Find out who are recently logged on to your linux system

utmpdump /var/log/wtmp | less

PHP + LDAP Tutorial

http://us.php.net/manual/en/ldap.examples-basic.php

Installing kernel-debuginfo on RHEL 5.2

#yum --enablerepo=rhel-debuginfo install kernel-debuginfo

Finding Version of linux installed

#cat /etc/*release

Starting virtual server in a single user mode

From root domain:
#xm create {domain-name} -c
Example:- xm create rhel5b2-pv2 -c

-> follow the same steps to boot in single user mode as usual.