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HAProxy - Load balancer
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Emeric Brun a9363eb6a5 BUG/MEDIUM: ssl: 'tune.ssl.default-dh-param' value ignored with openssl > 1.1.1 
If openssl 1.1.1 is used, c2aae74f0 commit mistakenly enables DH automatic
feature from openssl instead of ECDH automatic feature. There is no impact for
the ECDH one because the feature is always enabled for that version. But doing
this, the 'tune.ssl.default-dh-param' was completely ignored for DH parameters.

This patch fix the bug calling 'SSL_CTX_set_ecdh_auto' instead of
'SSL_CTX_set_dh_auto'.

Currently some users may use a 2048 DH bits parameter, thinking they're using a
1024 bits one. Doing this, they may experience performance issue on light hardware.

This patch warns the user if haproxy fails to configure the given DH parameter.
In this case and if openssl version is > 1.1.0, haproxy will let openssl to
automatically choose a default DH parameter. For other openssl versions, the DH
ciphers won't be usable.

A commonly case of failure is due to the security level of openssl.cnf
which could refuse a 1024 bits DH parameter for a 2048 bits key:

 $ cat /etc/ssl/openssl.cnf
 ...

 [system_default_sect]
 MinProtocol = TLSv1
 CipherString = DEFAULT@SECLEVEL=2

This should be backport into any branch containing the commit c2aae74f0.
It requires all or part of the previous CLEANUP series.

This addresses github issue #324.
2019-10-18 15:18:52 +02:00
.github/ISSUE_TEMPLATE DOC: Add 'Question.md' issue template, discouraging asking questions 2019-08-02 19:11:41 +02:00
contrib DOC: fix typo in Prometheus exporter doc 2019-10-09 04:38:15 +02:00
doc BUG/MINOR: tcp: Don't alter counters returned by tcp info fetchers 2019-10-17 15:20:06 +02:00
ebtree BUILD: ebtree: make eb_is_empty() and eb_is_dup() take a const 2019-10-02 15:24:19 +02:00
examples CLEANUP: removed obsolete examples an move a few to better places 2019-06-15 21:25:06 +02:00
include BUG/MEDIUM: task: make tasklets either local or shared but not both at once 2019-10-18 09:04:55 +02:00
reg-tests REGTEST: mcli/mcli_show_info: launch a 'show info' on the master CLI 2019-10-18 14:47:30 +02:00
scripts BUILD: CI: install golang-1.13 when building BoringSSL 2019-09-17 13:52:39 +02:00
src BUG/MEDIUM: ssl: 'tune.ssl.default-dh-param' value ignored with openssl > 1.1.1 2019-10-18 15:18:52 +02:00
tests TESTS: Add a stress-test for mt_lists. 2019-09-23 18:16:08 +02:00
.cirrus.yml BUILD: CI: skip reg-tests/connection/proxy_protocol_random_fail.vtc on CentOS 6 2019-09-08 12:10:32 +02:00
.gitignore DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
.travis.yml BUILD: travis-ci: limit build to branches "master" and "next" 2019-10-17 06:53:55 +02:00
BRANCHES DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
CHANGELOG [RELEASE] Released version 2.1-dev2 2019-10-01 18:13:09 +02:00
CONTRIBUTING DOC: improve the wording in CONTRIBUTING about how to document a bug fix 2019-07-26 15:46:21 +02:00
INSTALL MINOR: build: add linux-glibc-legacy build TARGET 2019-09-01 17:28:10 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS DOC: wurfl: added point of contact in MAINTAINERS file 2019-04-23 11:00:23 +02:00
Makefile BUILD/MEDIUM: threads: enable cpu_affinity on osx 2019-10-17 07:20:58 +02:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
ROADMAP DOC: update the outdated ROADMAP file 2019-06-15 21:59:54 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.1-dev2 2019-10-01 18:13:09 +02:00
VERSION [RELEASE] Released version 2.1-dev2 2019-10-01 18:13:09 +02:00

README 

The HAProxy documentation has been split into a number of different files for
ease of use.

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 :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)