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46 posts are tagged "linux"

An Open Letter To LinuxQuestions

...or maybe to myself. Introduction Two things first: 1. "This is a Linux Forum" - yes, it is. But wherever people come together to discuss whatever, the sociological, emotional and psychological aspects, and aspects of communication and language, are just as important as the (technical) topics. I h...

Dist-upgrade Debian stable from jessie to stretch

(before LTS support runs out) Disclaimer: This article is not a complete tutorial, it is simply a set of notes I took down following these instructions. Today I found out that the debian security team handles oldstable releases only for a year or so, after which the LTS team takes over, which is arg...

Search man pages with less: Unhighlight search results

The man command uses a pager, that is responsible for pagination, but also search and highlight. If your pager is less, you can search man pages with /search string. It will then highlight the search results, and they can be traversed with n/N. The highlighting helps to find the search string, but i...

AUR installation: PGP signatures could not be verified

When trying to build an [AUR][1] package, i got this error: ==> Verifying source file signatures with gpg... freetype-2.9.tar.bz2 ... FAILED (unknown public key C1A60EACE707FDA5) ==> ERROR: One or more PGP signatures could not be verified! ==> ERROR: Makepkg was unable to build freetype2-cl...

Fonts on Linux, Chapter Two: Improving freetype rendering

I have previously shown how to change default and fallback fonts with a user configuration. The results are already very good. Nevertheless, I have adjusted the substitutions a little more now, and went through all files in /etc/fonts/conf.dto see what is what and if I can delete some, and uninstall...

Checking all hard drives for errors

First of all, I fired up my trusty SysRescueCD USB stick. Start with getting some SMART information: smartctl -a /dev/sda Perform a short test - takes a few minutes only: smartctl -t short /dev/sda Check results: smartctl -l selftest /dev/sda General health report: smartctl -H /dev/sda My external U...

Getting email off my (non-mail) server with sSMTP

This article is originally from 2016, but I edited it a few times. Instead of trying to cover all sorts of usage scenarios, here's the disclaimer: this works on my setup. Yours may be different. My server is not a mail server, and I never learned to use UNIX' internal mailing system. But sometimes...