the director to connect to network of real IP addresses CIP (Client IP address): the IP address assigned to a client computer, that it uses as the source IP address for requests being sent to the cluster Examples Setting up a virtual HTTP server with two real servers: ipvsadm -A -t 192.168.0.1:80 -s rr ipvsadm -a -t 192.168.0.1:80 -r 172.16.0.1:80 -m ipvsadm -a -t 192.168.0.1:80 -r 172.16.0.2:80 -m The 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). Querying the status of the above configured LVS setup: # ipvsadm -L -n IP Virtual Server version 1.0.8 (size=65536) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 192.168.0.1:80 rr -> 172.16.0.2:80 Masq 1 3 1 -> 172.16.0.1:80 Masq 1 4 0 See also IP Virtual Server Netfilter and nftables Network scheduler References External links Linux Virtual Server Configuration Wiki IBM eServer BladeCenter, Linux, and Open Source: Blueprint for e-business on demand (includes LVS as a component) High-availability cluster computing Free network-related software Internet software for Linux Linux-only free software Parallel computing