CANT LOG IN AFTER I INSTALLED LINUX RED HAT
I HAVE A SCREEN WELCOME TO LOCAL HOST LOCAL DOMAIN
LOGIN.......
THEN PASSWORD ....
WHEN I TYPE THE USER NAME I PUT IN WHEN INTALLED THE PROGRAM
AND THE PASSWORD
THEY CAME UP
WHIT AUTHENTICOTION FAILLED
DONT KNOW WHAT TO DO
WALTER THAN K YOU

First off, I think your cap's lock key is stuck.

Authentication failed means you have the wrong username/password.

It would be whatever you set up during the inital install. If you cannot remember it you'll have to boot into single user mode and reset it. at the lilo prompt type linux single