+
+## Proxies
+If Shaarli is served behind a proxy (i.e. there is a proxy server between clients and the web server hosting Shaarli), please refer to the proxy server documentation for proper configuration. In particular, you have to ensure that the following server variables are properly set:
+
+- `X-Forwarded-Proto`
+- `X-Forwarded-Host`
+- `X-Forwarded-For`
+
+See also [proxy-related](https://github.com/shaarli/Shaarli/issues?utf8=%E2%9C%93&q=label%3Aproxy+) issues.
+
+
+## See also
+
+ * [Server security](Server-security.md)
+
+#### Webservers
+
+- [Apache/PHP - error log per VirtualHost](http://stackoverflow.com/q/176) (StackOverflow)
+- [Apache - PHP: php_value vs php_admin_value and the use of php_flag explained](https://ma.ttias.be/php-php_value-vs-php_admin_value-and-the-use-of-php_flag-explained/)
+- [Server-side TLS (Apache)](https://wiki.mozilla.org/Security/Server_Side_TLS#Apache) (Mozilla)
+- [Nginx Beginner's guide](http://nginx.org/en/docs/beginners_guide.html)
+- [Nginx ngx_http_fastcgi_module](http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html)
+- [Nginx Pitfalls](http://wiki.nginx.org/Pitfalls)
+- [Nginx PHP configuration examples](http://kbeezie.com/nginx-configuration-examples/) (Karl Blessing)
+- [Server-side TLS (Nginx)](https://wiki.mozilla.org/Security/Server_Side_TLS#Nginx) (Mozilla)
+- [How to Create Self-Signed SSL Certificates with OpenSSL](http://www.xenocafe.com/tutorials/linux/centos/openssl/self_signed_certificates/index.php)
+- [How do I create my own Certificate Authority?](https://workaround.org/certificate-authority)
+
+#### PHP
+
+- [Travis configuration](https://github.com/shaarli/Shaarli/blob/master/.travis.yml)
+- [PHP: Supported versions](http://php.net/supported-versions.php)
+- [PHP: Unsupported versions](http://php.net/eol.php) _(EOL - End Of Life)_
+- [PHP 7 Changelog](http://php.net/ChangeLog-7.php)
+- [PHP 5 Changelog](http://php.net/ChangeLog-5.php)
+- [PHP: Bugs](https://bugs.php.net/)