AH01623 [allowmethods:error] Issue on DirectAdmin & How to Fix it

This post is for my personal reference for future use.

If you are using a VPS or a Dedicated Server and installed DirectAdmin as a Web / Server Panel, sometimes you may encounter the following error:

Sat May 02 07:27:45.728967 2020] [allowmethods:error] [pid 20266:tid XXXXXXX848] [client XXXXXXX] AH01623: client method denied by server configuration: 'PATCH' to /home/XXXXX/domains/XXXXXXX, referer: https://XXXXXXXX

This means that the server does not support a specific Request Method which in my case is a PATCH Request Method. So in order for this PATCH Request Method to work on the server that is using DirectAdmin, we need to enable it by:

1. SSH to your server
2. Type the following commands

cd /usr/local/directadmin/custombuild
./build set http_methods GET:HEAD:POST:PUT:DELETE:PATCH
./build rewrite_confs

Hope this helps!