According to the Server Admin document, urBackup Server binds to following default ports:
55413 FastCGI for web interface Incoming TCP
55414 HTTP web interface Incoming TCP
55415 Internet clients Incoming TCP
35623 UDP broadcasts for discovery Outgoing
On my computer, port 35623 is already used by another piece of software, whose port I cannot readily change. I looked through the Args.txt file, and it does allow changing the first three numbers, but not the fourth one. I also tried changing this port number on the client, also couldn’t find where.
The client says “Internet Connection Status: Connected to Internet server.” However, when the server tries to connect to it (presumably in order to run a back-up), the log keeps showing the following line:
2025-01-30 13:21:54: Looking for old Sessions... 1 sessions
(repeats every 30 minutes)
2025-01-30 13:27:59: Sending Identity to client "TAGROOM" failed. Retrying soon...
2025-01-30 13:27:59: Sending Identity to client "TAGROOM" failed. Retrying in 10m... (returned "failed")
(repeat every 10 minutes)
One thing that seems strange is, that it would keep using this (local) port to connect to the client, even though it’s an internet client (which is available on the local network).
Also, on the client side, the log shows:
2025-01-30 13:49:58: Trying to connect to internet server urbackup://192.168.1.23:45414
2025-01-30 13:49:58: Successfully connected.
(once)
2025-01-30 13:50:07: ClientService cmd: STATUS DETAIL#pw=jgcQWA3bBu8ISr934HVfK1jbVSf7wx
2025-01-30 13:50:08: Error receiving challenge packet
2025-01-30 13:50:08: InternetClient: Had an auth error
(above 2 lines repeat every 5 min 20 sec)
2025-01-30 13:50:08: ClientService cmd: STATUS DETAIL#pw=jgcQWA3bBu8ISr934HVfK1jbVSf7wx
2025-01-30 13:50:09: rc=0 hasError=true state=0
2025-01-30 13:50:18: Error receiving challenge packet
2025-01-30 13:50:18: InternetClient: Had an auth error
2025-01-30 13:50:22: ClientService cmd: STATUS#pw=jgcQWA3bBu8ISr934HVfK1jbVSf7wx
2025-01-30 13:50:41: ClientService cmd: STATUS DETAIL#pw=jgcQWA3bBu8ISr934HVfK1jbVSf7wx
2025-01-30 13:50:42: ClientService cmd: STATUS DETAIL#pw=jgcQWA3bBu8ISr934HVfK1jbVSf7wx
2025-01-30 13:50:43: rc=0 hasError=true state=0
(once)
2025-01-30 13:51:14: ClientService cmd: STATUS#pw=jgcQWA3bBu8ISr934HVfK1jbVSf7wx
(repeats every 51 seconds, timer resetting after the 5min-20sec message)
2025-01-30 13:58:00: ClientService cmd: #IWlf9szzL0ZYtRmLs0txt#ADD IDENTITY
2025-01-30 13:58:00: Rejected server identity Wlf9szzL0ZYtRmLs0txt
2025-01-30 13:58:00: rc=0 hasError=true state=0
(once)