In case you have a bad Internet connection and does not want to interrupt the installation while it is running; please install "screen" on your server and run the installation under screen.

To install "screen" : 

For CentOs ;

yum -y install screen

For Debian :

apt-get install screen

Once screen is installed ; 

Type on the shell as root :

screen

This should open a new window inside the shell.

Change the directory to where the installer is.. ie.. if the installer was at /usr/src

cd /usr/src

You can  run the installer from here and even if your ssh timeouts, you can keep the installer running.

If you get disconnected and want to get back the screen; simply type in :

screen -r

once you are logged back in as root.

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Hope this helps.