docs: added large header support for Apache

docs/admin/apache-conf-example.rst

@@ -1,87 +1,90 b''
 .. _apache-conf-eg:
 
 Apache Configuration Example
 ----------------------------
 
 Use the following example to configure Apache as a your web server.
 Below config if for an Apache Reverse Proxy configuration.
 
 .. note::
 
    Apache requires the following modules to be enabled. Below is an example
    how to enable them on Ubuntu Server
 
 
 .. code-block:: bash
 
     $ sudo a2enmod proxy
     $ sudo a2enmod proxy_http
     $ sudo a2enmod proxy_balancer
     $ sudo a2enmod headers
     $ sudo a2enmod ssl
     $ sudo a2enmod rewrite
 
     # requires Apache 2.4+, required to handle websockets/channelstream
     $ sudo a2enmod proxy_wstunnel
 
 
 .. code-block:: apache
 
     ## HTTP to HTTPS rewrite
     <VirtualHost *:80>
        ServerName rhodecode.myserver.com
        DocumentRoot /var/www/html
        Redirect permanent / https://rhodecode.myserver.com/
     </VirtualHost>
 
     ## MAIN SSL enabled server
     <VirtualHost *:443>
 
         ServerName rhodecode.myserver.com
         ServerAlias rhodecode.myserver.com
 
         ## serve static files by Apache, recommended for performance
         #Alias /_static /home/ubuntu/.rccontrol/community-1/static
 
         RequestHeader set X-Forwarded-Proto "https"
 
         ## channelstream websocket handling
         ProxyPass /_channelstream ws://localhost:9800
         ProxyPassReverse /_channelstream ws://localhost:9800
 
         <Proxy *>
           Order allow,deny
           Allow from all
         </Proxy>
 
         # Directive to properly generate url (clone url) for RhodeCode
         ProxyPreserveHost On
 
         # Url to running RhodeCode instance. This is shown as `- URL:` when
         # running rccontrol status.
         ProxyPass / http://127.0.0.1:10002/ timeout=7200 Keepalive=On
         ProxyPassReverse / http://127.0.0.1:10002/
 
+        # Increase headers for large Mercurial headers
+        LimitRequestLine 16380
+
         # strict http prevents from https -> http downgrade
         Header always set Strict-Transport-Security "max-age=63072000; includeSubdomains; preload"
 
         # Set x-frame options
         Header always append X-Frame-Options SAMEORIGIN
 
         # To enable https use line below
         # SetEnvIf X-Url-Scheme https HTTPS=1
 
         # SSL setup
         SSLEngine On
         SSLCertificateFile /etc/apache2/ssl/rhodecode.myserver.pem
         SSLCertificateKeyFile /etc/apache2/ssl/rhodecode.myserver.key
 
         SSLProtocol             all -SSLv2 -SSLv3
         SSLCipherSuite          ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
         SSLHonorCipherOrder     on
 
         # Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
         #SSLOpenSSLConfCmd DHParameters "/etc/apache2/dhparam.pem"
 
     </VirtualHost>