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Sophos Antivirus for Linux (Ubuntu 16.04) with CyberghostVPN did not install correctly & corrupted my Internet access - How to install on Linux with a VPN service?

Peter Wein

Hi!

This is my first post here. I thought I would never have installed a Antivirus program on Linux. But faith proved me wrong. So I beg for your help now, cause it went wrong.

I have installed Sophos Antivirus for Linux on my Ubuntu 16.04 with a running CyberghostVPN connection (A VPN Tunnel service). After installation, I could not access anything in the internet (no DNS resolution), but was able to access the intranet locally. Now I solved it. So I can access again the internet ressources, but I have no Sophos installed.

Steps:

  1. It throws an error during installation I do not remember (I guess something python related, it was yesterday late in the evening)
  2. I removed the package by following KB 133542
  3. So I decided to reinstall the complete network-manager with all of its dependencies. It did not work.
  4. I found out by comparing to another Ubuntu 16.04 system that 
    • /etc/network/interfaces looked the same just : 
      auto lo
      iface lo inet loopback
  5. /etc/resolv.conf was pointing to a complete unknown address 10.101.0.243 (who was causing this, I don't know: either Sophos or cyberghostvpn, which was running in the background?):
  6. After restoring to its original values internet connection worked again: 
    nameserver 127.0.1.1
    search fritz.box

How could I properly install Sophos Antivirus next to CyberghostVPN on Ubuntu 16.04! Maybe I have to install it vice versa? Did CyberghostVPn and Sophos maybe share the same ressources and prevent each other from working? Is Sophos also written in Python, cause I guess, CyberghostVPN for Linux is?

Any help appreciated, even without CyberghostVPN!

BR



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  • 0

    Hi  

    Would you please suggest whether Sophos Anti Virus for Linux is managed by Sophos Central?

    Regards,

    Jasmin
    Community Support Engineer | Sophos Support
    Sophos Support Videos | Knowledge Base  |  @SophosSupport | Sign up for SMS Alerts |
    If a post solves your question use the 'This helped me' link

  • 0 in reply to Jasmin

    Hi Jasmin,

    I did not understand you, but the tip to post here came from a guy of Sophos in Germany, who could not help me, because I used a non commercial version. But anyway, I suppose, that if it is not running, I would not rather think about buying a version. So I hope I can find a quick help here.

    If you imply, that I am in the wrong forum, please advise me, where to post!

    Regards

    Peter

  • +1 in reply to Peter Wein

    Hi  

    Sophos support is available for the licensed product, not for the free products. I am assuming that you are using Sophos Anti-Virus for Linux free version.

    Would you please try remove the VPN and then try to install Sophos on the machine and then install the VPN back on the machine and check the result?

    Regards,

    Jasmin
    Community Support Engineer | Sophos Support
    Sophos Support Videos | Knowledge Base  |  @SophosSupport | Sign up for SMS Alerts |
    If a post solves your question use the 'This helped me' link

  • 0 in reply to Jasmin

    Hi Jasmin,

    I will do so! How can I detect that the process is running in the background. I guess the first thing would be a base check of the complete file system, isn't it?

    BR Peter

  • 0 in reply to Peter Wein

    Hi  

    Would you please suggest about the process which you want to check in the background? Sorry I was not able to understand that part.

    We can do file system check but the above-mentioned step will clear the confusion whether the machine can work with both the products or has issue with them.

    Regards,

    Jasmin
    Community Support Engineer | Sophos Support
    Sophos Support Videos | Knowledge Base  |  @SophosSupport | Sign up for SMS Alerts |
    If a post solves your question use the 'This helped me' link

  • +1 in reply to Jasmin

    Hi Jasmin,

    • The way went right, first install Sophos then CyberghostVPN - it worked finally (no reboot till now, but I can surf via VPN and savscan is running in the background

    So that was also my question from my last post! What I find quite funny is that only savscan is avaliable as command, all other command must be found manually in the installation path of sophos in /opt/sophos-antivirus/bin.

    But I am happy now. It works. I hope after reboot

    • the process starts during bootup running in the background , I mean a command showing the task in task manager: 
      $ps aux | grep savscan
    • internet still works

    [EDIT] Yeah it completely works! After reboot, both and all programs!

    For Support, I know, I use the free version as an entry. But as I am also maintaining company servers It could be a good method to convince new customers. And that is why I am here in the community forum to stop with. Because I got no ordinary support. 

    Thanks Jasmin for your help!! That was good, not feeling alone in the woods! Knowing somebody who knows the product...

    BR

    Peter

Reply
  • +1 in reply to Jasmin

    Hi Jasmin,

    • The way went right, first install Sophos then CyberghostVPN - it worked finally (no reboot till now, but I can surf via VPN and savscan is running in the background

    So that was also my question from my last post! What I find quite funny is that only savscan is avaliable as command, all other command must be found manually in the installation path of sophos in /opt/sophos-antivirus/bin.

    But I am happy now. It works. I hope after reboot

    • the process starts during bootup running in the background , I mean a command showing the task in task manager: 
      $ps aux | grep savscan
    • internet still works

    [EDIT] Yeah it completely works! After reboot, both and all programs!

    For Support, I know, I use the free version as an entry. But as I am also maintaining company servers It could be a good method to convince new customers. And that is why I am here in the community forum to stop with. Because I got no ordinary support. 

    Thanks Jasmin for your help!! That was good, not feeling alone in the woods! Knowing somebody who knows the product...

    BR

    Peter

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