Parameterize the ServerName

conf/apache2/sites-available/lurker.conf

 <VirtualHost *:80>
-        ServerAdmin webmaster@autistici.org
-        ServerName lists.autistici.org
+        ServerAdmin webmaster@${DOMAIN}
+        ServerName lists.${DOMAIN}
         DocumentRoot /var/lib/lurker/www
 
         ScriptAlias /cgi-lurker /usr/lib/cgi-bin/lurker
@@ -28,4 +28,4 @@
             RewriteRule ^(attach|list|mbox|message|mindex|search|splash|thread|zap)/[^/]+$ /cgi-lurker/lurker.cgi [L,PT,E=LURKER_CONFIG:/etc/lurker/lurker.conf,E=LURKER_FRONTEND:%{REQUEST_FILENAME}]
           </IfModule>
         </Directory>
-</VirtualHost>
\ No newline at end of file
+</VirtualHost>