Keepalived is a routing software written in C. The main goal of this project is to
provide simple and robust facilities for loadbalancing and high-availability to Linux
system and Linux based infrastructures. Loadbalancing framework relies on well-known
and widely used Linux Virtual Server (IPVS)
kernel module providing Layer4 loadbalancing. Keepalived implements a set of checkers
to dynamically and adaptively maintain and manage loadbalanced server pool according
their health. On the other hand high-availability is achieved by
VRRP protocol. VRRP is a
fundamental brick for router failover. In addition, Keepalived implements a set of
hooks to the VRRP finite state machine providing low-level and high-speed protocol
interactions. In order to offer fastest network failure detection,
Keepalived implements BFD protocol.
VRRP state transition can take into account BFD hint to drive fast state transition.
Keepalived frameworks can be used independently or all together to
provide resilient infrastructures.
Keepalived is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.
What is Keepalived ?
RESOURCES
Keepalived main website doesn't offer package for any Linux distribution, it only
provides source code and code repository. Most of Linux distribution are offering
Keepalived package as a mainline package and package maintainers are making a great
job maintaining and reporting issues about it.
HOT TOPICS !
[June 13, 2020]
Keepalived version 2.1.0 is out. There is lot of improvements and hardwork
revisiting the whole code to make it even stronger. This release target
carrier-grade quality and requirements. We also changed the release process
to replace previous one by Release Notes.
|
[January 22, 2020]
Keepalived version 2.0.20 is out ! We are happy to announce it to be really
really STABLE after strong debugging iterations done during last year. We
are now going to push some new features and extensions.
|
[July 26, 2019]
Honored to be referenced by VA Technical Reference Model of U.S. Dept of Veterans Affairs.
|
[May 26, 2019]
Created Keepalived Twitter Account.
Will publish release announces and updates.
|
[May 24, 2019]
Created Keepalived Users Group
at Groups.io. This group will replace old SourceForge Keepalived mailing list
(keepalived-devel and keepalived-announce). Unfortunately I cant relocate current
membership to new Group since SF removed this feature.
|
[May 16, 2019]
Design a new LOGO for Keepalived. You can access LOGO here
or in the download section. |
[October 21, 2018]
This short note to encourage every package mainteners to update keepalived
distro package. Most of current version shipped with major distro are stuck
to 1.3.X release. Keepalived code present in git master branch must be
considered as stable and futur proof. We do not backport bugfixes and
extensions to previous release, dev circle is an allways forward release
process. So you are strongly encouraged to upgrade to last 2.X release which
provides extensive work, extensions and bugfixes. |
[May 26, 2018]
Dear Keepalived Users and companies using it. Keepalived Core-Team has just
released MAJOR release with version code 2.0.0. This Release is the fruit of
around 2years of hard work and we would appreciate your feedback and
broadcast this announce all over. This release enhance lots of software
components targetting high performances. Thanks for your attention &
support.-- Alexandre |