How to use yum to update RHEL5 servers

Objective: use yum to install/update packages through RHN for RHEL5 servers

Steps:

• user rhnreg_ks to register the server with RHN
  

rhnreg_ks --profilename=my_server_name --username=myusername --password=password [--proxy=http://10.0.0.1:8080]

note: you must make sure your server is able to reach Internet, either directly or through proxy server

• 
  

   yum install packages_name

  You might export http_proxy first or put proxy setting in /etc/yum.conf 
  

  Reference:

  1. 
     

     How do I use rhnreg_ks to register my Red Hat Enterprise Linux system to RHN?