mod_rewrite似乎与最新的httpd升级破坏
在我们的办公室,我们的安全团队一直在我们的rhel5服务器上运行yum更新。受影响的软件包之一是httpd软件包。在更新之前,我们成功地利用apache中的mod_rewrite将所有流量从单独访问目录转到标题为browse.php的文件,但在更新运行后,重写规则神秘地退出工作。 yum更新之前的httpd版本是2.2.3-45.el5,更新之后是2.2.3-45.el5_6.1。作为显示在httpd.conf文件的重写规则读取(与目录和文件名的替代):mod_rewrite似乎与最新的httpd升级破坏
RewriteEngine on
RewriteRule ^/directory(?:/)?$ /directory/browse.php [R=permanent,L]
现在,当我们通过URL http://domain/directory浏览应用程序,页面不会重定向,并且将而是消耗CPU直到系统崩溃(我已经看到在几十个持续进程的范围内),而去url:http://domain/directory/(最后的区别在于)会将用户正确重定向到http://domain/directory/browse.php。
作为测试,我们无法在任何其他rhel5服务器上复制此内容。我们已经在配置中注释了重写规则,依靠index.html文件来处理标记中的重定向无济于事。我已经启用并检查了apache上的服务器状态页面,这些进程停留在回复阶段,并且它们没有记录任何apache日志(错误,访问,什么都没有)。我已经将代码库移动到一个单独的目录中,并且能够在另一个目录(依赖于上述index.html文件)时成功重定向到该目录,而无需任何重写规则。我用一个简单的index.html文件重新创建了有问题的目录,它不会加载。我还能够在apache的文档根目录下创建一个任意目录,并在其中放置一个简单的index.html文件,该文件可以正确加载,但这只是证明存在问题的特定目录。我们确实坐在一个bluecoat代理服务器的后面,但是我直接去服务器时通过复制这个问题来消除可能性。我们已经回滚了apache的版本,并试图通过部分更新来查看是否有任何特定的软件包正在导致它,但不能成功复制问题。
下面的代码是我的httpd.conf文件除上述重写线的内容:
ServerTokens ProductOnly TraceEnable Off ServerRoot "/etc/httpd" PidFile run/httpd.pid Timeout 60 KeepAlive Off MaxKeepAliveRequests 100 KeepAliveTimeout 15 StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 Listen 80 LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule dav_module modules/mod_dav.so LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule info_module modules/mod_info.so LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule file_cache_module modules/mod_file_cache.so LoadModule mem_cache_module modules/mod_mem_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule version_module modules/mod_version.so LoadModule php5_module /usr/lib/httpd/modules/libphp5.so AddType application/x-httpd-php .php Include conf.d/*.conf ExtendedStatus On User apache Group apache ServerAdmin [email protected] ServerName **OMITTED** UseCanonicalName On DocumentRoot "/var/www/html" Options FollowSymLinks AllowOverride None Options FollowSymLinks AllowOverride None Order allow,deny Allow from all DirectoryIndex browse.php index.html index.php AccessFileName .htaccess Order allow,deny Deny from all TypesConfig /etc/mime.types DefaultType text/plain MIMEMagicFile conf/magic HostnameLookups Off ErrorLog logs/error_**OMITTED**_log LogLevel warn LogFormat "%h \"%{X-Forwarded-For}i\" \"%{X-Forwarded-Host}i\" %u %t \"%r\" \"%{Host}i\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent CustomLog logs/access_**OMITTED**_log combined ServerSignature On Alias /icons/ "/var/www/icons/" Options MultiViews AllowOverride None Order allow,deny Allow from all DAVLockDB /var/lib/dav/lockdb ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" AllowOverride None Options None Order allow,deny Allow from all IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip AddIconByType (TXT,/icons/text.gif) text/* AddIconByType (IMG,/icons/image2.gif) image/* AddIconByType (SND,/icons/sound2.gif) audio/* AddIconByType (VID,/icons/movie.gif) video/* AddIcon /icons/binary.gif .bin .exe AddIcon /icons/binhex.gif .hqx AddIcon /icons/tar.gif .tar AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip AddIcon /icons/a.gif .ps .ai .eps AddIcon /icons/layout.gif .html .shtml .htm .pdf AddIcon /icons/text.gif .txt AddIcon /icons/c.gif .c AddIcon /icons/p.gif .pl .py AddIcon /icons/f.gif .for AddIcon /icons/dvi.gif .dvi AddIcon /icons/uuencoded.gif .uu AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl AddIcon /icons/tex.gif .tex AddIcon /icons/bomb.gif core AddIcon /icons/back.gif .. AddIcon /icons/hand.right.gif README AddIcon /icons/folder.gif ^^DIRECTORY^^ AddIcon /icons/blank.gif ^^BLANKICON^^ DefaultIcon /icons/unknown.gif ReadmeName README.html HeaderName HEADER.html IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t AddLanguage ca .ca AddLanguage cs .cz .cs AddLanguage da .dk AddLanguage de .de AddLanguage el .el AddLanguage en .en AddLanguage eo .eo AddLanguage es .es AddLanguage et .et AddLanguage fr .fr AddLanguage he .he AddLanguage hr .hr AddLanguage it .it AddLanguage ja .ja AddLanguage ko .ko AddLanguage ltz .ltz AddLanguage nl .nl AddLanguage nn .nn AddLanguage no .no AddLanguage pl .po AddLanguage pt .pt AddLanguage pt-BR .pt-br AddLanguage ru .ru AddLanguage sv .sv AddLanguage zh-CN .zh-cn AddLanguage zh-TW .zh-tw LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW ForceLanguagePriority Prefer Fallback AddDefaultCharset UTF-8 AddType application/x-compress .Z AddType application/x-gzip .gz .tgz AddHandler type-map var AddType text/html .shtml AddOutputFilter INCLUDES .shtml Alias /error/ "/var/www/error/" AllowOverride None Options IncludesNoExec AddOutputFilter Includes html AddHandler type-map var Order allow,deny Allow from all LanguagePriority en es de fr ForceLanguagePriority Prefer Fallback BrowserMatch "Mozilla/2" nokeepalive BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0 BrowserMatch "RealPlayer 4\.0" force-response-1.0 BrowserMatch "Java/1\.0" force-response-1.0 BrowserMatch "JDK/1\.0" force-response-1.0 BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully BrowserMatch "MS FrontPage" redirect-carefully BrowserMatch "^WebDrive" redirect-carefully BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully BrowserMatch "^gnome-vfs/1.0" redirect-carefully BrowserMatch "^XML Spy" redirect-carefully BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully SetHandler server-status Order deny,allow Deny from all Allow from all AddOutputFilterByType DEFLATE text/plain AddOutputFilterByType DEFLATE text/xml AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE image/svg+xml AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/atom_xml AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/x-javascript AddOutputFilterByType DEFLATE application/x-httpd-php AddOutputFilterByType DEFLATE application/x-httpd-fastphp AddOutputFilterByType DEFLATE application/x-httpd-eruby AddOutputFilterByType DEFLATE text/html BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip DeflateFilterNote Input instream DeflateFilterNote Output outstream DeflateFilterNote Ratio ratio LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate CustomLog logs/deflate_log deflate FileETag none ErrorDocument 404 /directory/404.html Header set Expires "Thu, 15 Apr 2020 20:00:00 GMT"
旧服务器可能归目录访问它达到你的重写规则(我的意思是加入一个斜杠前目录名称后,如果它不存在 - 这是正常的行为)
最干净的将解决您的条件规则:
RewriteEngine on
RewriteRule ^/directory(/|)?$ /directory/browse.php [R=permanent,L]
为了澄清,如果你注释掉mod_rewrite规则,会去'/ directory'还是会导致请求挂起? – 2011-06-03 17:08:13
正确。没有启用规则,它仍然挂起。 – Scott 2011-06-03 17:16:58