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Category: Linux101

SSH: Logging in

The single most handy tool for any Linux administrator is SSH. Short for Secure SHell, it is a way to connect to another computer, using the terminal. It is immensely powerful, and gaining confidence with it can be a bit of a challenge. Before you can do ANYTHING else, you need to know a few basic commands:

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One important difference between Debian and Fedora

Before starting out with Oracle Linux this summer, my experience with Linux had been more or less confined to Ubuntu, which stems from Debian. Oracle Linux, on the other hand, stems from the Fedora project and Red Hat. Though they both build on the same kernel, they diverge from each other in a few important aspects. Software available in the repositories for Debian are divided into free, non-free and contrib. All software available in Fedora’s repositories are free.

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Oracle Linux: Unable to connect to FTP server in terminal

In order to keep the virtual harddrive on my VM as small as possible, I prefer keeping installers on a network share that I can connect to through FTP. The terminal command for connecting to FTP servers handily enough is ftp. When running that command, terminal returned “Command not found”. It turns out that FTP is not installed on Oracle Linux by default.

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Oracle Linux: Unable to connect to the internet

When first installing Oracle Linux, you may run into being unable to connect to the internet. You may make the mistake of thinking that the problem is with the network settings on the host-side, and try to futz about changing what type of network connection the VM connects to. Don’t bother, it isn’t going to do any good, and you will only get annoyed.

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Starting out with Oracle Linux

I have been wanting to learn more about Linux for some time now, and the time has come to transform a desire to action. I have landed on Oracle Linux, for reasons that will soon become clear. As I don’t have any machine to dedicate to this, and because I want to have the ability to take snapshots and revert to previous states, I will be running Linux as a virtual machine.

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