Configure client to use ntp-server 192.168.0.4
# nano -w /etc/ntp.conf
Add line: server 192.168.0.4 iburst
Remove lines: server 0 .... server 1 .... server 2 ....
# service ntpd restart # chkconfig ntpd on
Resize logical volume (lv) mounted at /home
Reboot single usermode
Comment out /home in /etc/fstab
# init 1
Kill all services that are running by users other than root
# ps aux | grep -v "root" # killall -u
List logical volumes, find mapper, resize removing 1 gigabyte (this includes filesystem resize):
# lvdisplay # ls -l /dev/mapper # lvresize -r -L-1G /dev/mapper/vg-somevg_lv-home
mount ldap user
Configure ldap
# system-config-authentication &
Test ldap
# getent passwd username # cat /etc/auto.master /home/guests /etc/auto.guests # cat /etc/auto.guests * -rw instructor.example.com:/home/guests/&
Restart autofs
#service autofs restart; chkconfig autofs on
Enable IP Forwarding
Open /etc/sysctl.conf file using a text editor, enter:
# nano -w /etc/sysctl.conf
Set net.ipv4.ip_forward to 1, enter:
net.ipv4.ip_forward = 1
Save and close the file. Reload the changes by typing the following command:
# sysctl -p
find files
find files under /home, its owner is user2 but is not in gourp user2, copy these file to /root/backup
# mkdir /root/backup
# find /home -user user2 !-group user2 -exec cp -ar{} /root/backup \;