Linux

The dreaded 'Low Disk space on /'. You may think to yourself, "But, I have plenty of space on my hard drive. How can space on root be low?" An online search will give numerous things to try - cleaning your package manager cache, removing all …

There are a handful of possible reasons for this error. Perhaps the problem is exactly what is says; you have tried and failed to log in too many times. Maybe your ssh configuration on the server side doesn't allow you to log in at all. Or, you could be bl…

I often need to test on servers set up in a very precise way. I may need to test an application running on an Ubuntu server with Apache and a specific version of php. Or, I may need to test an application or site on a LEMP stack running on CentOS. …

There are several encryption key formats available for ssh. Here I am covering DSA, RSA, ECDSA, and Ed25519. These are the most common. DSA and RSA use factoring of 2 large prime numbers in their encryption algorithm. ECDSA and Ed25519 use elliptical curves. …

If you maintain a VPS, hopefully you are aware of the continuous attack attempts. As one measure to keep your server secure you should periodically change your server's host keys. If your server has been compromised, you definitely want to change your keys…

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If you live in the command line, like I do, anything that keeps you from having to leave it is a good thing. I am not a weather junkie. But, I often want to know if it is going to rain during my commute, or if I am going to be able to enjoy the outdoors when I…

Adding Samba users is likely a task that you have to do irregularly. Here is a simple set of instructions that I hope can be a resource. Entries inside <> should be replaced, without the <>, with your entries. Entries inside [] are optional.  …