IT Geek Notes
IT blog. Interesting tips and researches of AI, Security, Open Source, Microsoft Exchange and etc.
01 August 2026
Advanced Network Quality Test (ANQT) for Windows
Now, in the time of AI and LLMs, I can make my ideas real.
Today I made one old idea come true. It is a simple application to test Internet access.
We all know speedtest.net. But Internet access is not just about speed. It is many things together: local network at home or office, DNS, provider, firewalls, etc.
I wanted to make an application that can run different tests and show the quality as percentage (%).
Today, I published the first version of "Advanced Network Quality Test" for Windows. It has a graphical interface (GUI).
26 July 2026
Running OpenClaw 2026.7.1 in Podman rootless container
This is an overview of how to run OpenClaw version 2026.7.1 in a Podman container on a home server.
Why don't I run it on my personal Windows computer using the standard method "iwr -useb https://openclaw.ai/install.ps1 | iex"?
I don't want to run an uncontrolled AI agent on a computer that has my personal data and full admin rights. That is why I prefer an isolated Podman container in rootless mode.
Why don't I use the ready-made script "./scripts/podman/setup.sh"?
- I don't want to run third-party scripts.
- I don't plan to use the OpenClaw CLI.
- I don't want unnecessary files on my server.
- I don't want to build the image (podman build) directly on the server.
I planned to run OpenClaw with a single podman run command, but it was more complicated than I thought. In this post, I want to show what the problems were and how I solved them.
07 February 2026
Ugoos TV boxes comparison (February 2026)
I couldn't find a comparison of actual Ugoos TV boxes on one picture, so I decided to do it myself.
List of Ugoos devices in comparison:
- X4Q Cube, Pro, Plus
- X4Q Extra
- X5M PRO
- SK1
- SK2
- SK4
- AM7
- AM8
- AM8 PRO
- AM9
21 October 2025
Comparison of 4 LLM and agent-zero in an elementary pentest competition
My goals
- Get new experience with autonomous AI agents → agent-zero
- See how common (not specialized) AI agent could perform penetration tests
- Check several actual LLMs on pentest tasks
Attention
- This is not a real research and guide
- agent-zero and used LLMs are not intended for pentesting
- The results below do not indicate that the models are good or bad.
- The penetration test target is a local copy of OWASP Juice Shop (Probably the most modern and sophisticated insecure web application)
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| How AI see an AI agent |
28 September 2025
The pain of image generation in Kandinsky from n8n
- n8n Self-Hosted Community Edition 1.112.6
- Fusion Brain (Kandinsky) AI service — offers 100 free image requests per month
This turned out to be harder than I expected.
04 August 2025
NVIDIA CMP 50HX for AI: A Step-by-Step Guide
Since I couldn’t find a complete guide for using mining GPUs in AI, I’ll share my experience here.
What about drivers?
❌ NVIDIA’s website doesn’t offer special drivers for this card.
❌ NVIDIA A100 Data Center driver (v573.39 for Windows) also failed.
✅ The solution: Install CUDA Toolkit (v12.9.1 for me) and NVIDIA cuDNN.
29 June 2025
NVIDIA dedicated GPU for professional mining comparison
So I decided to create one myself.
- NVIDIA CMP 170HX
- NVIDIA CMP 100HX
- NVIDIA CMP 90HX
- NVIDIA CMP 70HX
- NVIDIA CMP 50HX
- NVIDIA CMP 40HX
- NVIDIA CMP 30HX
- NVIDIA P102-100
- NVIDIA P104-100
- NVIDIA P106-100
The information was collected from various sources, some of which provided conflicting data.
There may be different versions of these GPUs, resulting in differences in specs.
I can’t ensure the accuracy of all the information given here.
19 June 2025
What’s wrong with the Pixel Camera’s panorama mode?
It’s about the panorama mode in Google Camera. The quality of the final photo is very low. On my Pixel 4, the vertical resolution is only around 1700 pixels.
I looked online and found out this is not only my problem. It seems like this has been happening even on newer models like the Pixel 8 Pro.
My current Google Camera version is 8.7.250.494820638.44, and I also tried the newer version 9.2.113.604778888.19 (GCam), but the result was the same.
Some proofs:
- https://www.reddit.com/user/RazzmatazzWeak2664/ photo -
- Comparison between Pixel 8 Pro and Pixel 9 Pro – link . Look at the dimensions tab of Pixel 8 Pro photos — it’s only 1280 pixels vertically.
I'm sad about this, but I hope Google will fix it in the future. @Google, right?
17 November 2024
Troubles with accessing Samba/SMB share from Windows 10
I have two servers with Samba shares and I had triubles with accessing both of them from my Windows 10 (1809 LTS) PC.
| OS | TrueNAS 13.0-U6.2 | Ubuntu 24.04.1 LTS |
| Samba version | 4.15.13 | 4.19.5 |
| Samba config | ea support = No kernel share modes = No path = /mnt/RAID1/NAS posix locking = No read only = No smbd max xattr size = 2097152 vfs objects = fruit streams_xattr shadow_copy_zfs ixnas zfs_core aio_fbsd fruit:resource = stream fruit:metadata = stream nfs4:chown = true ixnas:dosattrib_xattr = false | comment = Torrent Server path = /torrents read only = yes browsable = yes guest ok = yes public = yes create mask = 0775 directory mask = 0775 force create mode = 0775 force directory mode = 0775 |
31 March 2024
Which is faster: 0.0.0.0 or 127.0.0.1?
When I was experimenting with hosts and Pi-Hole, I read that "0.0.0.0" address in the hosts works faster thфn "127.0.0.1". And now I decided to test and verify it.
About tests
- To automate tests I prepared code on Python "DNS_Loopback_Speed".
- To get more accurate results I performed 10000 tests for each address and took the average.
- I have two devices running Windows 10 and Ubuntu 22.04, so I also compare speed of resolving between Windows and Linux.
- I've seen option of using 127.0.0.0 in hosts, therefore I add it too.
- Just to compare delays between local resolution (hosts) and external DNS servers I add 2 tests (my local Pi-Hole DNS and Google DNS). My devices connected to network via Wi-Fi, so results may not be reliable.
Brief information regarding these IP addresses:
- 0.0.0.0 - non-routable meta-address
- 127.0.0.1 - loopback Internet protocol address = localhost
- 127.0.0.0 - loopback network address


