[Solved] Client connects, Online No

First off, thanks for the hard work that has gone into making and maintaining this Open Source project.

But I’m having slight difficulties.

Server Ubuntu 22.04 UrBackup 2.5.33

Client 1 - Windows 10 Pro working as Internet Client

Client 2 - Ubuntu 20.04 Server

  • This is an Internet Client
  • UrBackup client installed w installer downloaded from Add Client
  • Connects but shows Online No and fails to start file backup from UrBackup server

Debug log

urbackupclientbackend -i -v debug

2024-12-27 11:36:54: SQLite: recovered 24 frames from WAL file /usr/local/var/urbackup/backup_client.db-wal code: 283
2024-12-27 11:36:54: FileSrv: Server started up successfully
2024-12-27 11:36:54: urbackupserver: Server started up successfully!
2024-12-27 11:36:54: Started UrBackupClient Backend…
2024-12-27 11:36:55: Looking for old Sessions… 0 sessions
2024-12-27 11:36:56: Trying to connect to internet server urbackup://backup.xxxxx.xxx:55415
2024-12-27 11:36:56: Successfully connected.

Normal service start shows no errors and running

Client has Ports
55413:55415 TCP Open (web server hosting frontend to UrBackup server)
35621 & 35623 TCP Open
35622 UDP Open

Ping from server to client and client to server successful
Connecting via telnet to server:55415 successful from client
When I try to initiate a file backup from the web interface, Last File Backup says Starting Backup failed
I have restarted the Client. UrBackup client service starts w/o error.
I see the start in journalctl but not in /var/log/urbackup.log

Request assistance to further troubleshoot.

Any and all assistance is appreciated.

The backup server URL is backup.dn.tld to allow access from external (Internet) clients and this was the server I was trying to backup.

I think that when the urbackup client tried to reach the urbackup server, it was directed back to the external IP by DNS.

Both systems being on the same subnet, I added the internal IP’s into the /etc/hosts file of each system. This prevented the systems from trying to go out the router just to u-turn to get back to the same system.

It also seemed that once the UrBackup client failed it quit trying. During my testing sometimes I would see things like Auth failures in the logs every five minutes, then they just stopped. Reinstalling the client didn’t seem to help. Had to remove the client (uninstall_urbackupclient) and reinstall to get it to try again. Restarting the service or rebooting didn’t seem to help.

Hope this help someone.