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Index

MQTT benchmark of HiveMQ, VerneMQ, Mosquitto and FlashMQ

Watch this demoscene style benchmark of HiveMQ, VerneMQ, Mosquitto and FlashMQ: https://youtu.be/vZWLitdCkJQ Read More »

Breaking amplifier fault current with relays and MOSFETs

https://www.youtube.com/watch?v=XIfdHpx9V1E Read More »

FlashMQ version 0.8.0

Just released FlashMQ version 0.8.0, a multi-threaded (multi-core) lightweight MQTT server. The latest new feature is a native authentication plugin interface for easy implementation of custom authentication and authorization. Read More »

Gitlab ‘Your password expired. Please access GitLab from a web browser to update your password.’

I just fixed a very obscure error in Gitlab of 'Your password expired. Please access GitLab from a web browser to update your password.' This error would appear during SSH operations, and in various log files in /var/log/gitlab. Also XHR requests to the server got that response. Read More »

Introducing MQTT server FlashMQ version 0.5.0

Introducing my the MQTT server that I've been working on, FlashMQ. I'm starting with test version 0.5.0. It's ready for some testing and benchmarks, and of course development will continue. Read More »

Disable roaming profile for one user on a Samba domain controller

Sometimes you want to mix users with and without a roaming profile. As found here, you can use Samba's pdbedit to set the "Profile Path" to empty: Read More »

Exhaling on YouTube

I've created a YouTube channel separate from my private account and branded it “BigSmoke”. The channel's purpose is to breathe some fresh air into some online discussions that I follow(ed). Actually, the content is the sort of content that I used to want to put more of on BigSmoke, but which I now found to be better suited for long-form discussions than for laying down my views from some ivory tower. Read More »

Icinga 2 dependencies, downtimes and host/service unreachability

There are a few gotchas you have to be aware of when working with Icinga 2 dependencies and downtimes. Read More »

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 »