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IP Virtual Server

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IPVS
Operating systemLinux kernel
PlatformNetfilter
LicenseGNU General Public License
Websitewww.linuxvirtualserver.org/software/ipvs.html

IPVS (IP Virtual Server) implements transport-layer load balancing inside the Linux kernel, usually called Layer 4 LAN switching.

IPVS is incorporated into the Linux Virtual Server (LVS), where it runs on a host and acts as a load balancer in front of a cluster of real servers. IPVS can direct requests for TCP- and UDP-based services to the real servers, and make services of the real servers appear as virtual services on a single IP address. IPVS is built on top of the Netfilter.