I am running UrBackup on a Ubuntu vps I am trying to get my clients on my network to be able to reach the backup server as a remote backup server. I have double checked Internet server name/IP: & Internet server port: on client and server end and I have already set port forwarding rule on the firewall… still the client is not showing as online.
What version of the server are you using?
Did you enabled debug mode on both client and server?
Do you have a front-end to serve requests to urbackup-server end-point?
Any firewall enabled on your vps?
You should also double check your DNS configuration if you try to reach server through a domain name.
If using beta version I recommend reading the following: Server 2.5.25/Client 2.5.19 (updated)
Go through the administration documentation again and double check that your configuration looks coherent. UrBackup - Server administration manual