Joachim Wiberg

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!

Protocol Independent Multicast, PIM, allows existing networks to route IP multicast, regardless of what unicast routing protocol is in use.

This HowTo attempts to give some insight into the basics of setting up multicast routing.

This post is an update of what’s happened since last I posted about my many pet projects.

A lot has happened since my last post; I had my bike stolen, stumbled upon the guys who’d stolen it, got mugged by same guys, decided I’d had enough and then bought a house and moved to another city.

Reminder to self: How to fix Firefox about:config when using a Dark Theme in Gnome or Awesome.

Having just received a new (used) ThinkPad X250 I felt somewhat lost when I realized the display brightness keys didn’t do anything in my Awesome WM setup.

Last three months have been hectic, lots of exciting things going on at work, with my kids, and also with some of my pet projects.

This mini HowTo describes how to use the SNMP client tools to retrieve human readable information from devices running an SNMP daemon.

Summer is almost upon us.

This post details how to set up cgit with Merecat httpd.

Anyone who knows me knows I’m quite stubborn.

GRE tunnels are useful in many ways.

How to set up a Debian/Ubuntu APT repository with GPG signing.

I still get asked this, from time to time.

This post details how to package and deploy software with Docker.

How to install LXDM + XFCE4 in Alpine Linux 3.6 when testing with Finit.

It’s fairly easy to replace the slightly unfriendly syslinux with grub (grub2) in Alpine Linux.

Reminder to self: echo "https://ftp.eu.openbsd.org/pub/OpenBSD/" >/etc/installurl pkg_add git autoconf automake libtool Select the latest versions, then add the following to ~/.profile: AUTOCONF_VERSION=2.69 AUTOMAKE_VERSION=1.15 export AUTOCONF_VERSION A…

This is a HTTPS proxy HowTo for Merecat httpd using pound and OpenSSL.

This is a HowTo for setting up ikiwiki with Merecat httpd.

Having worked with Linux for the last 20 years, and embedded for more than ten of them, I’ve become quite a fan of virtualization in general and Qemu in particular.

The last game I ever played was Castle Wolfenstein 3D, released in 1992 for MS-DOS, made by the now legendary id Software.

This is a quick writeup of how to get the Trust Bluetooth 4.0 adapter (dongle) working in Linux, Ubuntu 16.04.

Fig 1.

For some odd reason, today was the day when I woke up and continued working on libICMP.

This post is about my adoption, refactor, and rebranding of thttpd as Merecat.

Finally, fresh from the oven, here are the remaining two toolchains I’ve promised, based on GCC 6.1 and GLIBC 2.23.

First GCC 6.1 based ARM (32-bit) toolchain released on my FTP.

Today the new logo for Finit3 was added to the GitHub repo and the homepage Gorgeous, isn’t it?!

OK, so here’s the general idea: take one teaspoon of a well equipped SBC with Marvell chips you know well, add an awesome WiFi hotspot with USB connection, stir feverishly for several weekends in a row, then sprinkle some AlpineLinux and a custom kernel on

With the new servers and my server room shaping up, I’ve been working on setting up ALL THE THINGS!

The other day I got my geeky hands on two old SuperMicro X8STI-F 1U servers.

This is a very brief writeup of how to upgrade the BIOS on a X1 Carbon (G1) from Linux.

Recently I needed a simple TCP/UDP port redirector and stumbled upon this Stackoverflow post.

So you’re having a problem with the Internet daemon you wrote.

How do you know when your UNIX service (daemon) is ready?

After the rm -rf /* disaster that hit me a couple of weeks ago I’ve been rebuilding my setup, restoring the few files I’ve had backed up, and collecting advice from the elders.

Days like these inconspicuously start out just like any other day, except on days like these you accidentally manage to erase $HOME and have no real backup to rely on … Maundy Thursday will forever be Black Thursday for me, from now on.

Recently issue #70 was reported to pimd.

For the better part of the last ten years I have been working with multicast in one way or another.

Had an interesting conversation with a buddy last night.

I vanlig ordning bashar vi DNS på jobbet, pga ofungerar hårt över VPN för de flesta.

Back to using the Awesome WM in Ubuntu.

Sometimes I just cannot help myself.

This is not a proper HowTo, more of a “note to self” after having created a setup to test pimd issue #57.

Summer is now slowly fading away, and what a summer it has been here in Sweden!

Reminder to self: you need to set up the PKG_PATH to the correct FTP URI.

This is an introduction to HowTo run pimd on OpenBSD.

Years ago while looking for a fast init replacement for work, I found Finit.