Wordpress shows permanent loop redirect after upgrading from Apache 2.2 to Apache 2.4

Question

I've upgraded my Apache 2.2 web server to 2.4 today and then some Wordpress installations started to get infinite loops from non-www to www and from www to non-www :(

Removing .htaccesss didn't helped.

How to solve this ? Example domain config:

SetEnvIf X-Forwarded-Proto https HTTPS=1 ServerAdmin [email protected] ServerName internet.az.pl ServerAlias www.internet.az.pl DocumentRoot "/home/admin2/komputery" DirectoryIndex index.php index.html index.shtml index.htm index.pl index.py index.cgi index.rb default.htm Default.aspx Default.asp ScriptAlias /cgi-bin/ "/home/admin2/internet.az.pl/cgi-bin/" <IfModule mod_fastcgi.c> Alias /internet.az.pl.0fake "/home/admin2/komputery/internet.az.pl.0fake" #FastCGIExternalServer "/home/admin2/komputery/internet.az.pl.0fake" -host 127.0.0.1:52474 -idle-timeout 300 -pass-header Authorization FastCGIExternalServer "/home/admin2/komputery/internet.az.pl.0fake" -socket /opt/configs/php-fpm/sock/admin2.sock -idle-timeout 300 -pass-header Authorization AddType application/x-httpd-fastphp .php Action application/x-httpd-fastphp /internet.az.pl.0fake <Files "internet.az.pl.0fake"> RewriteCond %{REQUEST_URI} !internet.az.pl.0fake </Files> </IfModule> <Directory "/home/admin2/komputery/"> AllowOverride All <IfVersion < 2.4> Order allow,deny Allow from all </IfVersion> <IfVersion >= 2.4> Require all granted </IfVersion> Options +ExecCGI <FilesMatch \.(cgi|pl)$> SetHandler cgi-script </FilesMatch> </Directory> <IfModule mod_php5.c> php_admin_value sendmail_path "/usr/sbin/sendmail -t -i" php_admin_value sendmail_from "internet.az.pl" Include /home/kloxo/client/admin2/prefork.inc </IfModule> <Location "/"> Allow from all Options -Indexes -FollowSymlinks +SymLinksIfOwnerMatch <IfModule mod_php5.c> php_admin_value open_basedir "/home/admin2:/tmp:/usr/share/pear:/var/lib/php/session/:/home/kloxo/httpd/script:/home/kloxo/httpd/disable/:/usr/bin" </IfModule> </Location> CustomLog "/home/httpd/internet.az.pl/stats/internet.az.pl-custom_log" combined ErrorLog "/home/httpd/internet.az.pl/stats/internet.az.pl-error_log" 

and also httpd.conf:

 ServerTokens Prod ServerRoot "/etc/httpd" # MR -- must be disable here because can not overrite! -- importance for proxy-to-apache # Listen 80 Include conf.modules.d/*.conf User apache Group apache ServerAdmin root@localhost <Directory /> AllowOverride none Require all denied </Directory> DocumentRoot "/var/www/html" <Directory "/var/www"> AllowOverride None # Allow open access: Require all granted </Directory> # Further relax access to the default document root: <Directory "/var/www/html"> Options Indexes FollowSymLinks AllowOverride None Require all granted </Directory> <IfModule dir_module> DirectoryIndex index.html </IfModule> <Files ".ht*"> Require all denied </Files> ErrorLog "logs/error_log" LogLevel error <IfModule log_config_module> ## MR -- change %h to %a to fix mod_remoteip issue LogFormat "%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%a %l %u %t \"%r\" %>s %b" common <IfModule logio_module> LogFormat "%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio </IfModule> CustomLog "logs/access_log" combined </IfModule> <IfModule alias_module> # Alias /webpath /full/filesystem/path ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" </IfModule> <Directory "/var/www/cgi-bin"> AllowOverride None Options None Require all granted </Directory> <IfModule mime_module> TypesConfig /etc/mime.types AddType application/x-compress .Z AddType application/x-gzip .gz .tgz #AddHandler cgi-script .cgi #AddHandler type-map var AddType text/html .shtml AddOutputFilter INCLUDES .shtml </IfModule> AddDefaultCharset UTF-8 <IfModule mime_magic_module> MIMEMagicFile conf/magic </IfModule> Alias /error/ "/home/kloxo/httpd/error/" <IfModule mod_negotiation.c> <IfModule mod_include.c> <Directory "/home/kloxo/httpd/error/"> AllowOverride None Options IncludesNoExec AddOutputFilter Includes html AddHandler type-map var <IfVersion < 2.4> Order allow,deny Allow from all </IfVersion> <IfVersion >= 2.4> Require all granted </IfVersion> LanguagePriority en es de fr ForceLanguagePriority Prefer Fallback </Directory> #ErrorDocument 500 "The server made a boo boo." #ErrorDocument 404 /missing.html #ErrorDocument 404 "/cgi-bin/missing_handler.pl" #ErrorDocument 402 http://www.example.com/subscription_info.html ErrorDocument 401 /error/401.html ErrorDocument 403 /error/403.html ErrorDocument 404 /error/404.html ErrorDocument 500 /error/500.html ErrorDocument 501 /error/501.html ErrorDocument 503 /error/503.html ErrorDocument 504 /error/504.html </IfModule> </IfModule> EnableSendfile on IncludeOptional conf.d/*.conf 

Answer 1

First... stop using IfModule on bits that aren't optional. (not sure what is or is not required) They're only useful if you have a fall-back way of recovering if that module doesn't exist or isn't loaded. Otherwise, apache will start without error... despite the fact that 90% of your config won't actually be loaded.

A quick way to test and ultimately fix... is to remove all of the IfModule statements... and then restart apache. You'll almost certainly get errors. Read the error logs. Look at what errors you get... (i.e. can't load blah blah) and enable/install/rebuild the necessary modules that are required to make your site work.

Answer 2

The problem was in nginx - changing line:

proxy_set_header X-Host $var_domain; 

to

proxy_set_header X-Host $host; 

fixed the problem