Category Archives: GNU/Linux utils

Various GNU/Linux utilities and their usage examples

FreeBSD: Home NAS, part 9 – data backup to AWS S3 and Google Drive with rclone
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22 January 2026

In the previous post of the Home NAS on FreeBSD setup series, we got acquainted with restic – a utility for working with backups that supports encryption, snapshots, and change history; see FreeBSD: Home NAS, part 8 – backup of NFS and Samba data with restic. However, in addition to archival data in S3, I… Read More »

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Arch Linux: “mysterious” DNS timeouts and “in search of the Ethernet truth”
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20 January 2026

For a couple of months now, my work laptop, a Lenovo ThinkPad T14 Gen 5 running Arch Linux, has been having trouble opening new websites – for the first 10-15 seconds, the site loads in “pieces”, for example: But then it “wakes up”, and everything starts working perfectly: Finally, when I started setting up a… Read More »

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FreeBSD: Home NAS, part 5 – ZFS pool, datasets, snapshots, and ZFS monitoring
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27 December 2025

Continuing the “for fun and profit” journey of setting up my home server with FreeBSD on a Lenovo ThinkCentre M720s SFF. And today, finally, we will do the main part – set up a ZFS pool on real disks, look at working with datasets, encryption, snapshots, and monitoring. All posts in this blog series: FreeBSD:… Read More »

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FreeBSD: Home NAS, part 2 – introduction to Packet Filter (PF) firewall
3.7 (6)

24 December 2025

I’m continuing to gradually set up my home NAS on FreeBSD, and the first thing I want to dive into is FreeBSD firewalls. I used to work with IPFW back in the day – FreeBSD: initial setup of IPFW, from 2012. Currently, there are three “built-in” firewalls in the system – Packet Filter (PF), IP… Read More »

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Linux: LEMP set up – NGINX, PHP, MySQL, SSL, monitoring, logs, and a WordPress blog migration
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6 November 2020

Finally got time to migrate the RTFM.CO.UA blog to a new server with Debian 10. This time manually, without any automation will set up a LEMP stack Wrote a similar at 2016 – Debian: установка LEMP — NGINX + PHP-FPM + MariaDB (Rus), but in time the post is more complete of the process and… Read More »

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Linux: configuring KDE Connect and connection to an Android phone
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24 June 2020

A really nice Android phone and a Linux OS integration. Besides the KDE Connect, you can use gnome-shell-extension-gsconnect if you’d prefer the Gnome project. In this post, we will set up KDE COnnect between an Android HTC phone and Arch Linux. On Android install the KDE Connect from the Play Market. On Linux, install from… Read More »

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