Howtos / Articles

Get The Active DNS Servers On Linux

The Domain Name System (DNS for short) is one of the most important parts of the internet infrastructure. It converts the easy to remember domain names, into IP (and IPv6) addresses, that aren’t so friendly to the end user. Regardless of the distribution of Linux that you are using (such as Ubuntu, CentOS, Debian, Arch, Redhat, etc), the process of determining what DNS servers are currently being used for domain name resolution is the same. To determine what DNS servers…

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Common Cisco Router IOS Commands

The commands below show some of the more common day to day commands that you will use when configuring or diagnosing issues on a Cisco router that is running the IOS software. This can be used as a quick cheat sheet on the common basic commands. All these commands can be shortened to some extent. For example “show run” will actually execute the same as “show running-config”. enter privileged mode enable Show the current configuration show running-config Saving the config…

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