How can I set up a Dynamic DNS fetching service on Ubuntu Server?












17















I've created accounts and hostnames within my http://no-ip.org/ account, which is by far the most commonly used service for my type of server. Can somebody walk me through the configuration process of using ddclient with no-ip, as I'm a command line noob?










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    17















    I've created accounts and hostnames within my http://no-ip.org/ account, which is by far the most commonly used service for my type of server. Can somebody walk me through the configuration process of using ddclient with no-ip, as I'm a command line noob?










    share|improve this question



























      17












      17








      17


      5






      I've created accounts and hostnames within my http://no-ip.org/ account, which is by far the most commonly used service for my type of server. Can somebody walk me through the configuration process of using ddclient with no-ip, as I'm a command line noob?










      share|improve this question
















      I've created accounts and hostnames within my http://no-ip.org/ account, which is by far the most commonly used service for my type of server. Can somebody walk me through the configuration process of using ddclient with no-ip, as I'm a command line noob?







      11.10 networking dhcp






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      edited Oct 28 '11 at 6:14









      belacqua

      15.9k1473103




      15.9k1473103










      asked Oct 28 '11 at 2:53









      TrevonTrevon

      86113




      86113






















          4 Answers
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          20














          Setting up ddclient for No-IP



          ddclient is a Dynamic Update Client (DUC) which can be used to update dynamic DNS entries. It checks the current IP address at regular intervals and updates the DNS information when a change is detected. Here is how to install and configure it for the No-IP (noip.com/no-ip.com) service.



          First, install the ddclient package. We will configure it manually later, so just press enter for all configuration questions.



          sudo apt-get install ddclient


          Stop the ddclient daemon. The sudo service ddclient stop command does not work on Ubuntu 12.04 due to a bug, so we use pkill instead.



          sudo pkill ddclient


          Edit the config files. To turn off the backup files (e.g. /etc/ddclient.conf~) which gedit creates by default and which could for example contain passwords after you thought you had deleted them, turn off the setting
          Edit -> Preferences -> Editor -> Create a backup copy of files before saving.



          sudo gedit /etc/ddclient.conf /etc/default/ddclient


          Delete the old content of /etc/ddclient.conf and paste in the template shown below.



          Read through the comments of the template and customize the file to your needs.



          It could be a good idea to use a noip.com sub-account, i.e. a group with password (this feature is a pay-service). This way, the password only gives access to updating the specified hosts and not full access to your entire No-IP account, which could include MX records (an attacker which acquires your password could change the MX records in order to intercept your e-mails) or other services such as IMAP accounts.



          You should probably set daemon_interval=3600 (see template comments).



          Test your configuration with the following command:



          sudo ddclient -daemon=0 -debug -verbose -noquiet -force


          You should get a good (IP address updated) or nochg (IP address was already set to that value) response. It is OK to receive the following warning at this point (but it is not OK to keep getting the warning during normal operation):



          WARNING: updating <hostname>: nochg: No update required; unnecessary attempts to change to the current address are considered abusive



          Note: There seems to be some caching going on at the No-IP server, so if the response you get from the server is not what you expect, it might help to just wait a little while.



          When you are done configuring, start the ddclient daemon:



          sudo service ddclient start


          The daemon will also start automatically each time you start the computer.



          The DNS entry/entries will now be updated each time an IP address change is detected.



          Troubleshooting



          Run package configuration again:



          sudo dpkg-reconfigure ddclient


          Remove package and config files:



          sudo apt-get purge ddclient


          Daemon control:



          sudo service ddclient status
          sudo service ddclient start
          sudo service ddclient stop
          # The stop command above does not work on Ubuntu 12.04 due to a bug, but
          # it works on 14.04. Here are alternative ways to control the daemon:
          ps -A f | grep -i ddclient
          sudo pkill ddclient


          Delete the cache to trick the daemon into updating the DNS entry for debugging purposes (during normal operation the DNS entry is only updated if the current IP address is different from the IP address stored in the cache):



          sudo pkill ddclient
          sudo rm /var/cache/ddclient/ddclient.cache
          sudo service ddclient start
          # See the result:
          tail /var/log/syslog
          # If you have set up mail=..., you should also receive an e-mail.
          # The syslog and e-mail should show a "good" or "nochg" response.


          Test whether the daemon will actually update the DNS entry when the IP address has changed, by setting the DNS entry IP address to 1.2.3.4 and then starting the daemon:



          sudo pkill ddclient
          sudo ddclient -daemon=0 -debug -verbose -noquiet -force -use ip -ip 1.2.3.4
          sleep 30 # ddclient will not perform updates less than 30 seconds apart
          sudo service ddclient start


          Debug run (update DNS entry never / as needed / always):



          sudo ddclient -daemon=0 -debug -verbose -noquiet -noexec
          sudo ddclient -daemon=0 -debug -verbose -noquiet
          sudo ddclient -daemon=0 -debug -verbose -noquiet -force


          Try to detect current IP address using various methods:



          sudo ddclient -query


          Files of interest:



          /etc/ddclient.conf
          /etc/default/ddclient
          /var/cache/ddclient/ddclient.cache


          Messages from the daemon will appear here (and will also be sent by e-mail if set up to do so):



          /var/log/syslog


          Documentation:




          • ddclient -help

          • /usr/share/doc/ddclient/examples/sample-etc_ddclient.conf.gz

          • ddclient home page

          • No-IP protocol


          Template for /etc/ddclient.conf



          ################################################################################
          # Configuration file for ddclient
          ################################################################################


          ################################################################################
          # Misc. configurations

          # To choose between ipup mode (for dial-on-demand) and daemon mode, please edit
          # /etc/default/ddclient.

          #mail=root # E-mail messages to this address
          #mail-failure=root # E-mail messages about failed updates to this address


          ################################################################################
          # How to obtain current IP address

          # Methods:
          # use=ip, ip=ADDRESS # Set the IP address to ADDRESS
          # use=if, if=INTERFACE, if-skip=PATTERN # Obtain IP address by calling 'ifconfig INTERFACE'
          # use=web, web=PROVIDER|URL, web-skip=PATTERN # Obtain IP address from IP discovery web page
          # use=cmd, cmd=PROGRAM, cmd-skip=PATTERN # Obtain IP address by calling PROGRAM
          # use=fw|FWMODEL, fw=ADDRESS|URL, fw-skip=PATTERN # Obtain IP address from firewall web page
          # fw-login=LOGIN, fw-password=SECRET
          #
          # The *-skip options can be used to skip IP addresses found before PATTERN.
          #
          # NOTE: The ddclient IP detection routines do not respect the HTTPS prefix in
          # URLs, and instead fall back to HTTP (this is fixed in version 3.8.1). The
          # option ssl=yes does not apply to the IP detection either (this is at least
          # how versions 3.8.0 to 3.8.2 behave).
          #
          # The default time between each IP address change check is daemon_interval=300
          # (5 minutes), which may be a bit too frequent when using an external IP
          # discovery service. To set the checking interval to e.g. one hour instead,
          # please edit /etc/default/ddclient and set daemon_interval=3600.

          # Obtain IP address from network interface
          #use=if, if=eth0

          # Obtain IP address from no-ip.com IP discovery web page (unencrypted connection)
          use=web, web='http://ip1.dynupdate.no-ip.com:8245/'

          # Obtain IP address from no-ip.com IP discovery web page (encrypted connection)
          # Encryption does not offer any real protection since a man-in-the-middle
          # attack could route the HTTPS connection through a host belonging to the
          # attacker, thus causing an incorrect IP address to be reported.
          #use=cmd, cmd='bash -c "set -o pipefail; timeout 120 wget -qO-
          # --header=Host:ip1.dynupdate.no-ip.com https://dynupdate.no-ip.com/ | head -c 1000"'


          ################################################################################
          # Dynamic DNS service setup

          protocol=noip
          #server= # Defaults to dynupdate.no-ip.com for noip protocol
          ssl=yes # NOTE: Does not apply when obtaining IP address, just when updating the DNS entry!
          login='nobody@nowhere.com' # Username. For No-IP sub-accounts (groups with passwords), use '<groupname>%3A<username>'.
          password='1234'


          ################################################################################
          # Hosts to update, with optional per-host options

          # Examples:
          # protocol=hammernode1,
          # login='my-hn-login', password='my-hn-password'
          # myhost.hn.org,myhost2.hn.org
          #
          # login='group2%3Ajohndoe@domain.com', password='1234' myhost3.no-ip.biz,myhost4.no-ip.biz
          #
          # myhost.no-ip.biz,myhost2.no-ip.biz

          my.full.hostname


          Update: Encrypted connection to IP detection service is quite pointless. This is now explained in the ddclient.conf template and it now defaults to using unencrypted connection for IP detection.






          share|improve this answer

































            1














            Here is a good walkthrough...
            http://www.ubuntugeek.com/update-ip-addresses-at-dynamic-dns-services-using-ddclient.html



            Hope this helps :)






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            • 1





              This doesn't address the OP's request for No-IP specific configuration.

              – nrobey
              Jul 3 '14 at 14:49



















            0














            No-ip has its own client which worked for me first time it was installed.



            There are instructions on their own website to download the client, and then it's a quick make && make install and you're done. Have your login credentials for no-ip to hand as you will be asked them as part of the configuration wizard. Afterwards, make sure you run noip2 and you can check your host account on their site to see if it has updated.






            share|improve this answer


























            • WARNING: noip2 has security issues! See this answer.

              – Håkon A. Hjortland
              May 1 '14 at 22:58











            • @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

              – MestreLion
              Jul 3 '14 at 1:58



















            0














            If you looking of a good dynamic domain name system



            please check out https://StaticIP.io





            share








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              20














              Setting up ddclient for No-IP



              ddclient is a Dynamic Update Client (DUC) which can be used to update dynamic DNS entries. It checks the current IP address at regular intervals and updates the DNS information when a change is detected. Here is how to install and configure it for the No-IP (noip.com/no-ip.com) service.



              First, install the ddclient package. We will configure it manually later, so just press enter for all configuration questions.



              sudo apt-get install ddclient


              Stop the ddclient daemon. The sudo service ddclient stop command does not work on Ubuntu 12.04 due to a bug, so we use pkill instead.



              sudo pkill ddclient


              Edit the config files. To turn off the backup files (e.g. /etc/ddclient.conf~) which gedit creates by default and which could for example contain passwords after you thought you had deleted them, turn off the setting
              Edit -> Preferences -> Editor -> Create a backup copy of files before saving.



              sudo gedit /etc/ddclient.conf /etc/default/ddclient


              Delete the old content of /etc/ddclient.conf and paste in the template shown below.



              Read through the comments of the template and customize the file to your needs.



              It could be a good idea to use a noip.com sub-account, i.e. a group with password (this feature is a pay-service). This way, the password only gives access to updating the specified hosts and not full access to your entire No-IP account, which could include MX records (an attacker which acquires your password could change the MX records in order to intercept your e-mails) or other services such as IMAP accounts.



              You should probably set daemon_interval=3600 (see template comments).



              Test your configuration with the following command:



              sudo ddclient -daemon=0 -debug -verbose -noquiet -force


              You should get a good (IP address updated) or nochg (IP address was already set to that value) response. It is OK to receive the following warning at this point (but it is not OK to keep getting the warning during normal operation):



              WARNING: updating <hostname>: nochg: No update required; unnecessary attempts to change to the current address are considered abusive



              Note: There seems to be some caching going on at the No-IP server, so if the response you get from the server is not what you expect, it might help to just wait a little while.



              When you are done configuring, start the ddclient daemon:



              sudo service ddclient start


              The daemon will also start automatically each time you start the computer.



              The DNS entry/entries will now be updated each time an IP address change is detected.



              Troubleshooting



              Run package configuration again:



              sudo dpkg-reconfigure ddclient


              Remove package and config files:



              sudo apt-get purge ddclient


              Daemon control:



              sudo service ddclient status
              sudo service ddclient start
              sudo service ddclient stop
              # The stop command above does not work on Ubuntu 12.04 due to a bug, but
              # it works on 14.04. Here are alternative ways to control the daemon:
              ps -A f | grep -i ddclient
              sudo pkill ddclient


              Delete the cache to trick the daemon into updating the DNS entry for debugging purposes (during normal operation the DNS entry is only updated if the current IP address is different from the IP address stored in the cache):



              sudo pkill ddclient
              sudo rm /var/cache/ddclient/ddclient.cache
              sudo service ddclient start
              # See the result:
              tail /var/log/syslog
              # If you have set up mail=..., you should also receive an e-mail.
              # The syslog and e-mail should show a "good" or "nochg" response.


              Test whether the daemon will actually update the DNS entry when the IP address has changed, by setting the DNS entry IP address to 1.2.3.4 and then starting the daemon:



              sudo pkill ddclient
              sudo ddclient -daemon=0 -debug -verbose -noquiet -force -use ip -ip 1.2.3.4
              sleep 30 # ddclient will not perform updates less than 30 seconds apart
              sudo service ddclient start


              Debug run (update DNS entry never / as needed / always):



              sudo ddclient -daemon=0 -debug -verbose -noquiet -noexec
              sudo ddclient -daemon=0 -debug -verbose -noquiet
              sudo ddclient -daemon=0 -debug -verbose -noquiet -force


              Try to detect current IP address using various methods:



              sudo ddclient -query


              Files of interest:



              /etc/ddclient.conf
              /etc/default/ddclient
              /var/cache/ddclient/ddclient.cache


              Messages from the daemon will appear here (and will also be sent by e-mail if set up to do so):



              /var/log/syslog


              Documentation:




              • ddclient -help

              • /usr/share/doc/ddclient/examples/sample-etc_ddclient.conf.gz

              • ddclient home page

              • No-IP protocol


              Template for /etc/ddclient.conf



              ################################################################################
              # Configuration file for ddclient
              ################################################################################


              ################################################################################
              # Misc. configurations

              # To choose between ipup mode (for dial-on-demand) and daemon mode, please edit
              # /etc/default/ddclient.

              #mail=root # E-mail messages to this address
              #mail-failure=root # E-mail messages about failed updates to this address


              ################################################################################
              # How to obtain current IP address

              # Methods:
              # use=ip, ip=ADDRESS # Set the IP address to ADDRESS
              # use=if, if=INTERFACE, if-skip=PATTERN # Obtain IP address by calling 'ifconfig INTERFACE'
              # use=web, web=PROVIDER|URL, web-skip=PATTERN # Obtain IP address from IP discovery web page
              # use=cmd, cmd=PROGRAM, cmd-skip=PATTERN # Obtain IP address by calling PROGRAM
              # use=fw|FWMODEL, fw=ADDRESS|URL, fw-skip=PATTERN # Obtain IP address from firewall web page
              # fw-login=LOGIN, fw-password=SECRET
              #
              # The *-skip options can be used to skip IP addresses found before PATTERN.
              #
              # NOTE: The ddclient IP detection routines do not respect the HTTPS prefix in
              # URLs, and instead fall back to HTTP (this is fixed in version 3.8.1). The
              # option ssl=yes does not apply to the IP detection either (this is at least
              # how versions 3.8.0 to 3.8.2 behave).
              #
              # The default time between each IP address change check is daemon_interval=300
              # (5 minutes), which may be a bit too frequent when using an external IP
              # discovery service. To set the checking interval to e.g. one hour instead,
              # please edit /etc/default/ddclient and set daemon_interval=3600.

              # Obtain IP address from network interface
              #use=if, if=eth0

              # Obtain IP address from no-ip.com IP discovery web page (unencrypted connection)
              use=web, web='http://ip1.dynupdate.no-ip.com:8245/'

              # Obtain IP address from no-ip.com IP discovery web page (encrypted connection)
              # Encryption does not offer any real protection since a man-in-the-middle
              # attack could route the HTTPS connection through a host belonging to the
              # attacker, thus causing an incorrect IP address to be reported.
              #use=cmd, cmd='bash -c "set -o pipefail; timeout 120 wget -qO-
              # --header=Host:ip1.dynupdate.no-ip.com https://dynupdate.no-ip.com/ | head -c 1000"'


              ################################################################################
              # Dynamic DNS service setup

              protocol=noip
              #server= # Defaults to dynupdate.no-ip.com for noip protocol
              ssl=yes # NOTE: Does not apply when obtaining IP address, just when updating the DNS entry!
              login='nobody@nowhere.com' # Username. For No-IP sub-accounts (groups with passwords), use '<groupname>%3A<username>'.
              password='1234'


              ################################################################################
              # Hosts to update, with optional per-host options

              # Examples:
              # protocol=hammernode1,
              # login='my-hn-login', password='my-hn-password'
              # myhost.hn.org,myhost2.hn.org
              #
              # login='group2%3Ajohndoe@domain.com', password='1234' myhost3.no-ip.biz,myhost4.no-ip.biz
              #
              # myhost.no-ip.biz,myhost2.no-ip.biz

              my.full.hostname


              Update: Encrypted connection to IP detection service is quite pointless. This is now explained in the ddclient.conf template and it now defaults to using unencrypted connection for IP detection.






              share|improve this answer






























                20














                Setting up ddclient for No-IP



                ddclient is a Dynamic Update Client (DUC) which can be used to update dynamic DNS entries. It checks the current IP address at regular intervals and updates the DNS information when a change is detected. Here is how to install and configure it for the No-IP (noip.com/no-ip.com) service.



                First, install the ddclient package. We will configure it manually later, so just press enter for all configuration questions.



                sudo apt-get install ddclient


                Stop the ddclient daemon. The sudo service ddclient stop command does not work on Ubuntu 12.04 due to a bug, so we use pkill instead.



                sudo pkill ddclient


                Edit the config files. To turn off the backup files (e.g. /etc/ddclient.conf~) which gedit creates by default and which could for example contain passwords after you thought you had deleted them, turn off the setting
                Edit -> Preferences -> Editor -> Create a backup copy of files before saving.



                sudo gedit /etc/ddclient.conf /etc/default/ddclient


                Delete the old content of /etc/ddclient.conf and paste in the template shown below.



                Read through the comments of the template and customize the file to your needs.



                It could be a good idea to use a noip.com sub-account, i.e. a group with password (this feature is a pay-service). This way, the password only gives access to updating the specified hosts and not full access to your entire No-IP account, which could include MX records (an attacker which acquires your password could change the MX records in order to intercept your e-mails) or other services such as IMAP accounts.



                You should probably set daemon_interval=3600 (see template comments).



                Test your configuration with the following command:



                sudo ddclient -daemon=0 -debug -verbose -noquiet -force


                You should get a good (IP address updated) or nochg (IP address was already set to that value) response. It is OK to receive the following warning at this point (but it is not OK to keep getting the warning during normal operation):



                WARNING: updating <hostname>: nochg: No update required; unnecessary attempts to change to the current address are considered abusive



                Note: There seems to be some caching going on at the No-IP server, so if the response you get from the server is not what you expect, it might help to just wait a little while.



                When you are done configuring, start the ddclient daemon:



                sudo service ddclient start


                The daemon will also start automatically each time you start the computer.



                The DNS entry/entries will now be updated each time an IP address change is detected.



                Troubleshooting



                Run package configuration again:



                sudo dpkg-reconfigure ddclient


                Remove package and config files:



                sudo apt-get purge ddclient


                Daemon control:



                sudo service ddclient status
                sudo service ddclient start
                sudo service ddclient stop
                # The stop command above does not work on Ubuntu 12.04 due to a bug, but
                # it works on 14.04. Here are alternative ways to control the daemon:
                ps -A f | grep -i ddclient
                sudo pkill ddclient


                Delete the cache to trick the daemon into updating the DNS entry for debugging purposes (during normal operation the DNS entry is only updated if the current IP address is different from the IP address stored in the cache):



                sudo pkill ddclient
                sudo rm /var/cache/ddclient/ddclient.cache
                sudo service ddclient start
                # See the result:
                tail /var/log/syslog
                # If you have set up mail=..., you should also receive an e-mail.
                # The syslog and e-mail should show a "good" or "nochg" response.


                Test whether the daemon will actually update the DNS entry when the IP address has changed, by setting the DNS entry IP address to 1.2.3.4 and then starting the daemon:



                sudo pkill ddclient
                sudo ddclient -daemon=0 -debug -verbose -noquiet -force -use ip -ip 1.2.3.4
                sleep 30 # ddclient will not perform updates less than 30 seconds apart
                sudo service ddclient start


                Debug run (update DNS entry never / as needed / always):



                sudo ddclient -daemon=0 -debug -verbose -noquiet -noexec
                sudo ddclient -daemon=0 -debug -verbose -noquiet
                sudo ddclient -daemon=0 -debug -verbose -noquiet -force


                Try to detect current IP address using various methods:



                sudo ddclient -query


                Files of interest:



                /etc/ddclient.conf
                /etc/default/ddclient
                /var/cache/ddclient/ddclient.cache


                Messages from the daemon will appear here (and will also be sent by e-mail if set up to do so):



                /var/log/syslog


                Documentation:




                • ddclient -help

                • /usr/share/doc/ddclient/examples/sample-etc_ddclient.conf.gz

                • ddclient home page

                • No-IP protocol


                Template for /etc/ddclient.conf



                ################################################################################
                # Configuration file for ddclient
                ################################################################################


                ################################################################################
                # Misc. configurations

                # To choose between ipup mode (for dial-on-demand) and daemon mode, please edit
                # /etc/default/ddclient.

                #mail=root # E-mail messages to this address
                #mail-failure=root # E-mail messages about failed updates to this address


                ################################################################################
                # How to obtain current IP address

                # Methods:
                # use=ip, ip=ADDRESS # Set the IP address to ADDRESS
                # use=if, if=INTERFACE, if-skip=PATTERN # Obtain IP address by calling 'ifconfig INTERFACE'
                # use=web, web=PROVIDER|URL, web-skip=PATTERN # Obtain IP address from IP discovery web page
                # use=cmd, cmd=PROGRAM, cmd-skip=PATTERN # Obtain IP address by calling PROGRAM
                # use=fw|FWMODEL, fw=ADDRESS|URL, fw-skip=PATTERN # Obtain IP address from firewall web page
                # fw-login=LOGIN, fw-password=SECRET
                #
                # The *-skip options can be used to skip IP addresses found before PATTERN.
                #
                # NOTE: The ddclient IP detection routines do not respect the HTTPS prefix in
                # URLs, and instead fall back to HTTP (this is fixed in version 3.8.1). The
                # option ssl=yes does not apply to the IP detection either (this is at least
                # how versions 3.8.0 to 3.8.2 behave).
                #
                # The default time between each IP address change check is daemon_interval=300
                # (5 minutes), which may be a bit too frequent when using an external IP
                # discovery service. To set the checking interval to e.g. one hour instead,
                # please edit /etc/default/ddclient and set daemon_interval=3600.

                # Obtain IP address from network interface
                #use=if, if=eth0

                # Obtain IP address from no-ip.com IP discovery web page (unencrypted connection)
                use=web, web='http://ip1.dynupdate.no-ip.com:8245/'

                # Obtain IP address from no-ip.com IP discovery web page (encrypted connection)
                # Encryption does not offer any real protection since a man-in-the-middle
                # attack could route the HTTPS connection through a host belonging to the
                # attacker, thus causing an incorrect IP address to be reported.
                #use=cmd, cmd='bash -c "set -o pipefail; timeout 120 wget -qO-
                # --header=Host:ip1.dynupdate.no-ip.com https://dynupdate.no-ip.com/ | head -c 1000"'


                ################################################################################
                # Dynamic DNS service setup

                protocol=noip
                #server= # Defaults to dynupdate.no-ip.com for noip protocol
                ssl=yes # NOTE: Does not apply when obtaining IP address, just when updating the DNS entry!
                login='nobody@nowhere.com' # Username. For No-IP sub-accounts (groups with passwords), use '<groupname>%3A<username>'.
                password='1234'


                ################################################################################
                # Hosts to update, with optional per-host options

                # Examples:
                # protocol=hammernode1,
                # login='my-hn-login', password='my-hn-password'
                # myhost.hn.org,myhost2.hn.org
                #
                # login='group2%3Ajohndoe@domain.com', password='1234' myhost3.no-ip.biz,myhost4.no-ip.biz
                #
                # myhost.no-ip.biz,myhost2.no-ip.biz

                my.full.hostname


                Update: Encrypted connection to IP detection service is quite pointless. This is now explained in the ddclient.conf template and it now defaults to using unencrypted connection for IP detection.






                share|improve this answer




























                  20












                  20








                  20







                  Setting up ddclient for No-IP



                  ddclient is a Dynamic Update Client (DUC) which can be used to update dynamic DNS entries. It checks the current IP address at regular intervals and updates the DNS information when a change is detected. Here is how to install and configure it for the No-IP (noip.com/no-ip.com) service.



                  First, install the ddclient package. We will configure it manually later, so just press enter for all configuration questions.



                  sudo apt-get install ddclient


                  Stop the ddclient daemon. The sudo service ddclient stop command does not work on Ubuntu 12.04 due to a bug, so we use pkill instead.



                  sudo pkill ddclient


                  Edit the config files. To turn off the backup files (e.g. /etc/ddclient.conf~) which gedit creates by default and which could for example contain passwords after you thought you had deleted them, turn off the setting
                  Edit -> Preferences -> Editor -> Create a backup copy of files before saving.



                  sudo gedit /etc/ddclient.conf /etc/default/ddclient


                  Delete the old content of /etc/ddclient.conf and paste in the template shown below.



                  Read through the comments of the template and customize the file to your needs.



                  It could be a good idea to use a noip.com sub-account, i.e. a group with password (this feature is a pay-service). This way, the password only gives access to updating the specified hosts and not full access to your entire No-IP account, which could include MX records (an attacker which acquires your password could change the MX records in order to intercept your e-mails) or other services such as IMAP accounts.



                  You should probably set daemon_interval=3600 (see template comments).



                  Test your configuration with the following command:



                  sudo ddclient -daemon=0 -debug -verbose -noquiet -force


                  You should get a good (IP address updated) or nochg (IP address was already set to that value) response. It is OK to receive the following warning at this point (but it is not OK to keep getting the warning during normal operation):



                  WARNING: updating <hostname>: nochg: No update required; unnecessary attempts to change to the current address are considered abusive



                  Note: There seems to be some caching going on at the No-IP server, so if the response you get from the server is not what you expect, it might help to just wait a little while.



                  When you are done configuring, start the ddclient daemon:



                  sudo service ddclient start


                  The daemon will also start automatically each time you start the computer.



                  The DNS entry/entries will now be updated each time an IP address change is detected.



                  Troubleshooting



                  Run package configuration again:



                  sudo dpkg-reconfigure ddclient


                  Remove package and config files:



                  sudo apt-get purge ddclient


                  Daemon control:



                  sudo service ddclient status
                  sudo service ddclient start
                  sudo service ddclient stop
                  # The stop command above does not work on Ubuntu 12.04 due to a bug, but
                  # it works on 14.04. Here are alternative ways to control the daemon:
                  ps -A f | grep -i ddclient
                  sudo pkill ddclient


                  Delete the cache to trick the daemon into updating the DNS entry for debugging purposes (during normal operation the DNS entry is only updated if the current IP address is different from the IP address stored in the cache):



                  sudo pkill ddclient
                  sudo rm /var/cache/ddclient/ddclient.cache
                  sudo service ddclient start
                  # See the result:
                  tail /var/log/syslog
                  # If you have set up mail=..., you should also receive an e-mail.
                  # The syslog and e-mail should show a "good" or "nochg" response.


                  Test whether the daemon will actually update the DNS entry when the IP address has changed, by setting the DNS entry IP address to 1.2.3.4 and then starting the daemon:



                  sudo pkill ddclient
                  sudo ddclient -daemon=0 -debug -verbose -noquiet -force -use ip -ip 1.2.3.4
                  sleep 30 # ddclient will not perform updates less than 30 seconds apart
                  sudo service ddclient start


                  Debug run (update DNS entry never / as needed / always):



                  sudo ddclient -daemon=0 -debug -verbose -noquiet -noexec
                  sudo ddclient -daemon=0 -debug -verbose -noquiet
                  sudo ddclient -daemon=0 -debug -verbose -noquiet -force


                  Try to detect current IP address using various methods:



                  sudo ddclient -query


                  Files of interest:



                  /etc/ddclient.conf
                  /etc/default/ddclient
                  /var/cache/ddclient/ddclient.cache


                  Messages from the daemon will appear here (and will also be sent by e-mail if set up to do so):



                  /var/log/syslog


                  Documentation:




                  • ddclient -help

                  • /usr/share/doc/ddclient/examples/sample-etc_ddclient.conf.gz

                  • ddclient home page

                  • No-IP protocol


                  Template for /etc/ddclient.conf



                  ################################################################################
                  # Configuration file for ddclient
                  ################################################################################


                  ################################################################################
                  # Misc. configurations

                  # To choose between ipup mode (for dial-on-demand) and daemon mode, please edit
                  # /etc/default/ddclient.

                  #mail=root # E-mail messages to this address
                  #mail-failure=root # E-mail messages about failed updates to this address


                  ################################################################################
                  # How to obtain current IP address

                  # Methods:
                  # use=ip, ip=ADDRESS # Set the IP address to ADDRESS
                  # use=if, if=INTERFACE, if-skip=PATTERN # Obtain IP address by calling 'ifconfig INTERFACE'
                  # use=web, web=PROVIDER|URL, web-skip=PATTERN # Obtain IP address from IP discovery web page
                  # use=cmd, cmd=PROGRAM, cmd-skip=PATTERN # Obtain IP address by calling PROGRAM
                  # use=fw|FWMODEL, fw=ADDRESS|URL, fw-skip=PATTERN # Obtain IP address from firewall web page
                  # fw-login=LOGIN, fw-password=SECRET
                  #
                  # The *-skip options can be used to skip IP addresses found before PATTERN.
                  #
                  # NOTE: The ddclient IP detection routines do not respect the HTTPS prefix in
                  # URLs, and instead fall back to HTTP (this is fixed in version 3.8.1). The
                  # option ssl=yes does not apply to the IP detection either (this is at least
                  # how versions 3.8.0 to 3.8.2 behave).
                  #
                  # The default time between each IP address change check is daemon_interval=300
                  # (5 minutes), which may be a bit too frequent when using an external IP
                  # discovery service. To set the checking interval to e.g. one hour instead,
                  # please edit /etc/default/ddclient and set daemon_interval=3600.

                  # Obtain IP address from network interface
                  #use=if, if=eth0

                  # Obtain IP address from no-ip.com IP discovery web page (unencrypted connection)
                  use=web, web='http://ip1.dynupdate.no-ip.com:8245/'

                  # Obtain IP address from no-ip.com IP discovery web page (encrypted connection)
                  # Encryption does not offer any real protection since a man-in-the-middle
                  # attack could route the HTTPS connection through a host belonging to the
                  # attacker, thus causing an incorrect IP address to be reported.
                  #use=cmd, cmd='bash -c "set -o pipefail; timeout 120 wget -qO-
                  # --header=Host:ip1.dynupdate.no-ip.com https://dynupdate.no-ip.com/ | head -c 1000"'


                  ################################################################################
                  # Dynamic DNS service setup

                  protocol=noip
                  #server= # Defaults to dynupdate.no-ip.com for noip protocol
                  ssl=yes # NOTE: Does not apply when obtaining IP address, just when updating the DNS entry!
                  login='nobody@nowhere.com' # Username. For No-IP sub-accounts (groups with passwords), use '<groupname>%3A<username>'.
                  password='1234'


                  ################################################################################
                  # Hosts to update, with optional per-host options

                  # Examples:
                  # protocol=hammernode1,
                  # login='my-hn-login', password='my-hn-password'
                  # myhost.hn.org,myhost2.hn.org
                  #
                  # login='group2%3Ajohndoe@domain.com', password='1234' myhost3.no-ip.biz,myhost4.no-ip.biz
                  #
                  # myhost.no-ip.biz,myhost2.no-ip.biz

                  my.full.hostname


                  Update: Encrypted connection to IP detection service is quite pointless. This is now explained in the ddclient.conf template and it now defaults to using unencrypted connection for IP detection.






                  share|improve this answer















                  Setting up ddclient for No-IP



                  ddclient is a Dynamic Update Client (DUC) which can be used to update dynamic DNS entries. It checks the current IP address at regular intervals and updates the DNS information when a change is detected. Here is how to install and configure it for the No-IP (noip.com/no-ip.com) service.



                  First, install the ddclient package. We will configure it manually later, so just press enter for all configuration questions.



                  sudo apt-get install ddclient


                  Stop the ddclient daemon. The sudo service ddclient stop command does not work on Ubuntu 12.04 due to a bug, so we use pkill instead.



                  sudo pkill ddclient


                  Edit the config files. To turn off the backup files (e.g. /etc/ddclient.conf~) which gedit creates by default and which could for example contain passwords after you thought you had deleted them, turn off the setting
                  Edit -> Preferences -> Editor -> Create a backup copy of files before saving.



                  sudo gedit /etc/ddclient.conf /etc/default/ddclient


                  Delete the old content of /etc/ddclient.conf and paste in the template shown below.



                  Read through the comments of the template and customize the file to your needs.



                  It could be a good idea to use a noip.com sub-account, i.e. a group with password (this feature is a pay-service). This way, the password only gives access to updating the specified hosts and not full access to your entire No-IP account, which could include MX records (an attacker which acquires your password could change the MX records in order to intercept your e-mails) or other services such as IMAP accounts.



                  You should probably set daemon_interval=3600 (see template comments).



                  Test your configuration with the following command:



                  sudo ddclient -daemon=0 -debug -verbose -noquiet -force


                  You should get a good (IP address updated) or nochg (IP address was already set to that value) response. It is OK to receive the following warning at this point (but it is not OK to keep getting the warning during normal operation):



                  WARNING: updating <hostname>: nochg: No update required; unnecessary attempts to change to the current address are considered abusive



                  Note: There seems to be some caching going on at the No-IP server, so if the response you get from the server is not what you expect, it might help to just wait a little while.



                  When you are done configuring, start the ddclient daemon:



                  sudo service ddclient start


                  The daemon will also start automatically each time you start the computer.



                  The DNS entry/entries will now be updated each time an IP address change is detected.



                  Troubleshooting



                  Run package configuration again:



                  sudo dpkg-reconfigure ddclient


                  Remove package and config files:



                  sudo apt-get purge ddclient


                  Daemon control:



                  sudo service ddclient status
                  sudo service ddclient start
                  sudo service ddclient stop
                  # The stop command above does not work on Ubuntu 12.04 due to a bug, but
                  # it works on 14.04. Here are alternative ways to control the daemon:
                  ps -A f | grep -i ddclient
                  sudo pkill ddclient


                  Delete the cache to trick the daemon into updating the DNS entry for debugging purposes (during normal operation the DNS entry is only updated if the current IP address is different from the IP address stored in the cache):



                  sudo pkill ddclient
                  sudo rm /var/cache/ddclient/ddclient.cache
                  sudo service ddclient start
                  # See the result:
                  tail /var/log/syslog
                  # If you have set up mail=..., you should also receive an e-mail.
                  # The syslog and e-mail should show a "good" or "nochg" response.


                  Test whether the daemon will actually update the DNS entry when the IP address has changed, by setting the DNS entry IP address to 1.2.3.4 and then starting the daemon:



                  sudo pkill ddclient
                  sudo ddclient -daemon=0 -debug -verbose -noquiet -force -use ip -ip 1.2.3.4
                  sleep 30 # ddclient will not perform updates less than 30 seconds apart
                  sudo service ddclient start


                  Debug run (update DNS entry never / as needed / always):



                  sudo ddclient -daemon=0 -debug -verbose -noquiet -noexec
                  sudo ddclient -daemon=0 -debug -verbose -noquiet
                  sudo ddclient -daemon=0 -debug -verbose -noquiet -force


                  Try to detect current IP address using various methods:



                  sudo ddclient -query


                  Files of interest:



                  /etc/ddclient.conf
                  /etc/default/ddclient
                  /var/cache/ddclient/ddclient.cache


                  Messages from the daemon will appear here (and will also be sent by e-mail if set up to do so):



                  /var/log/syslog


                  Documentation:




                  • ddclient -help

                  • /usr/share/doc/ddclient/examples/sample-etc_ddclient.conf.gz

                  • ddclient home page

                  • No-IP protocol


                  Template for /etc/ddclient.conf



                  ################################################################################
                  # Configuration file for ddclient
                  ################################################################################


                  ################################################################################
                  # Misc. configurations

                  # To choose between ipup mode (for dial-on-demand) and daemon mode, please edit
                  # /etc/default/ddclient.

                  #mail=root # E-mail messages to this address
                  #mail-failure=root # E-mail messages about failed updates to this address


                  ################################################################################
                  # How to obtain current IP address

                  # Methods:
                  # use=ip, ip=ADDRESS # Set the IP address to ADDRESS
                  # use=if, if=INTERFACE, if-skip=PATTERN # Obtain IP address by calling 'ifconfig INTERFACE'
                  # use=web, web=PROVIDER|URL, web-skip=PATTERN # Obtain IP address from IP discovery web page
                  # use=cmd, cmd=PROGRAM, cmd-skip=PATTERN # Obtain IP address by calling PROGRAM
                  # use=fw|FWMODEL, fw=ADDRESS|URL, fw-skip=PATTERN # Obtain IP address from firewall web page
                  # fw-login=LOGIN, fw-password=SECRET
                  #
                  # The *-skip options can be used to skip IP addresses found before PATTERN.
                  #
                  # NOTE: The ddclient IP detection routines do not respect the HTTPS prefix in
                  # URLs, and instead fall back to HTTP (this is fixed in version 3.8.1). The
                  # option ssl=yes does not apply to the IP detection either (this is at least
                  # how versions 3.8.0 to 3.8.2 behave).
                  #
                  # The default time between each IP address change check is daemon_interval=300
                  # (5 minutes), which may be a bit too frequent when using an external IP
                  # discovery service. To set the checking interval to e.g. one hour instead,
                  # please edit /etc/default/ddclient and set daemon_interval=3600.

                  # Obtain IP address from network interface
                  #use=if, if=eth0

                  # Obtain IP address from no-ip.com IP discovery web page (unencrypted connection)
                  use=web, web='http://ip1.dynupdate.no-ip.com:8245/'

                  # Obtain IP address from no-ip.com IP discovery web page (encrypted connection)
                  # Encryption does not offer any real protection since a man-in-the-middle
                  # attack could route the HTTPS connection through a host belonging to the
                  # attacker, thus causing an incorrect IP address to be reported.
                  #use=cmd, cmd='bash -c "set -o pipefail; timeout 120 wget -qO-
                  # --header=Host:ip1.dynupdate.no-ip.com https://dynupdate.no-ip.com/ | head -c 1000"'


                  ################################################################################
                  # Dynamic DNS service setup

                  protocol=noip
                  #server= # Defaults to dynupdate.no-ip.com for noip protocol
                  ssl=yes # NOTE: Does not apply when obtaining IP address, just when updating the DNS entry!
                  login='nobody@nowhere.com' # Username. For No-IP sub-accounts (groups with passwords), use '<groupname>%3A<username>'.
                  password='1234'


                  ################################################################################
                  # Hosts to update, with optional per-host options

                  # Examples:
                  # protocol=hammernode1,
                  # login='my-hn-login', password='my-hn-password'
                  # myhost.hn.org,myhost2.hn.org
                  #
                  # login='group2%3Ajohndoe@domain.com', password='1234' myhost3.no-ip.biz,myhost4.no-ip.biz
                  #
                  # myhost.no-ip.biz,myhost2.no-ip.biz

                  my.full.hostname


                  Update: Encrypted connection to IP detection service is quite pointless. This is now explained in the ddclient.conf template and it now defaults to using unencrypted connection for IP detection.







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited May 4 '14 at 1:47

























                  answered Apr 30 '14 at 20:29









                  Håkon A. HjortlandHåkon A. Hjortland

                  3,20112225




                  3,20112225

























                      1














                      Here is a good walkthrough...
                      http://www.ubuntugeek.com/update-ip-addresses-at-dynamic-dns-services-using-ddclient.html



                      Hope this helps :)






                      share|improve this answer



















                      • 1





                        This doesn't address the OP's request for No-IP specific configuration.

                        – nrobey
                        Jul 3 '14 at 14:49
















                      1














                      Here is a good walkthrough...
                      http://www.ubuntugeek.com/update-ip-addresses-at-dynamic-dns-services-using-ddclient.html



                      Hope this helps :)






                      share|improve this answer



















                      • 1





                        This doesn't address the OP's request for No-IP specific configuration.

                        – nrobey
                        Jul 3 '14 at 14:49














                      1












                      1








                      1







                      Here is a good walkthrough...
                      http://www.ubuntugeek.com/update-ip-addresses-at-dynamic-dns-services-using-ddclient.html



                      Hope this helps :)






                      share|improve this answer













                      Here is a good walkthrough...
                      http://www.ubuntugeek.com/update-ip-addresses-at-dynamic-dns-services-using-ddclient.html



                      Hope this helps :)







                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered Oct 28 '11 at 4:08









                      nobodynobody

                      4231718




                      4231718








                      • 1





                        This doesn't address the OP's request for No-IP specific configuration.

                        – nrobey
                        Jul 3 '14 at 14:49














                      • 1





                        This doesn't address the OP's request for No-IP specific configuration.

                        – nrobey
                        Jul 3 '14 at 14:49








                      1




                      1





                      This doesn't address the OP's request for No-IP specific configuration.

                      – nrobey
                      Jul 3 '14 at 14:49





                      This doesn't address the OP's request for No-IP specific configuration.

                      – nrobey
                      Jul 3 '14 at 14:49











                      0














                      No-ip has its own client which worked for me first time it was installed.



                      There are instructions on their own website to download the client, and then it's a quick make && make install and you're done. Have your login credentials for no-ip to hand as you will be asked them as part of the configuration wizard. Afterwards, make sure you run noip2 and you can check your host account on their site to see if it has updated.






                      share|improve this answer


























                      • WARNING: noip2 has security issues! See this answer.

                        – Håkon A. Hjortland
                        May 1 '14 at 22:58











                      • @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

                        – MestreLion
                        Jul 3 '14 at 1:58
















                      0














                      No-ip has its own client which worked for me first time it was installed.



                      There are instructions on their own website to download the client, and then it's a quick make && make install and you're done. Have your login credentials for no-ip to hand as you will be asked them as part of the configuration wizard. Afterwards, make sure you run noip2 and you can check your host account on their site to see if it has updated.






                      share|improve this answer


























                      • WARNING: noip2 has security issues! See this answer.

                        – Håkon A. Hjortland
                        May 1 '14 at 22:58











                      • @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

                        – MestreLion
                        Jul 3 '14 at 1:58














                      0












                      0








                      0







                      No-ip has its own client which worked for me first time it was installed.



                      There are instructions on their own website to download the client, and then it's a quick make && make install and you're done. Have your login credentials for no-ip to hand as you will be asked them as part of the configuration wizard. Afterwards, make sure you run noip2 and you can check your host account on their site to see if it has updated.






                      share|improve this answer















                      No-ip has its own client which worked for me first time it was installed.



                      There are instructions on their own website to download the client, and then it's a quick make && make install and you're done. Have your login credentials for no-ip to hand as you will be asked them as part of the configuration wizard. Afterwards, make sure you run noip2 and you can check your host account on their site to see if it has updated.







                      share|improve this answer














                      share|improve this answer



                      share|improve this answer








                      edited Oct 6 '12 at 12:14









                      Eliah Kagan

                      83k22229369




                      83k22229369










                      answered Aug 7 '12 at 9:46









                      ChrisChris

                      213




                      213













                      • WARNING: noip2 has security issues! See this answer.

                        – Håkon A. Hjortland
                        May 1 '14 at 22:58











                      • @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

                        – MestreLion
                        Jul 3 '14 at 1:58



















                      • WARNING: noip2 has security issues! See this answer.

                        – Håkon A. Hjortland
                        May 1 '14 at 22:58











                      • @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

                        – MestreLion
                        Jul 3 '14 at 1:58

















                      WARNING: noip2 has security issues! See this answer.

                      – Håkon A. Hjortland
                      May 1 '14 at 22:58





                      WARNING: noip2 has security issues! See this answer.

                      – Håkon A. Hjortland
                      May 1 '14 at 22:58













                      @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

                      – MestreLion
                      Jul 3 '14 at 1:58





                      @HåkonA.Hjortland: I didn't realize it accepts HTTPS connections. I've deleted my previous incorrect statement, thanks!

                      – MestreLion
                      Jul 3 '14 at 1:58











                      0














                      If you looking of a good dynamic domain name system



                      please check out https://StaticIP.io





                      share








                      New contributor




                      G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                      Check out our Code of Conduct.

























                        0














                        If you looking of a good dynamic domain name system



                        please check out https://StaticIP.io





                        share








                        New contributor




                        G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                        Check out our Code of Conduct.























                          0












                          0








                          0







                          If you looking of a good dynamic domain name system



                          please check out https://StaticIP.io





                          share








                          New contributor




                          G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                          Check out our Code of Conduct.










                          If you looking of a good dynamic domain name system



                          please check out https://StaticIP.io






                          share








                          New contributor




                          G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                          Check out our Code of Conduct.








                          share


                          share






                          New contributor




                          G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                          Check out our Code of Conduct.









                          answered 3 mins ago









                          G CG C

                          1




                          1




                          New contributor




                          G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                          Check out our Code of Conduct.





                          New contributor





                          G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                          Check out our Code of Conduct.






                          G C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                          Check out our Code of Conduct.






























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