Redhat useful commands

To find installed version of a package

# rpm -qa | grep [package]

Configure networking on RedHat

#/usr/sbin/system-config-network

Configure firewall and SELinux on RedHat

#/usr/sbin/system-config-securitylevel-tui

Red Hat ES4

# rpm -e [packagename] -> Uninstall package
# up2date --nox -u -> Updates all packages
# up2date --nox -i [package_name] -> Installs package
# up2date --nox -d [package_name] -> Downloads package only
# up2date --showall | grep [package_name] -> Shows versions of packages available
# up2date --configure --nox -> Configure settings eg skip lists

Red Hat ES5

# yum list updates
# yum update
# yum list firefo*
# yum install [package]
# yum remove [package]