volny_lvs

Jak pracuje LVS-NAT na volny.cz:

                        ________
                       |        |
                       | client |
                       |________|
                    CIP=172.20.100.x
                           |
                           |
             __________    |
            |   lvs    |   |   VIP=172.20.100.69 (eth0:0)
            | director |---|
            |__________|   |   DIP=172.20.100.118 (eth0)
                           |
                           |
          ------------------------------------
          |                |                 |
          |                |                 |
RIP1=172.20.100.64  RIP2=172.20.100.65  RIP3=172.20.100.66 (default GW 172.20.100.118)
    _____________      _____________     _____________
   |     sa1     |    |     sa2     |   |    sa3      |
   | realserver  |    | realserver  |   | realserver  |
   |_____________|    |_____________|   |_____________|


Na všech real servers:
echo "route del -net 172.20.100.0 netmask 255.255.255.0 dev eth0" >> /etc/rc.local

Na lvs serveru:
echo "net.ipv4.conf.all.send_redirects = 0" >> /etc/sysctl.conf
echo "net.ipv4.conf.default.send_redirects = 0" >> /etc/sysctl.conf
echo "net.ipv4.conf.eth0.send_redirects = 0" >> /etc/sysctl.conf