Category Archives: Troubleshooting

Various problems solutions

Arch Linux: WireGuard Peer for Connecting to MikroTik
0 (0)

8 May 2026

In the post MikroTik: setting up WireGuard and connecting Linux peers I described how to set up MikroTik as a VPN Hub and connect a peer running on Debian Linux. Setup on Arch Linux is mostly the same as on Debian – but every time I end up digging through this blog and my other… Read More: Arch Linux: WireGuard Peer for Connecting to MikroTik0 (0) »

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SSL/TLS: Self-signed Certificate Authority for NGINX on FreeBSD
0 (0)

18 April 2026

I run a bunch of web services on my home NAS – Grafana, VictoriaMetrics, my own WordPress blog, and half a dozen other small things. The whole series of posts on FreeBSD and NAS starts here – FreeBSD: Home NAS, part 1 – setting up ZFS mirror, there are 15 parts as of now. NGINX+PHP… Read More: SSL/TLS: Self-signed Certificate Authority for NGINX on FreeBSD0 (0) »

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AWS: Basic Infrastructure Setup for WordPress
0 (0)

15 March 2026

It’s time for a major server upgrade for RTFM, which I usually do by migrating to a new server – because I also do various other upgrades along the way, like upgrading the PHP version or even migrating to a different cloud. This time I’m planning to move from DigitalOcean, where RTFM has been hosted… Read More: AWS: Basic Infrastructure Setup for WordPress0 (0) »

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FreeBSD: Home NAS, Part 15: Automating Backups – scripts, rsync, rclone
0 (0)

15 March 2026

This is essentially the last major task – setting up automated backup creation. In the post FreeBSD: Home NAS, Part 13: Planning Data Storage and Backups I described the general idea in more detail – what gets backed up, where, what gets stored and how – and today is the purely technical part about the actual… Read More: FreeBSD: Home NAS, Part 15: Automating Backups – scripts, rsync,… »

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MikroTik: WireGuard VPN Setup and Linux Peer Configuration
0 (0)

14 March 2026

Another one of the many nice features of MikroTik – built-in WireGuard support (although even cheap TP-Link Archers have it). In my setup, the MikroTik RB4011 acts as a “VPN Hub” – all clients connect to it and are united into a single network, and the role of VPN is slightly exaggerated is genuinely important… Read More: MikroTik: WireGuard VPN Setup and Linux Peer Configuration0 (0) »

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Raspberry Pi: first experience and installation of Raspberry Pi OS Lite
0 (0)

13 March 2026

For those who don’t follow updates in the Telegram channel rtfmcoua or are visiting my blog for the first time, a reminder that for the last couple of months I’ve been building a “self-hosted home stack”, which already includes a couple of MikroTik devices and a ThinkCentre running FreeBSD. On the ThinkCentre / FreeBSD I… Read More: Raspberry Pi: first experience and installation of Raspberry Pi OS… »

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FreeBSD: Home NAS, part 10 – monitoring with VictoriaMetrics and Grafana
3.8 (6)

7 February 2026

Finally got around to monitoring. I was interested in running a standard stack with VictoriaMetrics + Grafana + Alertmanager not in the usual Kubernetes with a Helm chart, but simply on the host. However, the approach is the same as monitoring services in AWS/Kubernetes – on FreeBSD, we will have VictoriaMetrics for metrics, Grafana for… Read More: FreeBSD: Home NAS, part 10 – monitoring with VictoriaMetrics and… »

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Arch Linux: “mysterious” DNS timeouts and “in search of the Ethernet truth”
5 (1)

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: Arch Linux: “mysterious” DNS timeouts and “in search of the… »

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FreeBSD: Home NAS, part 7 – NFSv4 and use with Linux clients
5 (2)

5 January 2026

The next step in the process of setting up a home NAS on FreeBSD is to add an NFS share. We set up Samba in the previous part – now we let’s add NFS shares to it. My idea is for the Samba share to be used for various media resources requiring access from phones… Read More: FreeBSD: Home NAS, part 7 – NFSv4 and use with… »

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TCP/IP: SYN flood attack on the RTFM server, and “Hacker News hug of death”
0 (0)

2 January 2026

Got an alert from the monitoring system this morning, indicating that the blog is down: Well, I thought: another one DDoS, not the first time. Investigating the issue I went to the Cloudflare admin, enabled the Under Attack Mode, and started the investigation. Checked the requests: I think, okay, it’s simple – requests are coming… Read More: TCP/IP: SYN flood attack on the RTFM server, and “Hacker… »

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