Swap partition recommendation by RedHat

RAM                              SWAP

up-to 4GB                at-least 2GB
4GB to 16GB             at-least 4GB
16GB to 64GB           at-least 8GB
64GB to 256GB          at-least 16GB

Managing Partitions in RHEL6

This video explains about creating & deleting partitions in RHEL6

Advance permission controls in RHEL6

To enable the advance permission controls in the permission dialog box

#gconftool-2 -t bool --set /apps/nautilus/preferences/show_advanced_permissions true

To disable the advance permission controls in the permission dialog box

#gconftool-2 -t bool --set /apps/nautilus/preferences/show_advanced_permissions false

VNC Server Configuration in RHEL6

Server side:

#vim /etc/sysconfig/vncservers

VNCSERVERS="1:visitor 2:student" (Edit the line in the above file)
Create 2 users (visitor & student with some password)

Login to visitor & student users and set vncpasswd (6 chars minimum)

#service vncserver restart

Client side:

#vncviewer -via visitor@server.example.com localhost:2

Loopback adapter setting in RHEL6

Try this following command in the terminal prompt:

#ifconfig lo:0 192.168.0.254 netmask 255.255.255.224 up

ISCSI works good in RHEL6

This video explains how to create ISCSI in RHEL6

NTP Server works good in RHEL6

This video explains the step by step NTP (Network Time Protocol) in Red Hat Enterprise Linux 6