Remote includes

Remote includes are a great way to share your configuration settings between servers. Simply specify an URL instead of a file, like this:

Put your (shared) configuration files on a secure location, like a trusted web server and have IRC servers fetch these configuration files when they boot or the configuration is /REHASH'ed.

Even better. If you have a multi-server network, then you can change the configuration file(s) on the web server and just run  on IRC. All IRC servers on your network will then reload the configuration, including your changes.

Requirements
In the Windows version, remote includes support is always enabled.

On *NIX, in UnrealIRCd 5 remote includes need to be enabled during  on *NIX. In UnrealIRCd 6 remote includes for https:// links are always available but for other protocols it needs to be enabled like in UnrealIRCd 5.

Example
In the example below we will assume you have a website called admin.example.org:

Create and password-protect a HTTP directory
Note: operations below are executed on the shell and assume shell access. You may possibly achieve the same via an admin panel like cPanel and SCP/SFTP.

irc@system:~$ cd public_html irc@system:~/public_html$ mkdir conf irc@system:~/public_html$ cd conf irc@system:~/public_html/conf$ irc@system:~/public_html/conf$ nano .htaccess Put in that file the following (change the path where needed!): AuthType Basic AuthName "restricted test" AuthUserFile /home/irc/public_html/conf/.htpasswd require valid-user irc@system:~/public_html/conf$ htpasswd -c /home/irc/public_html/conf/.htpasswd restricted New password: Re-type new password: Adding password for user 'restricted'
 * SSH to your www shell, go to the WWW directory and create a directory to store the configuration files:
 * Create an .htaccess file
 * Create a .htpasswd file with the appropriate password
 * Create or upload a file called opers.conf in this ~/public_html/conf/ directory.

Use remote includes to fetch the conf
This is simple, you just write down the URL in the include directive. In our example that would be like this:

HTTPS is best, but requires your site to have HTTPS enabled: include "https://restricted:passwordyoutyped@admin.example.org/conf/opers.conf";

Nginx tips
If you use nginx rather than apache as webserver, the way to configure the location is: location ~* ^/conf/*$ { auth_basic "Remote configuration"; auth_basic_user_file /home/irc/public_html/conf/.htpasswd; }

What if your web server is down
When UnrealIRCd can't load a remote include it will used a "cache copy" (stored in the cache/ subdirectory in UnrealIRCd). A cached copy is always available, unless you are including the URL for the first time.

This way, you can safely use remote includes. Even if there's an outage at your web server, your IRC servers will still be able to boot or REHASH. (Many years ago this wasn't the case and an outage of the web servers would cause a really problematic situation)