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The ss utility

Overview By the end of this article you should be able to answer the following questions: The ss utility is the successor to the netstat utility. It is a great tool for troubleshooting networking related issues. Here’s how to list all listening and established connections: $ ss -a As above, […]

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Yum Repository GPG keys

Overview By the end of this article you should be able to answer the following questions: Yum makes use of GPG keys as a way to ensure that our machine downloads rpm packages from an authenticated source. To set up GPG keys for a yum repo, let’s first get a […]

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Setting the default kernel version

Overview By the end of this article you should be able to answer the following questions: By default, when your machine is starting up, it will automatically default to starting up the latest installed kernel. That is your bootloader’s default behaviour. However there are lot of commands available that can […]

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