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  1. #1

    Linux Server Administration


    Hello,

    My name is Nedzhip, I'm 34 yrs old and is working as a Windows Server Administrator since 12 years.
    The problem is the company I'm working for decided to move to LINUX. They just started to translate current site from asp to php and mssql to mysql, the move will be 3 months later, this means if I don't learn Linux Server Administration within 3 months I will lose my job

    I just installed an CentOS to a virtual machine and started to training on it.
    Not so long after I just learned the basic commands and managed to install and configure the required servers. There is no problem till there.

    The problem is the security part I have no clue what are the security vulnerabilities in Linux, how is the update system working, what's the most vulnerable and exploited things and so on.
    Do I have to install antivirus, and if there are any companies offering good antivirus for the Linux system.
    Overall I know nothing about the security part.

    What I'm asking for is a book or any other source for Linux Server administration especially for security part, since I'm finding my way with tutorials etc. about the other things.

    Thank you in advance, and sorry for my bad English!

  2. #2
    Linux Engineer hazel's Avatar
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    Linux doesn't have viruses (at least there are none in the wild) but there are occasional worms and program bugs and it is also possible to hack in if you don't have a firewall or haven't configured things properly. The Linux firewall is called iptables and you will want to read up on how to configure that.

    You will need an antivirus only if you have Windows machines in the network or share files with Windows users. The program most users recommend is called ClamAV.

    Updating Linux is pretty safe as all the software comes from a guarded repository and is installed by your package manager (for Centos that would be yum). You should update frequently (say once a week) to keep up with security fixes. Security holes are usually fixed very quickly in Linux once they are discovered.

    There are quite a few people here who use Centos and I'm sure they'll point you in the right direction when it comes to literature.
    "I'm just a little old lady; don't try to dazzle me with jargon!"
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  3. #3
    Out of curiosity, how do the CentOS people, or for that matter any other distro, make sure that software from the repos isn't spying on you or deleting stuff or whatever....? Is it actually checked by a machine? Like, as soon as someone uploads something? I find that to be an AMAZING concept!

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  5. #4
    By the way, Nedzhip, there is a book called "Gray hat hacking" which covers Linux, I think it recently released its 4th edition.

    You work for a great company! Welcome to Linux!

  6. #5
    Linux Guru Rubberman's Avatar
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    CentOS is a very popular enterprise server for many big companies, including mine. It is a clone of Red Hat Enterprise Linux, but has no subscription fees. There are tonnes of documentation on the Red Hat web site on all of these topics, and you can freely access them (no charge). Also, you should be able to find a lot of other documentation with a simple Google search. For further linux documentation, to the The Linux Documentation Project web site: The Linux Documentation Project
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  7. #6
    Linux Guru Lakshmipathi's Avatar
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    Quote Originally Posted by NDZ View Post
    Hello,

    The problem is the company I'm working for decided to move to LINUX.
    Welcome to LFo! First of all, why see this as problem? Linux is Fun


    this means if I don't learn Linux Server Administration within 3 months I will lose my job
    I don't think you need to worry about it, most people good with either with Linux or Windows, but not both. Now you are taking steps to understand Linux, your windows server experience will help to
    understand things more quickly than others!

    What I'm asking for is a book or any other source for Linux Server administration especially for security part, since I'm finding my way with tutorials etc. about the other things.
    You are already chosen right distro (CentOS) , its clone of Redhat. I would recommend you to play with Redhat document

    For security guide check this :
    https://www.nsa.gov/ia/_files/os/red...guide_v4.2.pdf

    The most important thing when it comes to Security on RPM based distro like Redhat/Centos/Fedora is "SElinux". Its a complex beast, If you master it, you don't need to worry about
    anything!

    Other docs
    https://access.redhat.com/documentat...nux/index.html

    HTH

    and sorry for my bad English!
    me too
    First they ignore you,Then they laugh at you,Then they fight with you,Then you win. - M.K.Gandhi
    -----
    FOSS India Award winning ext3fs Undelete tool www.giis.co.in. Online Linux Terminal http://www.webminal.org

  8. #7
    -->
    Quote Originally Posted by NDZ View Post
    The problem is the company I'm working for decided to move to LINUX. They just started to translate current site from asp to php and mssql to mysql, the move will be 3 months later, this means if I don't learn Linux Server Administration within 3 months I will lose my job
    Whell let me know if u want im starting red hat enterprise archetect asap 3000$ course
    I to think linux is fun

    sent using tapatalk on my android phone

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