Linux and Unix tutorials for new and seasoned sysadmin
Linux and Unix tutorials for new and seasoned sysadmin
How do I start, stop, or restart networking service under HP-UX, OpenBSD, AIX and other Unix like operating systems?
How do I enable IP forwarding under RHEL / Red Hat / Fedora / CentOS Linux operating systems?
How do I set caching dns server to speed up dns lookup for my LAN (500 PC)? The DNS lookups creating a lot of network activity. There are a few times when this causes performance issues. How do I configure caching dns under Debian Linux?
Q. How do I disable X Window system on boot? I just need text based interface and there is no need to waste resources on X window system. How do I disable X Window under CentOS / RHEL / Red Hat / Fedora Linux?
Q. Why does my yum command fail with an error that a repo is listed more than once under Fedora / RHEL / CentOS Linux? This error occurs when I type yum clean command
Loading “rhnplugin” plugin
Loading “security” pluginRepository xen-repo is listed more than once in the configuration
How do I fix this problem?
Continue reading “Red hat / Fedora / CentOS Yum Repo is Listed More Than Once”
Q. How do I remove virtual interfaces such as eth0:1 or eth1:1?
Continue reading “Linux command to remove virtual interfaces or network aliases”