Commands that provide help are essential. Here's a look at some of the help you can get from the Linux system itself. Even after you’ve used Linux for a while, you will still find yourself needing ...

Last week’s column introduced NTP, the Network Time Protocol and the concept of highly accurate timekeeping. While numerous commands exist to help system administrators maintain fairly accurate time ...

Unix sysadmins routinely use the “ifconfig -a” command to list network parameters associated with their systems. In particular, they use this command to determine the IP address, netmask and broadcast ...