"Client authentication failure" errors when querying service status in Linux


#1

Anyone else see these errors, when running the following command on a Linux server:
(client names and IP addresses obfuscated)

root@UrBackup1 ~ # service urbackupsrv status
● urbackupsrv.service - LSB: Server for doing backups
   Loaded: loaded (/etc/init.d/urbackupsrv; generated; vendor preset: enabled)
   Active: active (running) since Sat 2018-07-21 01:43:03 PDT; 1 weeks 5 days ago
     Docs: man:systemd-sysv-generator(8)
  Process: 84665 ExecStop=/etc/init.d/urbackupsrv stop (code=exited, status=0/SUCCESS)
  Process: 84673 ExecStart=/etc/init.d/urbackupsrv start (code=exited, status=0/SUCCESS)
    Tasks: 77 (limit: 19660)
   CGroup: /system.slice/urbackupsrv.service
           └─84682 /usr/bin/urbackupsrv run --config /etc/default/urbackupsrv --daemon --pidfile /var/run/urbackupsrv.pid

Aug 02 13:37:10 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx20 from 66.85.x.xxx
Aug 02 14:22:33 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx13 from 66.85.x.xxx
Aug 02 14:22:33 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx06 from 66.85.x.xxx
Aug 02 14:22:33 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx11 from 66.85.x.xxx
Aug 02 14:22:33 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx28 from 66.85.x.xxx
Aug 02 14:22:33 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx12 from 66.85.x.xxx
Aug 02 14:22:33 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx25 from 66.85.x.xxx
Aug 02 14:22:35 UrBackup1 urbackupsrv[84682]: Client authentication failure for xxxxxxxxxxxxxx21 from 66.85.x.xxx

Running UrBackup Server v. 2.2.10 on Debian 9.5 (Stretch) in Internet Only mode.


#2

On freenas in jail I get:

root@UrBackup:/ # service urbackupsrv status
urbackupsrv does not exist in /etc/rc.d or the local startup
directories (/usr/local/etc/rc.d), or is not executable
root@UrBackup:/ #

#3

Freenas uses Freebsd, not Linux, so the service command may work a bit different. Or the name of the service may not be “urbackupsrv” in your case. But I appreciate you trying to help :slight_smile:


#4

Those are logs of client authentication failures for e.g. fail2ban (it goes into the syslog auth faciility). If you restart the server each client wanting to reconnect will have one of them…