i’m not gonna wasting time, here’s how to do it
Download xtables-addons
# wget http://downloads.sourceforge.net/project/xtables-addons/Xtables-addons/1.20/xtables-addons-1.20.tar.bz2?use_mirror=waix
install kernel-devel kernel-headers iptables-devel gcc
# yum -y install kernel-devel kernel-headers iptables-devel gcc
extract xtables-addons-1.20.tar.bz2
# tar xjf xtables-addons-1.20.tar.bz2
cd to xtables-addons-1.20 directory
# cd xtables-addons-1.20
This is the scheme
e.g:
I got 5 Public IPs. i’m Gonna configure them, so Postfix can use multiple interfaces/ips for outgoing smtp connections.
First we need creating Interface aliases for those 5 public IPs.
In my system, using fedora:
# cd /etc/sysconfig/network-scripts/ # cp ifcfg-eth0 ifcfg-eth0:1
Edit ifcfg-eth0:1
# vi ifcfg-eth0\:1 DEVICE=eth0 <-- default device HWADDR=XX:XX:XX:XX:XX:XX ONBOOT=yes TYPE=Ethernet BOOTPROTO=none IPADDR=202.XXX.XX.2 <-- default eth0 IP address PREFIX=24 GATEWAY=202.XXX.XX.1 DNS1=202.XXX.XX.XX
Change DEVICE and IPADDR parameters
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