Login to your server using SSH
Then you need to enter in to screen mode using command
#Screen

If this command is not available in your server you can install by just using ” yum install scree”.

After you are entered in screenmode follow these commands.

iptables -F
/etc/init.d/iptables save
cd /home
wget http://httpupdate.cpanel.net/latest
chmod +x latest
screen
./latest