Log files often help System Administrators in finding out important information about System related issues. In RHEL there are a lot of l...

Open /etc/pam.d/system-auth file. Now write these lines just above the line stating auth sufficient pam_unix.so: auth required pam_tal...

Service Group: Collection of dependent Resources Resource: Anything that the end user requires Resource Type: Collection of the resources...

SERVICE GROUPS AND RESOURCE OPERATIONS: Configuring service groups hagrp –add|-delete|-online|-offline group_name Modifying resources ...

/var/log/messages : General message and system related stuff /var/log/auth.log : Authenication logs /var/log/kern.log : Kernel logs /var...

[root@vcs1 /]# lltstat -p LLT port information:     Port    Usage        Cookie       0     GAB_Control  0x0           opens:     0 2 3...