b63cae7f9b
Commit c84c15d3938a ("BUG/MINOR: resolvers: Apply dns-accept-family
setting on additional records") converted a switch statement to an
if/else chain but left the break; in the AAAA branch. In the new
form, break exits the surrounding for loop instead of a switch case.
For every AAAA additional record in an SRV response:
- answer_record allocated at line 1460 is never freed and never
inserted into answer_tree -> ~580 bytes leaked per response
- all subsequent additional records in the response are silently
discarded
A DNS server controlling SRV responses for haproxy service discovery
can leak memory at MB/min rates given default resolution intervals.
Also breaks IPv6 SRV target resolution outright since the AAAA record
is leaked rather than attached to its SRV entry.
HAProxy
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:
- 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)
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.