Shibboleth SP - listener failed to initialize

I was trying to set up Shibboleth SP for a customer for POC.

And so I was playing around with configuration and then I tried to restart shibd process. I kept getting "listener failed to initialize".

Newbie to Shibboleth. Took me a while to find out that the process was killed, but the pid and .sock files are not removed.

Once both files are removed from /var/run/shibboleth directory, the shibd process is able to start successfully!


PS: By the way, the proper way to restart shibd process is:

[root@cdemo shibboleth]# /etc/init.d/shibd restart
Stopping shibd:                                            [  OK  ]
Starting shibd:                                            [  OK  ]

.