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Category: Technology

Speed up xsltproc xhml – install DTDs

I keep forgetting which package to install in Ubuntu to get the DTDs for html, to stop xsltproc from hanging forever. So, for posterity: w3c-sgml-lib. I think it was w3c-dtd-xhtml in Ubuntu 16 and older. Read More »

Setting up a Zimbra authenticated proxy

On March 18th, Synacor posted about a critical Zimbra security vulnerability (CVE 2019 9670), which was quick to be exploited in the wild, and subsequently evolved to be harder to erradicate. Read More »

Programming my friend’s remote

I built a sound system for a friend, and programmed Philips RC5 remote control into the microcontroller. I recently ordered this remote: Read More »

Git and Tig config base

Here's just a quick .gitconfig: [core] commentchar = % [tig "color"] date = cyan black bold diff-header = cyan black [tig] ignore-case = yes Read More »

Attempt to repair short on motherbord

At work, we had a small embedded PC that had a short in the mainboard. I attempted a fix, mostly for educational purposes. It wasn't successful, but I wanted to post the method and result anyway. The method I used is elaborately explained on Youtube, so go hunt there for more details. Read More »

Garbled screen in tmux on Ubuntu 18.04 in Konsole

There is a bug in Konsole with tmux: lines often aren't cleared properly. To fix, put this in tmux.conf: Read More »

Nginx maintenance page

Just some example code for an nginx maintenance page: server { listen 80; listen 443 ssl; server_name www.example.com; Read More »

Softstarter (ballast start) relay charred after years of use

This is an interesting case. I made a sound system for a friend in 2012. In it is a soft-starter, that engages the heavy transformer through a ballast, so that the fuse doesn't trip. This is it: Read More »

Digital audio passthrough on TVs

I was researching how TVs pass through audio coming in from HDMI, and I found this. Just dumping it here as memory. Read More »

Spectre and Meltdown Status

Just some quick links with the status of Spectre and Meltdown: Read More »