Can a new installation of ubuntu be hacked? Does encryption provide any security?





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Do you know of any good sites where people answer questions related to hacking?



1)Is it correct that to hack a system the hacker has to find a program with vulnerabilities and use them to access a system? So if I just installed ubuntu, updated it and set up the firewall for web browsing, can my system be hacked? This is assuming that all known vulnerabilities of all the pre-installed packages have been fixed.



2)If a hacker knows my public ip address, then is it of any use using a vpn? Of course I can hide it from more people but what about someone who already knows?



3) I read that encrypting a hard disk or a single partition can protect it from viruses and malware. Is this correct? If I have two partitions on my hard-disk and one of them is infected and the other one is clean and encrypted, and I access the infected one then can the virus move to the encrypted partition?



4) When installing ubuntu, it asks you if you want to encrypt the home folder. How can I encrypt the whole partition? Can I encrypt a partition without losing data? If I have ubuntu installed on an encrypted partition, will I be asked a password during booting?



5) Do you think these problems can happen by due to system problems:




  • Screen brightness reducing and computer shutting off.


  • Audio stops playing.


  • Amazon app starting by itself without clicking on it.



Is it normal for auth.log to contain 15-20 lines only? Does it start a new log after a reboot?



6) Are there any user friendly programs which tell you about unauthorized access to your ubuntu os?










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    0















    Do you know of any good sites where people answer questions related to hacking?



    1)Is it correct that to hack a system the hacker has to find a program with vulnerabilities and use them to access a system? So if I just installed ubuntu, updated it and set up the firewall for web browsing, can my system be hacked? This is assuming that all known vulnerabilities of all the pre-installed packages have been fixed.



    2)If a hacker knows my public ip address, then is it of any use using a vpn? Of course I can hide it from more people but what about someone who already knows?



    3) I read that encrypting a hard disk or a single partition can protect it from viruses and malware. Is this correct? If I have two partitions on my hard-disk and one of them is infected and the other one is clean and encrypted, and I access the infected one then can the virus move to the encrypted partition?



    4) When installing ubuntu, it asks you if you want to encrypt the home folder. How can I encrypt the whole partition? Can I encrypt a partition without losing data? If I have ubuntu installed on an encrypted partition, will I be asked a password during booting?



    5) Do you think these problems can happen by due to system problems:




    • Screen brightness reducing and computer shutting off.


    • Audio stops playing.


    • Amazon app starting by itself without clicking on it.



    Is it normal for auth.log to contain 15-20 lines only? Does it start a new log after a reboot?



    6) Are there any user friendly programs which tell you about unauthorized access to your ubuntu os?










    share|improve this question

























      0












      0








      0








      Do you know of any good sites where people answer questions related to hacking?



      1)Is it correct that to hack a system the hacker has to find a program with vulnerabilities and use them to access a system? So if I just installed ubuntu, updated it and set up the firewall for web browsing, can my system be hacked? This is assuming that all known vulnerabilities of all the pre-installed packages have been fixed.



      2)If a hacker knows my public ip address, then is it of any use using a vpn? Of course I can hide it from more people but what about someone who already knows?



      3) I read that encrypting a hard disk or a single partition can protect it from viruses and malware. Is this correct? If I have two partitions on my hard-disk and one of them is infected and the other one is clean and encrypted, and I access the infected one then can the virus move to the encrypted partition?



      4) When installing ubuntu, it asks you if you want to encrypt the home folder. How can I encrypt the whole partition? Can I encrypt a partition without losing data? If I have ubuntu installed on an encrypted partition, will I be asked a password during booting?



      5) Do you think these problems can happen by due to system problems:




      • Screen brightness reducing and computer shutting off.


      • Audio stops playing.


      • Amazon app starting by itself without clicking on it.



      Is it normal for auth.log to contain 15-20 lines only? Does it start a new log after a reboot?



      6) Are there any user friendly programs which tell you about unauthorized access to your ubuntu os?










      share|improve this question














      Do you know of any good sites where people answer questions related to hacking?



      1)Is it correct that to hack a system the hacker has to find a program with vulnerabilities and use them to access a system? So if I just installed ubuntu, updated it and set up the firewall for web browsing, can my system be hacked? This is assuming that all known vulnerabilities of all the pre-installed packages have been fixed.



      2)If a hacker knows my public ip address, then is it of any use using a vpn? Of course I can hide it from more people but what about someone who already knows?



      3) I read that encrypting a hard disk or a single partition can protect it from viruses and malware. Is this correct? If I have two partitions on my hard-disk and one of them is infected and the other one is clean and encrypted, and I access the infected one then can the virus move to the encrypted partition?



      4) When installing ubuntu, it asks you if you want to encrypt the home folder. How can I encrypt the whole partition? Can I encrypt a partition without losing data? If I have ubuntu installed on an encrypted partition, will I be asked a password during booting?



      5) Do you think these problems can happen by due to system problems:




      • Screen brightness reducing and computer shutting off.


      • Audio stops playing.


      • Amazon app starting by itself without clicking on it.



      Is it normal for auth.log to contain 15-20 lines only? Does it start a new log after a reboot?



      6) Are there any user friendly programs which tell you about unauthorized access to your ubuntu os?







      encryption security






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      asked 25 mins ago









      Linux_user0987Linux_user0987

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