Small and Simple DDNS Client

February 20, 2020 (updated January 3, 2024) - 2 mins read

In-a-dyn is a small and simple Dynamic DNS, DDNS, client with HTTPS support. It is commonly available in many GNU/Linux distributions, used in off-the-shelf routers and Internet gateways to automate the task of keeping your DNS record up to date with any IP address changes from your ISP. It can also be used in installations with redundant (backup) connections to the Internet. Presentation here. Example The configuration file on most systems is in /etc/inadyn.

Fixing file sharing in Debian/Ubuntu/Mint

February 16, 2020 (updated July 13, 2020) - 1 min read

Mounting my ReadyNAS from Nautilus stopped working after upgrading to Ubuntu 20.04. Turns out there was a change in behavior in Sambva v4.11 that disabled SMB1 protocol by default. It’ll be interesting to see how this pans out in the rest of the Linux community … fortunately there’s a workaround!

Update: same on Debian 11 (bullseye) and Linux Mint 20 (Ulyana)

BSD syslogd in Linux

November 3, 2019 - 5 mins read

Some time ago now I was in a meeting with a customer where I first learned of the new syslog standard, RFC5424. I say “new” because, despite it being ten years old, it was new to me.

Three weeks ago I started updating my fork of sysklogd to be RFC5424 compliant. I ended up ripping out most of the old code and replacing it with fresh DNA strands from FreeBSD and NetBSD.

The result is a fully RFC compliant syslogd, and a libsyslog with a replacement syslog.h header for sending RFC5424 events from applications!

https://github.com/troglobit/sysklogd/

Basic CGI in C with Merecat httpd

August 5, 2019 - 2 mins read

merecat

This post is a writeup of how to use basic CGI programs in Merecat httpd v2.32.

No nonsense FTP/TFTP server

July 29, 2019 - 1 min read

FTP/TFTP server for Linux that just works™

Merecat httpd

July 19, 2019 (updated July 25, 2026) - 2 mins read

Merecat httpd is a tiny embedded web server forked from thttpd -- HTTPS, CGI, virtual hosts, and a reverse proxy in a ~160 kiB footprint.

Controlling Display Brightness

July 18, 2019 - 1 min read

About a year ago I wrote about a way to control the brightness on my x250. I found a lot of tools, and at the time I saw a lot of potential in light, which I even contributed to a lot. However, I ended up not using the evolved versions myself, and it took me a while to digest why. I think the project just outgrew me and what I wanted in such a tool.

XScreenSaver Fonts

July 7, 2019 - 1 min read

I run Awesome on Ubuntu 19.04 with XScreenSaver. This post is a brief writeup of what I did to fix the ugly default fonts.

HowTo: Set up Merecat with Let's Encrypt certificate

June 27, 2019 (updated July 15, 2020) - 8 mins read

merecat

This is a HowTo for setting up Merecat httpd with Let’s Encrypt HTTPS certificates.

The upcoming v2.32 release of Merecat supports HTTPS as well as serving more than one Internet port. This is highly useful for those who want to serve both HTTPS and HTTP content.

Update: now with support for --webroot and HTTP-01 renewal!

Minor Miracles

June 26, 2019 - 2 mins read

The last six months at work have been really stressful, so to finally get a week off for Swedish Midsummer celebrations was really what the doctor ordered! I’ve managed to wind down and relax, spend time with my kids and my family, and even put in some time on my personal software projects! Three years ago I forked thttpd and began merging patches I’d found scattered around the net. I’ve also added a few features of my own, and to avoid any confusion with the original (bug free!