Port Forwarding Help

Discussion in 'Server Security' started by Kyle Lindeque, Apr 15, 2012.

  1. Kyle Lindeque

    Kyle Lindeque New Member

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    Hi,

    I recently setup a gaming server.
    However I have now returned to university, and am unable to connect to it because of the universities firewall in my residence hall. I am wanting to setup port forwarding, so that the following:
    a) people connecting on the default port (25565) are unaffected
    b) using an alternate port, 8080, such that I will be able to connect and have the server internally router it to 25565.

    Is this possible? If so, can someone advise me as to what NAT rules I should setup in IPTables.

    Thanks.

  2. Rob

    Rob Administrator Staff Member

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    Ok, so the university's firewall won't let you connect out to 25565 on the remote server?

    And, the game server is the remote iptables firewall that you want to modify...

    Code:
    iptables -t nat -A PREROUTING -p tcp --dport 8080 -j REDIRECT --to-port 25565
    
    Give that a shot :)
  3. Kyle Lindeque

    Kyle Lindeque New Member

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    AHHHH Thank you for helping me defeat "The System". I can connect again! :eek:
  4. Rob

    Rob Administrator Staff Member

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  5. ashishagarwal

    ashishagarwal New Member

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    Ip table is the great way to stop any tampering

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