Essential commands for Linux network administration

Posted by jennyrl on May 16, 2008 9:24 AM EDT; By Mark Rais
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In this article, Mark Rais shares a list of those essential networking commands every beginning Linux administrator needs to know.

Every beginning Linux administrator needs a list of networking commands essential for effective server use. This article provides a summary of the most important or frequently used commands, and offers some tips for ensuring your server runs smoothly. Please keep in mind that these tips assume you already have a configured Linux hostname and IP, with a working network card and connection.

ARP This short but quite useful command allows you to check your network card for connectivity and review your IP address and host network information. Although I tend to use other commands more frequently, arp is useful when I want to very quickly check status on my network card. host

HOSTNAME The host command is something I use very regularly to check either the hostname of a specific server when I have the IP address, or the IP address when I have a specific hostname. The primary function of the host command is to enable a quick lookup of DNS server information. But don't underestimate...

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