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HAProxy - Load balancer
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Released version 3.4-dev13 with the following main changes :
- BUG/MINOR: backend: correct parameter value validation in get_server_ph_post()
- BUG/MINOR: config/dns: properly fail on duplicate nameserver name detection
- BUG/MEDIUM: dns: fix long loops in additional records parse on name failure
- BUG/MEDIUM: resolvers: fix name compression pointer validation in resolv_read_name()
- BUG/MEDIUM: dns: fix memory leak of sockaddr in dns_session_init() error path
- CLEANUP: proxy: fix tiny mistakes in parse error messages
- CLEANUP: dns: fix misleading error messages in dns_stream_init()
- BUG/MINOR: server: better handling of OOM in srv_set_fqdn()
- BUG/MINOR: servers: use proper source of pool_conn_name in srv_settings_cpy()
- BUG/MEDIUM: server/cli: unlock server lock on failure in cli_parse_set_server
- BUG/MINOR: resolvers: fix dangling list pointer in resolvers_new() error paths
- BUG/MINOR: dns: fix dangling dgram pointer on dns_dgram_init() failure path
- BUG/MINOR: proxy: use proxy_drop() in parse_new_proxy() error path
- CLEANUP: resolvers: properly initialize the sample in resolv_action_do_resolve()
- BUG/MINOR: resolvers: report the expression error in the do-resolve() action parser
- BUG/MINOR: resolvers: fix leaked dgram and dns_ring struct in parse_resolve_conf()
- BUG/MINOR: resolvers: fix leaked fields on cfg_parse_resolvers() error paths
- BUG/MINOR: resolvers: fix missing task_idle destruction in resolvers_destroy()
- CLEANUP: proxy: fix duplicate declaration of cli_find_frontend in proxy.h
- CLEANUP: address a few typos and copy-paste errors in httpclient and dns
- DOC: internal: add a few rules about internal core principles
- BUG/MINOR: session/trace: use distinct flags for SESS_EV_END and _ERR
- CLEANUP: stick-table: uniformize the different action_inc_gpc*()
- REGTESTS: do not run quic/tls13_ssl_crt-list_filters in quic openssl compat mode
- REGTESTS: quic/issuers_chain_path: do not forget to enable QUIC compat mode
- BUG/MINOR: sock: store the connection error status
- BUG/MINOR: check: properly report errno in chk_report_conn_err()
- CLEANUP: tcpcheck: mention that we're a bit far for a sync errno
- BUG/MINOR: jwt: fix possible memory leak in convert_ecdsa_sig() error path
- CLEANUP: jwe: fix theoretical overflow in AAD length calculation
- DOC: config: further clarify that resolvers "default" exists
- MINOR: proxy: remove the experimental status on dynamic backends
- BUG/MEDIUM: limits: properly account for global.maxpipes in compute_ideal_maxconn()
- BUG/MINOR: jws: fix OpenSSL 3.0 version check from > to >=
- BUG/MINOR: jws: Add missing return value check (EVP_PKEY_get_bn_param)
- BUG/MINOR: server: Properly handle init-state value during haproxy startup
- BUG/MINOR: httpclient-cli: Destroy http-client context if failing to start it
- BUG/MEDIUM: h1: Skip all h2c values from Upgrade headers during parsing
- BUG/MINOR: h1: Don't mask websocket protocol if multiple protocols used
- MINOR: haterm: Don't init haterm master pipe if not used
- CLEANUP: haterm: Remove "(too old kernel)" from warning message during init
- BUG/MINOR: httpclient-cli: fix uninit variable in error label
- MINOR: mux: Rename the "token" from mux_proto_list to mux_proto
- MEDIUM: connections: Use both mux_proto and alpn to pick a mux
- MINOR: connection: define conn_select_mux_fe()
- MINOR: connection: define conn_select_mux_be()
- MINOR: connection/mux_quic: add MUX <init_xprt> field for QMux handshake
- MINOR: proxy/server: reject TCP ALPN h3 without experimental
- MEDIUM: ssl: allow h3/QMux negotiation without explicit proto
- BUG/MINOR: server: accept server IDs above 2^31 and clarify error message
- BUG/MINOR: backend: fix balance hash calculation when using hash-type none
- MINOR: server: support hash-key id32 for a cleaner distribution
- MINOR: backend: support hash-key guid for a stabler distribution
- MINOR: startup: support unprivileged chroot if possible
- MEDIUM: startup: add automatic chroot feature
- MINOR: h2: explain committed_extra_streams dec on h2_init() error
- OPTIM: h2: do not update committed streams if elasticity disabled
- MINOR: mux_quic: implement basic committed_extra_streams accounting
- MINOR: quic: use stream elasticity value for initial advertisement
- MINOR: mux_quic: define ms_bidi_rel QCC member
- MAJOR: mux_quic: support stream elasticity during connection lifetime
- BUG/MEDIUM: servers: Store the connection hash with the parameter cache
- BUG/MINOR: prevent conn leak in case of xprt_qmux init failure
- BUILD: traces: set a few __maybe_unused on vars used only for traces
- BUILD: traces: add USE_TRACE allowing to disable traces
- MINOR: startup: do not execute chroot() when "/"
- MEDIUM: startup: warn when chroot is not set for root
- BUG/MEDIUM: servers: Don't forget to set srv_hash when needed
- DOC: fix typo on QUIC stream.max-concurrent reference
- BUG/MINOR: mux_quic: do not exceed stream.max-concurrent on backend side
- BUG/MINOR: htx: Fix value of HTX_XFER_HDRS_ONLY flag
- MEDIUM: htx: Improve htx_xfer API to not count HTX meta-data
- BUG/MEDIUM: applet: Fix transfer of HTX data to the applet
- BUG/MEDIUM: htx: Alloc a chunk of right size in htx_replace_blk_value()
- MEDIUM: stick-tables: Avoid freeing elements while holding a lock
- MINOR: intops: add a multiply overflow detection for ulong and size_t
- CLEANUP: tree-wide: use array_size_or_fail() in array size for allocations
- DOC: update supported gcc and openssl versions in INSTALL
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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.