Wireguard and DNS Timeout
For a while now my Wireguard VPN provider has been handing out a bad DNS server. So whenever I do a DNS lookup it takes five (5!) seconds timing out, which is quite annoying.
This blog post is about how you can fix this with
openresolv in Ubuntu.
HowTo: Set up Merecat with Let's Encrypt certificate
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
--webrootand HTTP-01 renewal!
Fixing file sharing in Debian/Ubuntu/Mint
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)
Open Source Releases
The last couple of months have been crazy. The downturn in the economy due to Covid-19, mass layoffs, social distancing and quarantine. Not to mention the unrest in US and Europe in the wake of George Floyd’s uneccessary death.[Read More]
Fix blinking WiFi LED on X200
Recently got my hands on a ThinkPad X200, the last model without the useless touchpad and with the awesome classic keyboard. A fine little machine that can easily be upgraded with an SSD disk and 8 GiB RAM!
I set it up with Linx Mint (LMDE 4), which worked great to begin with, but there was some odd issue with X/Wayland that sometimes caused the screen (only the screen) to freeze up and show random color patterns. Only way to workaround it was to suspend, wait, and resume again. So now I’m running Ubuntu 20.04 on it and everything seems to work a lot better, this far.[Read More]
HowTo: Install pre-built packages
Every now and then people ask me for pre-built packages of software I maintain. Up until today I’ve had to refer them to the cold hard build instructions for each of my programs.[Read More]
Set up a Debian/Ubuntu APT Repository
How to set up a Debian/Ubuntu APT repository with GPG signing.
I’ve tried to document my steps here, but I’ve very likely missed a few steps that a beginner admin may run into. YMMV B-)[Read More]
Useful UNIX API:s
Had an interesting conversation with a buddy last night. It started out as a shift-reduce problem with Bison and ended up a ping-pong of useful UNIX API:s. We concluded that despite having worked professionally with UNIX for over two decades, it is still very satisfying finding gems like these.
Most people are completely unaware they exist and end up rolling their
own (buggy) implementations. For instance, string manipulation and
various forms of linked lists. Which is why I many years ago extracted
the frog DNA from Finit to a
separate library called libite,
or -lite for short. It imports the OpenBSD
strlcpy() family of API:s,
queue.h with the
_SAFE iterators, and more. Some people
like libbsd for this, but I’ve
found many of the ports incomplete and unsafe and prefer to stay closer
to the upstream *BSD versions.
Update: This post was originally written Nov 14, 2015. It was a Saturday and I remember being extremely inspired when I wrote it. I’ve continued adding to it over the years, and still do. So, as of Jul 2, 2017 I’m bumping the modification date each time I add something new :-)[Read More]