Opening UDP Ports
I'm trying to open a port which I believe I did but maybe It didn't work.
I'm trying to run a server of Counter Strike 1.6 and its Online however Its not responding when I try to refresh data about the server. I also tried to check and It fails with quering the ports as you can see here:
I'm assuming that It has something with the ports, I opened them using this command:
iptables -A INPUT -p udp -m udp --sport 27000:27030 --dport 1025:65355 -j ACCEPT
iptables -A INPUT -p udp -m udp --sport 4380 --dport 1025:65355 -j ACCEPT
I then tried to run nmap to see what ports are actually opened but It didn't seem like they are open:
14.04 networking server
edited May 28 '17 at 12:33
Android Dev
10.9k63362
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
bumped to the homepage by Community♦ 2 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
|
show 9 more comments
I'm trying to open a port which I believe I did but maybe It didn't work.
I'm trying to run a server of Counter Strike 1.6 and its Online however Its not responding when I try to refresh data about the server. I also tried to check and It fails with quering the ports as you can see here:
I'm assuming that It has something with the ports, I opened them using this command:
iptables -A INPUT -p udp -m udp --sport 27000:27030 --dport 1025:65355 -j ACCEPT
iptables -A INPUT -p udp -m udp --sport 4380 --dport 1025:65355 -j ACCEPT
I then tried to run nmap to see what ports are actually opened but It didn't seem like they are open:
14.04 networking server
edited May 28 '17 at 12:33
Android Dev
10.9k63362
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
bumped to the homepage by Community♦ 2 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
What NMAP command did you use?
– Robby1212
May 28 '17 at 12:23
NMAP ip_address
– Da black ninja
May 28 '17 at 12:23
What is the output ofnmap -p- ip_address?
– Robby1212
May 28 '17 at 12:25
@Robby1212 i.imgur.com/4rYmZrm.png
– Da black ninja
May 28 '17 at 12:27
Huh, well those ports definitely aren't open that much is for sure.
– Robby1212
May 28 '17 at 12:28
|
show 9 more comments
I'm trying to open a port which I believe I did but maybe It didn't work.
I'm trying to run a server of Counter Strike 1.6 and its Online however Its not responding when I try to refresh data about the server. I also tried to check and It fails with quering the ports as you can see here:
I'm assuming that It has something with the ports, I opened them using this command:
iptables -A INPUT -p udp -m udp --sport 27000:27030 --dport 1025:65355 -j ACCEPT
iptables -A INPUT -p udp -m udp --sport 4380 --dport 1025:65355 -j ACCEPT
I then tried to run nmap to see what ports are actually opened but It didn't seem like they are open:
14.04 networking server
edited May 28 '17 at 12:33
Android Dev
10.9k63362
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
I'm trying to open a port which I believe I did but maybe It didn't work.
I'm trying to run a server of Counter Strike 1.6 and its Online however Its not responding when I try to refresh data about the server. I also tried to check and It fails with quering the ports as you can see here:
I'm assuming that It has something with the ports, I opened them using this command:
iptables -A INPUT -p udp -m udp --sport 27000:27030 --dport 1025:65355 -j ACCEPT
iptables -A INPUT -p udp -m udp --sport 4380 --dport 1025:65355 -j ACCEPT
I then tried to run nmap to see what ports are actually opened but It didn't seem like they are open:
14.04 networking server
14.04 networking server
edited May 28 '17 at 12:33
Android Dev
10.9k63362
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
edited May 28 '17 at 12:33
Android Dev
10.9k63362
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
edited May 28 '17 at 12:33
Android Dev
10.9k63362
edited May 28 '17 at 12:33
Android Dev
10.9k63362
edited May 28 '17 at 12:33
Android Dev
10.9k63362
10.9k63362
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
asked May 28 '17 at 12:18
Da black ninjaDa black ninja
111
111
bumped to the homepage by Community♦ 2 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 2 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
What NMAP command did you use?
– Robby1212
May 28 '17 at 12:23
NMAP ip_address
– Da black ninja
May 28 '17 at 12:23
What is the output ofnmap -p- ip_address?
– Robby1212
May 28 '17 at 12:25
@Robby1212 i.imgur.com/4rYmZrm.png
– Da black ninja
May 28 '17 at 12:27
Huh, well those ports definitely aren't open that much is for sure.
– Robby1212
May 28 '17 at 12:28
|
show 9 more comments
What NMAP command did you use?
– Robby1212
May 28 '17 at 12:23
NMAP ip_address
– Da black ninja
May 28 '17 at 12:23
What is the output ofnmap -p- ip_address?
– Robby1212
May 28 '17 at 12:25
@Robby1212 i.imgur.com/4rYmZrm.png
– Da black ninja
May 28 '17 at 12:27
Huh, well those ports definitely aren't open that much is for sure.
– Robby1212
May 28 '17 at 12:28
What NMAP command did you use?
– Robby1212
May 28 '17 at 12:23
What NMAP command did you use?
– Robby1212
May 28 '17 at 12:23
NMAP ip_address
– Da black ninja
May 28 '17 at 12:23
NMAP ip_address
– Da black ninja
May 28 '17 at 12:23
What is the output of
nmap -p- ip_address?– Robby1212
May 28 '17 at 12:25
What is the output of
nmap -p- ip_address?– Robby1212
May 28 '17 at 12:25
@Robby1212 i.imgur.com/4rYmZrm.png
– Da black ninja
May 28 '17 at 12:27
@Robby1212 i.imgur.com/4rYmZrm.png
– Da black ninja
May 28 '17 at 12:27
Huh, well those ports definitely aren't open that much is for sure.
– Robby1212
May 28 '17 at 12:28
Huh, well those ports definitely aren't open that much is for sure.
– Robby1212
May 28 '17 at 12:28
|
show 9 more comments
1 Answer
1
active
oldest
votes
Change your iptables rules by add multiport
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
And maybe is better to only have destination port [if you do not do port forwarding].
sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
sudo sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
You can check connection on udp port with nc
sudo nc -v -z -u <ip_address_of_server> <port>
You will get output, something like in my example connection on port 69 aka tftp
xxx@yyy~$ nc -u -v -z 10.10.10.10 69
Connection to 10.10.10.10 69 port [udp/tftp] succeeded!
Complete `iptables1 rules will be
Disable UFW
sudo uwf disable
Delete curent rules and chains in iptables
sudo iptables --flush
sudo iptables --delete-chain
allow loopback
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A OUTPUT -o lo -j ACCEPT
drop ICMP
sudo iptables -A INPUT -p icmp --icmp-type any -j DROP
sudo iptables -A OUTPUT -p icmp -j DROP
allow established connections
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
Allow UDP ports
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
allow SSH or some different TCP port
sudo iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
default policies
sudo iptables -P INPUT DROP
sudo iptables -P OUTPUT ACCEPT
Save
sudo iptables-save
This is it. I think :)
answered May 28 '17 at 18:42
27079742707974
8,02352138
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Change your iptables rules by add multiport
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
And maybe is better to only have destination port [if you do not do port forwarding].
sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
sudo sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
You can check connection on udp port with nc
sudo nc -v -z -u <ip_address_of_server> <port>
You will get output, something like in my example connection on port 69 aka tftp
xxx@yyy~$ nc -u -v -z 10.10.10.10 69
Connection to 10.10.10.10 69 port [udp/tftp] succeeded!
Complete `iptables1 rules will be
Disable UFW
sudo uwf disable
Delete curent rules and chains in iptables
sudo iptables --flush
sudo iptables --delete-chain
allow loopback
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A OUTPUT -o lo -j ACCEPT
drop ICMP
sudo iptables -A INPUT -p icmp --icmp-type any -j DROP
sudo iptables -A OUTPUT -p icmp -j DROP
allow established connections
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
Allow UDP ports
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
allow SSH or some different TCP port
sudo iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
default policies
sudo iptables -P INPUT DROP
sudo iptables -P OUTPUT ACCEPT
Save
sudo iptables-save
This is it. I think :)
answered May 28 '17 at 18:42
27079742707974
8,02352138
add a comment |
Change your iptables rules by add multiport
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
And maybe is better to only have destination port [if you do not do port forwarding].
sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
sudo sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
You can check connection on udp port with nc
sudo nc -v -z -u <ip_address_of_server> <port>
You will get output, something like in my example connection on port 69 aka tftp
xxx@yyy~$ nc -u -v -z 10.10.10.10 69
Connection to 10.10.10.10 69 port [udp/tftp] succeeded!
Complete `iptables1 rules will be
Disable UFW
sudo uwf disable
Delete curent rules and chains in iptables
sudo iptables --flush
sudo iptables --delete-chain
allow loopback
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A OUTPUT -o lo -j ACCEPT
drop ICMP
sudo iptables -A INPUT -p icmp --icmp-type any -j DROP
sudo iptables -A OUTPUT -p icmp -j DROP
allow established connections
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
Allow UDP ports
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
allow SSH or some different TCP port
sudo iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
default policies
sudo iptables -P INPUT DROP
sudo iptables -P OUTPUT ACCEPT
Save
sudo iptables-save
This is it. I think :)
answered May 28 '17 at 18:42
27079742707974
8,02352138
add a comment |
Change your iptables rules by add multiport
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
And maybe is better to only have destination port [if you do not do port forwarding].
sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
sudo sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
You can check connection on udp port with nc
sudo nc -v -z -u <ip_address_of_server> <port>
You will get output, something like in my example connection on port 69 aka tftp
xxx@yyy~$ nc -u -v -z 10.10.10.10 69
Connection to 10.10.10.10 69 port [udp/tftp] succeeded!
Complete `iptables1 rules will be
Disable UFW
sudo uwf disable
Delete curent rules and chains in iptables
sudo iptables --flush
sudo iptables --delete-chain
allow loopback
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A OUTPUT -o lo -j ACCEPT
drop ICMP
sudo iptables -A INPUT -p icmp --icmp-type any -j DROP
sudo iptables -A OUTPUT -p icmp -j DROP
allow established connections
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
Allow UDP ports
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
allow SSH or some different TCP port
sudo iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
default policies
sudo iptables -P INPUT DROP
sudo iptables -P OUTPUT ACCEPT
Save
sudo iptables-save
This is it. I think :)
answered May 28 '17 at 18:42
27079742707974
8,02352138
Change your iptables rules by add multiport
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
And maybe is better to only have destination port [if you do not do port forwarding].
sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
sudo sudo iptables -A INPUT -p udp -m udp --match multiport --dport 1025:65355 -j ACCEPT
You can check connection on udp port with nc
sudo nc -v -z -u <ip_address_of_server> <port>
You will get output, something like in my example connection on port 69 aka tftp
xxx@yyy~$ nc -u -v -z 10.10.10.10 69
Connection to 10.10.10.10 69 port [udp/tftp] succeeded!
Complete `iptables1 rules will be
Disable UFW
sudo uwf disable
Delete curent rules and chains in iptables
sudo iptables --flush
sudo iptables --delete-chain
allow loopback
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A OUTPUT -o lo -j ACCEPT
drop ICMP
sudo iptables -A INPUT -p icmp --icmp-type any -j DROP
sudo iptables -A OUTPUT -p icmp -j DROP
allow established connections
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
Allow UDP ports
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 27000:27030 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p udp -m udp --match multiport --sport 4380 --dport 1025:65355 -j ACCEPT
allow SSH or some different TCP port
sudo iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
default policies
sudo iptables -P INPUT DROP
sudo iptables -P OUTPUT ACCEPT
Save
sudo iptables-save
This is it. I think :)
answered May 28 '17 at 18:42
27079742707974
8,02352138
edited May 28 '17 at 18:47
answered May 28 '17 at 18:42
27079742707974
8,02352138
answered May 28 '17 at 18:42
27079742707974
8,02352138
answered May 28 '17 at 18:42
27079742707974
8,02352138
8,02352138
add a comment |
add a comment |
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What NMAP command did you use?
– Robby1212
May 28 '17 at 12:23
NMAP ip_address
– Da black ninja
May 28 '17 at 12:23
What is the output of
nmap -p- ip_address?– Robby1212
May 28 '17 at 12:25
@Robby1212 i.imgur.com/4rYmZrm.png
– Da black ninja
May 28 '17 at 12:27
Huh, well those ports definitely aren't open that much is for sure.
– Robby1212
May 28 '17 at 12:28