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  1. #1
    Join Date
    Nov 2016
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    Cape Canaveral
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    Virusware for Linux

    Guys,

    With the current version of Fedora\RHEL:

    1. Do you feel Linux systems need virus prevention software?
    2. If yes which do you feel is the bare essential(s)?


    Thanks,

    Michael

  2. #2
    Join Date
    Jul 2005
    Age
    57
    Posts
    1,193

    Re: Virusware for Linux

    If you're running a mail server that sends mail to Windows clients, then ClamaAV or other virus scanner is useful. Use Security Enhanced Linux. Disable unneeded services (both for speed and to reduce your attack service). After that, it really comes down to your exposure to the net that is under your control (unless someone is targeting you specifically). uMatrix and ghostery are two good plugins that are available on most browsers. Only enabling the minimum number of scripts that allow a website to display its content will go a long way in reducing the threat to your information and the information collected about you. That would be bare essentials. If you want to get more paranoid, do all your internet work from a virtual machine that you can image back to a sane state without problems if something escapes the browser. Do all of your critical financial operations from a separate "clean" virtual machine (one per institution if you'd like). VMs can be made small if you start with a minimal install and just add what is needed to do the specific application you want to do. Apply all updates and reboot as needed for kernel, kmod, or C library updates.

  3. #3
    Join Date
    Jul 2004
    Location
    Wake Forest, NC
    Age
    64
    Posts
    1,428

    Re: Virusware for Linux

    Not so much that Linux "needs" virus protection itself, but remember that our Linux systems don't exist in a vacuum. Mail moves in and out through our systems, and we use web browsers. If nothing else, it protects the Windows users with whom we correspond. I use ClamAV as it is in the Fedora repositories and seems to be adequate for the task.
    StephenH

    "We must understand the reality that just because our culture claims certain things are true it does not mean they are!" --M. Liederbach

    http://pilgrim-wanderings.blogspot.com

  4. #4
    Join Date
    Aug 2016
    Location
    Iraq
    Posts
    787

    Re: Virusware for Linux

    After many stands at this issue, I reach to the following result:

    Linux - provided you do not install WineHQ - need no antivirus provided you use very strong password for your system. In this case the only risk for Linux is root kit which is really really very dangerous threat (really destroy your system).

    To protect your system from root kit, one of the following should be used:

    1) disable all script, except for very very trusted sites (very bad option)

    2) use VPN for ALL your Internet works & activities (to me is the best option)

    3) use grsecurity (paid option)

    4) use Alpine Linux distros (non official grsecurity - free)

    5) use linux-hardened (still not complete tool)
    Fedora 26 X64 bit Cinnamon edition on Lenovo ThinkPad e550 with Intel core i7 5500 CPU @ 2.40 GH X 2, RAM = 8 GB, HHD = 1 TB, Hybrid VGA (Intel Corporation HD Graphic 5500 + Radeon R7 M265 2GB)

  5. #5
    Join Date
    Jul 2005
    Age
    57
    Posts
    1,193

    Re: Virusware for Linux

    One thing I would add about ClamAV is that its virus updates aren't pushed as fast as other virus products are. If you can greylist and your users will put up with it, you can both reduce your spam load drastically, and have a better chance of actually catching viruses with ClamAV instead of having your Window's user base already pulling their mail by the time ClamAV is updated. You can do some automated whitelisting using the mail logs to ensure that most people your users interact with aren't greylisted, but this takes some scripting.

  6. #6
    Join Date
    Nov 2016
    Location
    Cape Canaveral
    Posts
    29

    Re: Virusware for Linux

    I am convinced this forum has the sharpest most passionate Linux techs. Thanks for all the great suggestions!

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