最流行的HTTP服务器软件之一.快速、可靠、可通过简单的API扩展,Perl/Python解释器可被编译到服务器中,完全免费,完全源代码开放.
如果你需要创建一个每天有数百万人访问的Web服务器,Apache可能是最佳选择.

下载:Apache HTTP Server 2.2.9 for Windows (9.38 MB)
下载: Apache HTTP Server 2.2.9 for Linux(4.71 MB)

Changes with Apache 2.2.9

  *) SECURITY: CVE-2008-2364 (cve.mitre.org)
     mod_proxy_http: Better handling of excessive interim responses
     from origin server to prevent potential denial of service and high
     memory usage. Reported by Ryujiro Shibuya. [Ruediger Pluem,
     Joe Orton, Jim Jagielski]

  *) SECURITY: CVE-2007-6420 (cve.mitre.org)
     mod_proxy_balancer: Prevent CSRF attacks against the balancer-manager
     interface.  [Joe Orton]

  *) core: Fix address-in-use startup failure on some platforms caused
     by creating an IPv4 listener which overlaps with an existing IPv6
     listener.  [Jeff Trawick]

  *) mod_proxy: Make all proxy modules nocanon aware and do not add the
     query string again in this case. PR 44803.
     [Jim Jagielski, Ruediger Pluem]

  *) mod_unique_id: Fix timestamp value in UNIQUE_ID.
     PR 37064 [Kobayashi <kobayashi firstserver.co.jp>]

  *) htpasswd: Fix salt generation weakness. PR 31440
     [Andreas Krennmair <ak synflood.at>, Peter Watkins <peterw tux.org>,
     Paul Querna]

  *) core: Add the filename of the configuration file to the warning message
     about the useless use of AllowOverride. PR 39992.
     [Darryl Miles <darryl darrylmiles.org>]

  *) scoreboard: Remove unused proxy load balancer elements from scoreboard
     image (not scoreboard memory itself).  [Chris Darroch]

  *) mod_proxy: Support environment variable interpolation in reverse
     proxying directives. [Nick Kew]

  *) suexec: When group is given as a numeric gid, validate it by looking up
     the actual group name such that the name can be used in log entries.
     PR 7862 [<y-koga apache.or.jp>, Leif W <warp-9.9 usa.net>]

  *) Fix garbled TRACE response on EBCDIC platforms.
     [David Jones <oscaremma gmail.com>]

  *) ab: Include <limits.h> earlier if available since we may need
     INT_MAX (defined there on Windows) for the definition of MAX_REQUESTS.
     PR 45024 [Ruediger Pluem]

  *) ab: Improve client performance by clearing connection pool instead
     of destroying it. PR 40054 [Brad Roberts <braddr puremagic.com>]

  *) ab: Don't stop sending a request if EAGAIN is returned, which
     will only happen if both the write and subsequent wait are
     returning EAGAIN, and count posted bytes correctly when the initial
     write of a request is not complete. PR 10038, 38861, 39679
     [Patrick McManus <mcmanus datapower.com>,
      Stefan Fleiter <stefan.fleiter web.de>,
      Davanum Srinivas, Roy T. Fielding]

  *) ab: Overhaul stats collection and reporting to avoid integer
     truncation and time divisions within the test loop, retain
     native time resolution until output, remove unused data,
     consistently round milliseconds, and generally avoid losing
     accuracy of calculation due to type casts. PR 44878, 44931.
     [Roy T. Fielding]

  *) ab: Add -r option to continue after socket receive errors.
     [Filip Hanik <devlist hanik.com>]

  *) core: Do not allow Options ALL if not all options are allowed to be
     overwritten. PR 44262 [Micha艂 Grz臋dzicki <lazy iq.pl>]

  *) mod_cache: Handle If-Range correctly if the cached resource was stale.
     PR 44579 [Ruediger Pluem]

  *) mod_proxy: Do not try a direct connection if the connection via a
     remote proxy failed before and the request has a request body.
     [Ruediger Pluem]

  *) mod_proxy_ajp: Do not retry request in the case that we either failed to
     sent a part of the request body or if the request is not idempotent.
     PR 44334 [Ruediger Pluem]

  *) mod_rewrite: Initialize hash needed by ap_register_rewrite_mapfunc early
     enough. PR 44641 [Daniel Lescohier <daniel.lescohier cnet.com>]

  *) mod_dav: Return "method not allowed" if the destination URI of a WebDAV
     copy / move operation is no DAV resource. PR 44734 [Ruediger Pluem]

  *) http_filters: Don't return 100-continue on redirects. PR 43711
     [Ruediger Pluem]

  *) mod_ssl: Fix a memory leak with connections that have zlib compression
     turned on. PR 44975 [Joe Orton, Amund Elstad <Amund.Elstad ist.com>,
     Dr Stephen Henson <steve openssl.org>]

  *) mod_proxy: Trigger a retry by the client in the case we fail to read the
     response line from the backend by closing the connection to the client.
     PR 37770 [Ruediger Pluem]

  *) gen_test_char: add double-quote to the list of T_HTTP_TOKEN_STOP.
     PR 9727 [Ville Skytt <ville.skytta iki.fi>]

  *) core: reinstate location walk to fix config for subrequests
     PR 41960 [Jose Kahan <jose w3.org>]

  *) rotatelogs: Log the current file size and error code/description
     when failing to write to the log file.  [Jeff Trawick]

  *) rotatelogs: Added '-f' option to force rotatelogs to create the
     logfile as soon as started, and not wait until it reads the
     first entry. [Jim Jagielski]

  *) rotatelogs: Don't leak memory when reopening the logfile.
     PR 40183 [Ruediger Pluem, Takashi Sato <serai lans-tv.com>]

  *) rotatelogs: Improve atomicity when using -l and cleaup code.
     PR 44004 [Rainer Jung]

  *) mod_authn_dbd: Disambiguate and tidy database authentication
     error messages.  PR 43210.  [Chris Darroch, Phil Endecott
     <spam_from_apache_bugzilla chezphil.org>]

  *) mod_headers: Add 'merge' option to avoid duplicate values within
     the same header. [Chris Darroch]

  *) mod_cgid: Explicitly set permissions of the socket (ScriptSock) shared by
     mod_cgid and request processing threads, for OS'es such as HPUX and AIX
     that do not use umask for AF_UNIX socket permissions.
     [Eric Covener, Jeff Trawick]

  *) mod_cgid: Don't try to restart the daemon if it fails to initialize
     the socket.  [Jeff Trawick]

  *) mod_log_config: Add format options for %p so that the actual local
     or remote port can be logged.  PR 43415.  [Adam Hasselbalch Hansen
     <ahh@one.com>, Ruediger Pluem, Jeff Trawick]

  *) Added 'disablereuse' option for ProxyPass which, essentially,
     disables connection pooling for the backend servers.
     [Jim Jagielski]

  *) mod_speling: remove regression from 1.3/2.0 behavior and
     drop dependency between mod_speling and AcceptPathInfo.
     PR 43562 [Jose Kahan <jose w3.org>]

  *) mod_substitute: The default is now flattening the buckets after
     each substitution. The newly added 'q' flag allows for the
     quicker, more efficient bucket-splitting if the user so
     desires. [Jim Jagielski]

  *) http_filters: Don't spin if get an error when reading the
     next chunk. PR 44381 [Ruediger Pluem]

  *) ab: Do not try to read non existing response bodies of HEAD requests.
     PR 34275 [Takashi Sato <serai lans-tv.com>]

  *) ab: Use a 64 bit unsigned int instead of a signed long to count the
     bytes transferred to avoid integer overflows. PR 44346 [Ruediger Pluem]

  *) ProxyPassReverse is now balancer aware. [Jim Jagielski]

  *) mod_include: Correctly handle SSI directives split over multiple filter
     passes.  PR 44447 [Harald Niesche <harald brokenerror.de>]

  *) mod_cache: Revalidate cache entities which have Cache-Control: no-cache
     set in their response headers. PR 44511 [Ruediger Pluem]

  *) mod_rewrite: Check all files used by DBM maps for freshness, mod_rewrite
     didn't pick up on updated sdbm maps due to this.
     PR41190 [Niklas Edmundsson]

  *) mod_proxy: Lower memory consumption for short lived connections.
     PR 44026. [Ruediger Pluem]

  *) mod_proxy: Keep connections to the backend persistent in the HTTPS case.
     [Ruediger Pluem]

  *) Don't add bogus duplicate Content-Language entries
     PR 11035 [Davi Arnaut]

  *) Worker / Event MPM: Fix race condition in pool recycling that leads to
     segmentation faults under load.  PR 44402
     [Basant Kumar Kukreja <basant.kukreja sun.com>]

  *) mod_proxy_ftp: Fix base for directory listings.
     PR 27834 [Nick Kew]

  *) mod_logio: Provide optional function to allow modules to adjust the 
     bytes_in count [Eric Covener]

  *) http_filters: Don't return 100-continue on client error
     PR 43711 [Chetan Reddy <chetanreddy gmail.com>]

  *) mod_charset_lite: Add TranslateAllMimeTypes sub-option to
     CharsetOptions, allowing the administrator to skip the
     mimetype checking that precedes translation.
     PR 44458 [Eric Covener]

  *) mod_proxy_http: Fix processing of chunked responses if
     Connection: Transfer-Encoding is set in the response of the proxied
     system. PR 44311 [Ruediger Pluem]

  *) mod_proxy_http: Return HTTP status codes instead of apr_status_t
     values for errors encountered while forwarding the request body
     PR 44165 [Eric Covener]

  *) mod_rewrite: Don't canonicalise URLs with [P,NE]
     PR 43319 [<rahul sun.com>]