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CoolCold

581 karma · joined February 26, 2022

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CoolCold··on Ubuntu is growing faster on Windows 11 than on native Linux PCs, says Canonical
I would not claim on best distro for all the types of tasks, but in certain areas, when you well, just need stable Linux compatible environment related to sysadmin and development tasks - indeed it rocks, agree.
CoolCold··on Ubuntu is growing faster on Windows 11 than on native Linux PCs, says Canonical
From the article:

> "expect to see more Ubuntu WSL users than ‘native’ Ubuntu users over the coming months.”

As happy WSL user myself, I can see why it grows and drives Ubuntu adoption too.

CoolCold··on Unsloth Desktop: Open-Source App for Local Models
> Search & RAG: Use private and unlimited web search, deep research, and RAG.

It mentions unlimited web search - I wonder how that works, implies not by some Google Search API?

CoolCold··on We replaced Redis with MySQL for inventory reservations and it scaled
my common dumb test approach with fio

  fio --rw=write --ioengine=sync --fdatasync=1 --directory=test-data --size=220m --bs=2300 --name=mytest
Consumer grade SSDs 100-500 iops, datacenter SSDs in thousands (like ~ 5 year old samsung model on Hetzher AFAIR had ~ 3000 iops in that test). Cheap VPSes - easily in 5-30 iops of this sort

more often then not, fsync/fdatasync is overlooked by programmers

CoolCold··on Beating GPT-5.6 Sol on retrieval with 100x cheaper open models
mind sharing hints/links on your harness/flow setup?

I did several attempts with naive prompting, but spent more time babysitting than actual flow

CoolCold··on Turn And Face The Strange
> but stuck with the concept by going with another company.

Mind giving a hint on another company name?

CoolCold··on Build 2026: WSL improvements and the new Containers CLI and APIs
embedding transparent containers into Windows native apps looks huge, extra cool is GPU access from container and mentioned OpenClaw like tool cases in mind, ports and folders.

Like the idea!

CoolCold··on Local privilege escalation via execve()
Yep

Try to search vacancies for FreeBSD or candidates with FreeBSD knowledge/background, you will be surprised, its desert.

Even TrueNAS realized it's a dead end for reaching wide audience needs and migrated to Linux (as you mentioned zfs, your probably heard a thing or two on TrueNAS).

I have not tried in the last 10 years, so don't have numbers, my ballpark figure about having small infra team say of 5 persons and try to hire for FreeBSD would be longer and more expensive.

I see somewhat tolerable Linux Corp fleet of laptops (still meh, but somewhat works), what you will reply to your users when they complain on WiFi or Zoom not working and how will procurement work for you interesting questions for me.

Red Book for FreeBSD animal, can meet somewhere deep in tundra, but not a widespread species- extinction form my POV.

CoolCold··on Local privilege escalation via execve()
Hard to tell about FreeBSD, it's basically extincted, but think of webhosting servers, wordpress, cPanel/Plesk and alike.

often it's ssh'able with things like rbash and other restrictions and almost always you, well, can run something there (as you can edit php/other files right from web management ui).

Hordes of this (in Linux world).

CoolCold··on Healthchecks.io now uses self-hosted object storage
You can wire lsyncd for near real-time syncs and btrfs snapshots for offline storage
CoolCold··on Building a TUI is easy now
I had bad feelings on MC, as it's flaky.

Far Manager or Dos Navigator are much better IMO.

CoolCold··on All your OpenCodes belong to us
> a RCE vulnerability is the type of thing that nation state actors in Russia and North Korea dream of

Does this mean other state actors are beyond needs of RCE vulns as their tools belt and North Korea and Russia lagging behind? Some other interpretation from security-involved practitioners here - like, I don't know - we already have Pegasus, phew on OpenCode RCE?

CoolCold··on Anthropic blocks third-party use of Claude Code subscriptions
Well, there is Aider-CE aka Cecli, which moves, updates almost every day (I'm tried to try it but much).

Opencode is totally different beast comparing to Aider and I mostly stopped using Aider for 2 months or so - it just iterate simpler and faster with OpenCode for me.

CoolCold··on Anthropic blocks third-party use of Claude Code subscriptions
Genuine question, as someone who never used Claude Code, but used OpenCode/Aider/GeminiCli - as many here say Opencode is better, mind sharing why (from end user perspective)?

I was thinking to try Claude Code later and may reconsider doing so.

CoolCold··on High-Performance DBMSs with io_uring: When and How to use it
> Figure 9: Durable writes with io_uring. Left: Writes and fsync are issued via io_uring or manually linked in the application. Right: Enterprise SSDs do not require fsync after writes.

This sounds strange to me, of not requiring fsync. I may be wrong, but if it was meant that Enterprise SSDs have buffers and power-failure safety modes which works fine without explicit fsync, I think it's too optimistic view here.

CoolCold··on Vibe Coding Killed Cursor
Note that Aider is not much maintained over last 3 months or so, there is a fork Aider CE, though I'm just watching their changes through rss and not used myself.

I'm more in Opencode world now and its in general more efficient for me (I'm sorta sysadmin by day, not a programmer, so agentic mode with Opencode saves a lot of time cuz you can just tell - write adhoc Python script and check which objects/methods present at that library- savings me from a boring part of you know programming/diving deep in unknown languages).

On Aider part, I especially liked ability to nitpick the function name, which is great for more focused changes/investigations.

CoolCold··on FediMeteo: A €4 FreeBSD VPS Became a Global Weather Service
Am I reading something wrong on Racknerd? https://www.racknerd.com/kvm-vps

> 1 GB RAM 2 vCore 50 GB RAID-10 SSD 1 TB @ 1Gbps 1 Free IP $17.99 /month

that's far from any sort of cheap, may be there is something very special with them?

CoolCold··on VA Linux: The biggest dotcom IPO
by WSL? Not my own experience, but I have couple of guys who still on Win10/WSL. Myself I've migrated to Win11 not sure when exactly, likely 4 years ago
CoolCold··on Isn't WSL2 just a VM?
I'm 99% sure ive seen such questions/requests on Reddit for Windows server.
CoolCold··on Advent of Sysadmin 2025
I feel your pain - bites me from time to time, especially in KVM ;)
CoolCold··on State of Terminal Emulators in 2025: The Errant Champions
it may happen that you just don't need it - the same way not everyone need to use vim/neovim.

without tmux/screen though, it's much harder, even less reliable, to work over ssh, so it becomes natural need for such sort of tools.

Say I use screen and later tmux since I believe ~ 2010 but not using "advanced" features like "panes" and screen splitting every month, most of the time for me it's just switching between windows in session and different sessions (not that often) and that's all.

As a helper, for some projects, I do use predefined layouts (say first 4 windows opens with inventory dir, other 2 with root folder of ansible repo) so on, but need this also not very often, like when laptop reboots (which is every ~ 3 week on Win11 nowdays)

CoolCold··on State of Terminal Emulators in 2025: The Errant Champions
Ctrl+Shift+F on my Windows Terminal - don't remember, have I've adjusted it or it's default behavior

I see in config file, actions { "id": "User.find", "keys": "ctrl+shift+f" },

so probably I did

CoolCold··on Microsoft keeps adding stuff into Windows we don't need
Indeed, I agree here, Linux, and basically Unix was not designed to work without administrator.

I would argue that more time was spent on thinking "how we do hotplug CPU on our machine" than on "how that user will work with USB drives".

CoolCold··on Microsoft keeps adding stuff into Windows we don't need
Well, built in feature of Reset PC will even download fresh iso for you and will boot in fresh install. Optionally you may ask to keep your files too.
CoolCold··on OpenFreeMap survived 100k requests per second
> [1] to be honest, I'm not sure I understand the intent of open_file_cache... Opening files is usually not that expensive

I may have a hint here - remember, that Nginx was created in the times of dialup was a thing yet and having single Pentium 3 server was a norm (I believe I've seen myself that wwwXXX machines in the Rambler DCs over that time).

So my a bit educated guess here, that saving every syscal was sorta ultimate goal and it was more efficient in terms of at least latency by that times. You may take a look how Nginx parses http methods (GET/POST) to save operations.

Myself I don't remember seeing large benefits of using open_file_cache, but I likely never did a proper perf test here. Say ensure use of sendfile/buffers/TLS termination made much more influence for me on modern (10-15 years old) HW.

CoolCold··on OpenFreeMap survived 100k requests per second
You are probably talking about VMs - those do have traffic limits. Servers, on the other side, with default 1Gbit NICs doesn't (let's say until you consume 80%+ of bandwidth for months)

Quoting:

> Traffic

>All root servers have a dedicated 1 GBit uplink by default and with it unlimited traffic. Inclusive monthly traffic for servers with 10G uplink is 20TB. There is no bandwidth limitation. We will charge € 1 ($1.20)/TB for overusage.

CoolCold··on Anandtech.com now redirects to its forums
I don't know how much traffic they have, but say even on overexpensive IBM servers hosting, serving ~ 100TB/month was around 5000$
CoolCold··on What to expect from Debian/Trixie
+1 from me for

> With swap enabled, it is very, very, VERY common for the system to become completely unresponsive - no magic-sysrq, no ctrl-alt-f2 to login as root, no ssh'ing in ...

It's usually enough to have couple of times when you need to get into distant DC / wait for some IPMI connected for couple of hours, to learn "let it fail fast and gimme ssh back" on practice vs theory on "you should have swap on"

CoolCold··on C++: Zero-cost static initialization
just curious, what would be the business direction to "Linux-only code"? Don't need any trade secrets, just quick expression on the area/target auditory.

I.e. - I have tried WSLg (running GUI apps in WSL) but disabled it all together, as after running xclock and couple of things like that to ensure it works, I couldn't find any interest in running GUI apps on Linux.

I can somewhat imagine need for work purposes, if you are falling into some webdev area and need to run some tests against local browser, but that's different from my POV.

CoolCold··on Linux and Secure Boot certificate expiration
just doublechecked with "Confirm-SecureBootUEFI" - says True on my laptop which used > 1 year. I'm pretty sure on the previous system which was used for 4 years it was on too - have not noticed any issues.

Windows 10 and then 11

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