Disabling the GUI login mode of Redhat or CentOS servers

For disabling the GUI login mode, do the following steps

Open the terminal and do the following commands as root user or sudo user.

For CentOS 6 or RHEL 6

Edit /etc/inittab, enter:

# nano /etc/inittab

Find:

id:5:initdefault:

Replace with:

id:3:initdefault:

Save and close the file.

For stopping the currently running GUI session:

# init 3

To get back into the GUI mode temporarily, type the following in the terminal.

# init 5

To see default

systemctl get-target

To switch GUI off (equivalent to init 3 in the previous versions)

systemctl set-target multi-user.target

To Enable GUI (equivalent to init 5 in the previous versions)

systemctl set-target graphical.target