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  1. #1

    How to block ethernet card access to an user in RHEL

    Is there a possibility to block access to ethernet card (say eth0) to block network access for an user? And how it can be done?

    If above is not possible, can we block network access for a normal user on a linux box?

    Thanks in advance

  2. #2
    Just Joined!
    Join Date
    Aug 2009
    Quote Originally Posted by vnykr View Post
    can we block network access for a normal user on a linux box?
    Either GRSecurity kernel patch, IIRC it has got a sysctl for denying network access, or more generic: using the iptables "owner" module.

  3. #3
    Requirement is that, i need to block network access for just one user and rest all should be able to access network.
    sysctl looks like blocking at kernel level and not at user level. (correct me if i am wrong)

    Can you please suggest any commands? or series of commands? where i can run just for particular username..

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  5. #4
    Linux Guru Lazydog's Avatar
    Join Date
    Jun 2004
    The Keystone State
    Have a look at this

    Block Outgoing Network Access For a Single User Using Iptables

    Google is your friend, you should learn how to use it.


    The adventure of a life time.

    Linux User #296285
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