Q. I've CentOS Linux 5 Server and I'd like to apply all package and security update. How do I apply package updates from the Internet?
A. CentOS comes with yum command. It is a command-line interface to update packages. There is also a graphical tool called pup.
yum command
For a command-line interface over the ssh session, the the command as root user:
# yum update
pup command
To start the graphical Update tool, type the command:
# pup &
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