Linux Virtual Server
ipvsadm -a -t 192.168.0.1:80 -r 172.16.0.2:80 -mThe first command assigns TCP port 80 on IP address 192.168.0.1 to the virtual server.  The chosen scheduling algorithm for load balancing is round-robin (-s rr).  The second and third commands are adding IP addresses of real servers to the LVS setup.  The forwarded network packets shall be masked (-m).