If you’re a Linux administrator, there will be times when you have to work with the command line… many times. There’s a reason for that. With the command line comes great power and flexibility. For that very reason, you need to know the command line and know it well.
One area that you need a rock-solid understanding of is how to use the command line to work with network configurations. This is especially true when you have deployed headless (or GUI-less) servers that only offer a bash prompt for an interface. You’ll need to know how to manipulate those network configurations without the aid of a GUI.
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