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Hi there. We're having problems with a reverse proxy that runs from a windows 2003 /iis server to a w2k8/iis (dmz to internal server). Its running on Apache 2.2.3 using the following module setup ######################## LoadModule actions_module modules/mod_actions.so LoadModule alias_module modules/mod_alias.so LoadModule asis_module modules/mod_asis.so LoadModule auth_basic_module modules/mod_auth_basic.so #LoadModule auth_digest_module modules/mod_auth_digest.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 authn_file_module modules/mod_authn_file.so #LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule autoindex_module modules/mod_autoindex.so #LoadModule cern_meta_module modules/mod_cern_meta.so LoadModule cgi_module modules/mod_cgi.so #LoadModule dav_module modules/mod_dav.so #LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule deflate_module modules/mod_deflate.so LoadModule dir_module modules/mod_dir.so LoadModule env_module modules/mod_env.so #LoadModule expires_module modules/mod_expires.so #LoadModule file_cache_module modules/mod_file_cache.so LoadModule headers_module modules/mod_headers.so LoadModule imagemap_module modules/mod_imagemap.so LoadModule include_module modules/mod_include.so #LoadModule info_module modules/mod_info.so LoadModule isapi_module modules/mod_isapi.so LoadModule log_config_module modules/mod_log_config.so LoadModule mime_module modules/mod_mime.so #LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule proxy_http_module modules/mod_proxy_http.so #LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule setenvif_module modules/mod_setenvif.so #LoadModule speling_module modules/mod_speling.so #LoadModule status_module modules/mod_status.so #LoadModule unique_id_module modules/mod_unique_id.so LoadModule userdir_module modules/mod_userdir.so #LoadModule usertrack_module modules/mod_usertrack.so #LoadModule vhost_alias_module modules/mod_vhost_alias.so #LoadModule ssl_module modules/mod_ssl.so LoadFile "C:/Program Files/Apache Software Foundation/Apache2.2/bin/zlib1.dll" LoadFile "C:/Program Files/Apache Software Foundation/Apache2.2/bin/iconv.dll" LoadFile "C:/Program Files/Apache Software Foundation/Apache2.2/bin/libxml2.dll" RewriteEngine On RewriteCond %{REQUEST_METHOD} ^TRACE RewriteRule .* - [F] ###################### The reverse proxy runs under a virtual host: ################# <VirtualHost *:80> ServerName xxxxx.xxxx.xxxx.xxxxxx ServerAlias http://xxx.xxxxxx.xxxxx.xxxxx ErrorLog logs/httpd-localview-error2.log CustomLog logs/httpd-localview-access2.log common ProxyRequests off RewriteEngine On AddDefaultCharset UTF-8 ProxyPass / http://xxx.xxx.xxx.xxx/yyyyy/ ProxyPassReverse / http://x.xxx.xxx.xx/yyyyyy/ ProxyHTMLLogVerbose On LogLevel crit ProxyHTMLEnable On ProxyHTMLExtended On BrowserMatch MSIE force-response-1.0 ProxyHTMLMeta On ProxyHTMLStripComments Off ProxyHTMLDoctype XHTML ProxyHTMLURLMap http://xxxx.xxxx.xxxx.xxxx/ / ProxyHTMLURLMap http://xxxxxx.xxxxx.xxxx.xxxx/yyyyyy/ / ProxyHTMLURLMap /yyyyyyyy/ / ProxyBadHeader Ignore RequestHeader unset Accept-Encoding </VirtualHost> ####################### The basic error is a 502 bad gateway one, that always goes away after several refereshes on the browser. I've been through the logs and setup with a fine toothcomb, have added in a few bits missed - the dll loads mainly, and the BadHeader ignore. However, beyond a slight mprovement in the performance, nothing is better than it was before! Making slight changes to the iis server on the end seems to make the site load fine for a short time. the error log is not being filled at present, so I'm unsure where the 502 errors are being recorded |
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