Duplicati cant access from network

Support
1

Hi Guys,
Usual stuff from me! About my 5th linux install and as usual I can’t get to log into duplicati from another PC on the network. I installed links on the server (nethserver 7.6) and I can see the duplicati page from there using localhost:8200. However if I try from another PC on the network I get connection refused.

if I query the service i get;
duplicati.service - Duplicati Backup software
Loaded: loaded (/etc/systemd/system/duplicati.service; enabled; vendor preset: disabled)
Active: active (running) since Fri 2018-12-28 13:19:56 GMT; 23min ago
Main PID: 7545 (Main)
CGroup: /system.slice/duplicati.service
├─7545 /usr/bin/mono /usr/lib/duplicati/Duplicati.Server.exe --webservice-interface=any
└─7549 /usr/bin/mono-sgen /usr/lib/duplicati/Duplicati.Server.exe --webservice-interface=any

And I have stopped the firewall and still cant get access via a browser or trying via telnet to test the port is open.
It appears to be running on all interfaces.

I’m stuck. Please help.

Cheers.

2

You can confirm that at the network level with the netstat command showing 0.0.0.0:8200, for example:

$ netstat --tcp --listening --numeric
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 0.0.0.0:8201            0.0.0.0:*               LISTEN     
tcp        0      0 127.0.1.1:53            0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.1:8200          0.0.0.0:*               LISTEN     
tcp6       0      0 ::1:631                 :::*                    LISTEN     
$

however in my setup, I only have Duplicati listening on localhost (loopback adapter) 127.0.0.1. You want a 0.0.0.0:8200 I assume, similar to what I have on port 8201 using nc -l 8201. If telnet to 8201 from an external network location fails quickly on such a setup, then perhaps there’s still a firewall sending a reset. Slow failures (time-outs) could be due to a firewall not sending anything. Are you able to ping the system?

3

Hi, Thanks for the pointers.

I have now got it working. I’m not sure how as all I did was reboot the server and its running great.

For reference for anyone using centos or nethserver I used this excellent guide;

Cheers.