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-------------------------------------------------------------------------------- Hi all! I am new here also new to ubuntu so if the following might sound stupid pls bear with me :P I have setup a PC with two ...
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  1. #1
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    Cannot ping my ubuntu PC


    --------------------------------------------------------------------------------

    Hi all!
    I am new here also new to ubuntu so if the following might sound stupid pls bear with me :P

    I have setup a PC with two network cards and installed ubuntu 8.04, and also another PC with XP SP2 with also two network cards. The setup is more or less like this:

    PRIVATE IP No.1 -------- UBUNTU PC -------- PRIVATE IP -- NETWORK
    |
    | < cross over cable
    |
    PRIVATE IP No.1 -------- XP SP2 PC -------- PRIVATE IP -- NETWORK

    I can ping FROM the ubuntu to the XP but CANNOT from the xp to the ubuntu.....

    can you pls help??? Thanks!!

  2. #2
    Linux Newbie
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    It must have something to do with the gateways. Try putting the IP of the Ubuntu PC as gateway in the Windows machine.

  3. #3
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    not really as the gateway on the window xp machine is the ubuntu ip and vice versa....

  4. #4
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    Have you made any changes to iptables in Ubuntu or have installed a firewall that is configured not to allow being pinged?

  5. #5
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    I have installed :


    all updates to date
    dansguardian
    firehol
    tinyproxy


    as i said i am a newbie....how can i know if firewall is enabled??

  6. #6
    Administrator jayd512's Avatar
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    You should be able to check the status of your firewall from the terminal. Execute
    Code:
    service iptables status
    Then you should look into some info on iptables. I'll see if I can come up with a link for you...
    Jay

    New users, read this first.
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    I do not respond to private messages asking for Linux help. Please keep it on the public boards.

  7. #7
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    I be be grateful.

    Thanks!

  8. #8
    Administrator jayd512's Avatar
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    Jay

    New users, read this first.
    New Member FAQ
    Registered Linux User #463940
    I do not respond to private messages asking for Linux help. Please keep it on the public boards.

  9. #9
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    Sorry for asking too much

    What exactly are IP tables? is it like a routing table?

    What should I look for if the IPs are correct (since I can ping from the ubuntu pc to the xp one) ?

  10. #10
    Linux Newbie
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    Iptables is THE Linux firewall. Firehol is "an iptables stateful packet filtering firewall builder for Linux", as it is mentioned on its site. This means that firehol lets you configure iptables in an easier way. So you must edit the configuration file.
    sudo gedit /etc/firehol/firehol.conf
    There you must have something like server "ping" accept
    See this link for more help Setting Up An Iptables Firewall On Ubuntu With Firehol | HowtoForge - Linux Howtos and Tutorials
    Since you are a new user, i suggest you uninstall firehol and install firestarter, which has a gui and is easier to use.
    sudo apt-get remove firehol
    sudo apt-get install firestarter

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