Over the past year or so I found myself returning to my own blog to remind myself how I did things in VyOS and how I configured this or that thing or whatever. Each time I sort of hated the fact the theme was crap. Blogger themes are so dated, they remind me a little of Geocities now. I know that dates me somewhat too, but anyways. They suck and brosing for something that isn’t terrible seems more and more futile.
node_exporter in VyOS 1.4
So it turns out that if you want metrics from VyOS, your two options are SNMP or Telegraf (towards InfluxDB).
SNMP is one of those things that has been around so long, you think its good, but really, its trash. Its a 1990s technology that is mostly singlethreaded and provides you very very fuzzy numbers. 5 min averages are not that useful in situations like today where clients plausibly have access to gigabit+ grades of connectivity. If you cant observe let alone react to a microburst, you’re pretty much blindfolded in a modern DC network setting.
My Fiber7-X VyOS Config
Updated Jun 2024: This Vyos 1.4 config is now broken if you use a recent vyos 1.5 rolling release. I made a new post here that mirrors this one, but with the correct syntax!
Updated Aug 2022: After moving house I have been able to split my install between the basement and the house, so I bought myself an Dell Optiplex 7050 to be the VyOS router (the OTO is in the house), and then run a 10G fibre to the basement for the rest of the stuff. I think I will leave the post as is because the VM method is more interesting, but I will add a block on that below.
10/25 Gbit Internet at Home - a very 21st Century Problem
When I first arrived in Switzerland in 2017, aside from the clean air, beautiful countryside, and the promise of a highly paid job with which to support my family, I was transfixed by something that seemed completely alien to me - Fibre to the Home. Yes, I am a nerd, and Yes somewhat parallel to a comfortable living space, and good local schools, I made sure each house viewing included a search for an OTO. No Fibre, no way.
The even-ended number problem in Go and Python
During the Go Essential Training course on LinkedIn, the instructor sets up a problem for you to solve. The solution is in the next slide of the course, and mine was ever so slightly different anyways, so I doubt that this needs to come with a spoiler alert, but anyways…
An even-ended number is one that starts and ends with the same digit. That is to say 1, 11, 121, and 10103921 are all even ended numbers as they all start and end with the same digit.