12 lines
729 B
Markdown
12 lines
729 B
Markdown
# keepalived
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The main goal of the keepalived project is to add a strong end robust keepalive facility to the Linux Virtual Server project.
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This project is written in C with multilayer TCP/IP stack checks.
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Keepalived implements a framework based on three family checks:
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Layer3, Layer4 & Layer5.
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This framework gives the daemon the ability of checking a LVS server pool states.
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When one of the server of the LVS server pool is down, keepalived informs the linux kernel via a setsockopt call to remove this server entrie from the LVS topology.
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In addition keepalived implements a VRRPv2 stack to handle director failover.
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So in short keepalived is a userspace daemon for LVS cluster nodes healthchecks and LVS directors failover.
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