IP Virtual Server

From Wikipedia, the free encyclopedia
Stable release
1.3.1 / December 24, 2019; 3 years ago (2019-12-24)
Operating systemLinux kernel
LicenseGNU General Public License

IPVS (IP Virtual Server) implements transport-layer load balancing, usually called Layer 4 LAN switching, as part of the Linux kernel. It's configured via the user-space utility ipvsadm(8) tool.

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.[1]

IPVS is merged into versions 2.4.x and newer of the Linux kernel mainline.[1]

See also[edit]


  1. ^ a b "IPVS Software - Advanced Layer-4 Switching". linuxvirtualserver.org. 2011-02-08. Retrieved 2013-11-24.

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