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HAProxy - Load balancer
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Chad Lavoie 8d771110e0 BUG/MINOR: mux-h1: H2 preface rejection doesn't update stick-table glitches 
commit 72fd357814 ("MEDIUM: mux-h1: Return an error on h2 upgrade
attempts if not allowed") added an h1_report_glitch() call on the new
405 path but exits via "goto no_parsing", which skips the
session_add_glitch_ctr() call at the end of the parse block. As a
result fc_glitches increments correctly but the per-session stick
counters never see it, breaking sc_glitch_cnt-based rate limiting of
the H2-preface-over-H1 abuse pattern.

No backport needed beyond the branches that took 72fd357814.

[cf: Patch was edited to move the goto label instead of duplicating
     the call to session_add_glitch_ctr]
2026-05-27 10:53:00 +02:00
.github CI: github: add DEBUG_STRICT=2 to ASAN jobs 2026-04-30 17:46:30 +02:00
addons BUG/MINOR: addons/51d: NUL-terminate headers before passing them to Trie API 2026-05-26 13:13:24 +02:00
admin CLEANUP: fix typos and spelling in comments and documentation 2026-03-30 09:24:19 +02:00
dev CLEANUP: fix typos and spelling in comments and documentation 2026-03-30 09:24:19 +02:00
doc [RELEASE] Released version 3.4-dev14 2026-05-26 21:56:40 +02:00
examples MEDIUM: mux_quic: rename qmux traces to qcm 2026-05-13 16:23:58 +02:00
include BUG/MEDIUM: h1-htx: Sanitize parsing to properly handle upgrade requests 2026-05-26 18:28:07 +02:00
reg-tests BUG/MINOR: h1: Don't mask websocket protocol if multiple protocols used 2026-05-19 17:50:50 +02:00
scripts SCRIPTS: announce-release: add a link to the OpenTelemetry filter 2026-05-08 12:05:09 +02:00
src BUG/MINOR: mux-h1: H2 preface rejection doesn't update stick-table glitches 2026-05-27 10:53:00 +02:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-3 2025-10-09 14:06:48 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
BRANCHES CLEANUP: tree-wide: fix typos in user-invisible files 2026-05-13 17:03:48 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.4-dev14 2026-05-26 21:56:40 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL DOC: update supported gcc and openssl versions in INSTALL 2026-05-20 17:45:23 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile BUILD: traces: add USE_TRACE allowing to disable traces 2026-05-20 11:46:43 +02:00
README.md CI: github: add cross-zoo.yml in README.md 2026-04-20 11:47:20 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.4-dev14 2026-05-26 21:56:40 +02:00
VERSION [RELEASE] Released version 3.4-dev14 2026-05-26 21:56:40 +02:00

README.md

HAProxy

AWS-LC Illumos NetBSD CrossCompile FreeBSD VTest

HAProxy logo

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Installation

The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.

Getting help

The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.

The issue tracker is only for bug reports or feature requests.

Documentation

The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.

Please refer to the following files depending on what you're looking for:

  • INSTALL for instructions on how to build and install HAProxy
  • BRANCHES to understand the project's life cycle and what version to use
  • LICENSE for the project's license
  • CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory:

License

HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.