The main goal of the keepalived project is to add a strong & robust keepalive facility to the Linux Virtual Server project. It implements a multilayer TCP/IP stack checks. Keepalived implements a framework based on three family checks : Layer3, Layer4 & Layer5. This framework gives the daemon the ability of checking a LVS server pool states. Keepalived can be sumarize as a LVS driving daemon.

Keepalived implementation is based on an I/O multiplexer to handle a strong multi-threading framework. All the events process use this I/O multiplexer.

Keepalived is free software, Copyright (C) Alexandre Cassen. See the file COPYING for copying conditions.

OPENSSL TOOLKIT LICENCE EXCEPTION

In addition, as the copyright holder of Keepalived, I, Alexandre Cassen, [email protected], grant the following special exception:

    I, Alexandre Cassen, <[email protected]>, explicitly allow
    the compilation and distribution of the Keepalived software with
    the OpenSSL Toolkit.