Initial Setup of a Linux CentOS5 / RHEL5 System
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Setup of a Linux CentOS5 /RHEL5 System
Running Linux straight out of the box is a bit of a raw experience. I make a number of tweaks after the initial install. I'm going to document these tweaks here.
Never login as root!
During the install, there will be a place to create an account. Create an account there. Login with the account you created during the install.
Get sudo working for your account.
Once you are logged in, start a "Terminal". Type su, type the root password. This will be the first and last time you type "su". Now, edit /etc/sudoers. Find the line
## Allow root to run any commands anywhere root ALL=(ALL) ALL
and add you account:
## Allow root to run any commands anywhere root ALL=(ALL) ALL jkh ALL=(ALL) NOPASSWD: ALL
I add the "NOPASSWD:" option, this allows you to run sudo with out typing your password. Many people would argue that this is a security problem. Just make sure that your password is strong.
## Allow root to run any commands anywhere root ALL=(ALL) ALL jkh ALL=(ALL) NOPASSWD: ALL
Since the /etc/sudoers is not "writeable" by anyone, to save the file you must use ":w!" followed by ":q". Now exit "su" with "Ctrl-D".
Add yum repositories.
Running Linux
