Pavel Valach 

210 Followers
231 Following
1.7K Posts
Maybe a little unhinged. Likes chocolate. 🇨🇿 & 🇬🇧 posts of ~200 characters. Cyber. Member of @cesnet_certs and SOC. Trying the Czech instance at @paulos now :)
Personal sitehttps://paulos.cz
Bloghttps://noise.paulos.cz
Favorite animalsowls and turtles
If you run a mastodon instance, it's time to patch. Some high severity security 🐜 🐞 🐝 got fixed today.
When I was much younger, I learned 2 very important lessons. I forget what the first one was but the second one is to write everything down.

OK #Firefox users, this is a special request. I'm looking for someone with a high-end Raptor Lake machine that is experiencing instability in Firefox (or anything else for the matter). The best candidate is a CPU from the 13900* SKUs. K or not doesn't matter as long as it's one with the 8P+16E cores.

We have a potential workaround for one of the most common bugs of this CPU, but we need a broken machine to test it.

Den IPv6 2026

4. června 2026
Národní technická knihovna v Praze

https://denipv6.cz/cs/

#ipv6 #cz

IPv6 2026 - Den IPv6

regular folks: "measure twice, cut once"
vibe coders: "ALWAYS tell your saw to CUT IN THE RIGHT PLACE"

I have just recently rediscovered a screenshot of a GNOME Disks app saying:

"Disk is OK, 15922 bad sectors"

Of course, that status changed quickly to "failing" once a SMART test was run...