I went to the OpenVPN page to take a screenshot to assist on this question and saw that the user I had added as an OpenVPN user was no longer there.
Interestingly, I can still connect without any issues.
Is there anything I should check before trying to re-create that user.
Cheers.
This command returns empty?
db vpn show
but certificate is there:
ls -l /var/lib/nethserver/certs/eddie*[root@Nethserver ~]# db vpn show
[root@Nethserver ~]# ls -l /var/lib/nethserver/certs/eddie*
-rw-r--r-- 1 root root 1586 Mar 4 13:45 /var/lib/nethserver/certs/eddie@BogoLinux.net.crt
-rw-r--r-- 1 root root 1106 Mar 4 13:45 /var/lib/nethserver/certs/eddie@BogoLinux.net.csr
-rw-r----- 1 root adm 1708 Mar 4 13:45 /var/lib/nethserver/certs/eddie@BogoLinux.net.key
-rw-r--r-- 1 root root 3940 Mar 4 13:45 /var/lib/nethserver/certs/eddie@BogoLinux.net.p12
[root@Nethserver ~]#
In case it’s relevant, this user was created as System user, not VPN-only.
Cheers.
Anything vpn-related in accounts db?
grep -i vpn /var/lib/nethserver/db/accounts
Is this a virtual machine you can use snapshots of?
[root@Nethserver ~]# grep -i vpn /var/lib/nethserver/db/accounts
[root@Nethserver ~]#
'Fraid not. It’s real hardware as my firewall/router.
Cheers.
I was about to suggest to make a configuration backup, then recreate the vpn user, either from the GUI or from the command line (db). Did a test and, apparently, found no adverse effect. But I’d rather wait for devs advice.
Exactly why I reported it here before attempting the exact same thing. 
Cheers.
There was an update few days ago with a migration fragment from old db format to a new one.
You could check in /var/log/messages any change on vpn db after nethserver-openvpn update.
Should be safe also to re-add the user from the web interface.
I found the update in the logs, but there are no unusual or error messages thrown.
Re-added the user and compared the downloaded configuration with the old one. Everything appears to be back the same.
Cheers.