Transmission WebGUI Connection Problem

After a recent update to Transmission BT I was unable to connect to the WebGUI using the FQDN.  After a bit of Googling I found someone else with the same issue.  My fix was pretty simple on CentOS, I just had to modify /var/lib/transmission/.config/transmission-daemon/settings.json

Towards the bottom you'll see:

"rpc-host-whitelist": "", "rpc-host-whitelist-enabled": true,

I just had to add my FQDN to the rpc-host-whitelist as follows:

"rpc-host-whitelist": "*.mydomain.tld", "rpc-host-whitelist-enabled": true,

Make sure you stop transmission-daemon before edit settings.json and restart it when your done.

-Sean