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manual iptables entries

Discussion in 'Plesk for Linux - 8.x and Older' started by jag7720, Aug 12, 2009.

  1. jag7720

    jag7720 Guest

    The company that I lease my server from has made changes on their network that does not allow a single NIC to have two or more MAC addresses.

    I run a VM Host on my server. My guest OS can no longer reach the world. The Hosting company says I need to add rules to my iptables... problem is, the kind of rules i need to add are not available in the PLESK CP...

    echo 1 /proc/sys/net/ipv4/ip_forward
    sysctl -w net.ipv4.ip_forward=1
    iptables -t nat -A PREROUTING -d EXT-IP -i eth0 -j DNAT --to-destination PRIVATE-IP
    iptables -t nat -A POSTROUTING -s PRIVATE-IP -o eth0 -j SNAT --to-source EXT-IP
    iptables -P FORWARD ACCEPT

    if I add the rules to the system, PLESK will overwrite them at will.

    How can I add manual rules to the iptables when PLESK stores them in the database in a binary blob?