I noticed once after installing EJabberd in Ubuntu Server 16.04 and adding the user from the root command:
ejabberdctl register USER localhost PASSWORD
The following error:
/usr/sbin/ejabberdctl: line 428: 14615 Segmentation fault $EXEC_CMD “$CMD”
The log file /var/log/syslog reported:
Sep 11 11:17:00 mail kernel: [4647543.535271] audit: type=1400 audit(1505117820.598:43): apparmor=”DENIED” operation=”file_mmap” profile=”/usr/sbin/ejabberdctl//su” name=”/bin/su” pid=14439 comm=”su” requested_mask=”m” denied_mask=”m” fsuid=0 ouid=0
To solve the error, I opened the apparmor configuration file:
nano /etc/apparmor.d/usr.sbin.ejabberdctl
Found the string:
/bin/su r,
And changed it by adding m:
/bin/su rm,
Restarted the apparmor:
sudo service apparmor restart
Done, the error no longer appears.
Awesome