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I am newbie to linux and last night i installed APF firewall in my server. Actually i dont know whether it is working or not. how to find out generally ...
  1. 11-26-2007 #1
    olddocks
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    Exclamation How to find out firewall working or not?



    I am newbie to linux and last night i installed APF firewall in my server. Actually i dont know whether it is working or not. how to find out generally firewall is working or not?

    Thanks
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  2. 11-26-2007 #2
    RobinVossen
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    Well this is one of the oldest Questions in the book.
    First portscan it.
    Then you can test it with hping.

    Portscan will show what is open and what closed.
    And with hping you can check more advanced stuff like only SYN packages are allowed or not.

    Hope that helped.
    Cheers,
    Robin
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  3. 11-26-2007 #3
    Lazydog
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    You could also look at them with this:

    Code:
    iptables -L -v -n | less -SCi

    Regards
    Robert

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