Author Archives: tim

HP Workstation

Posted on May 7, 2022 by tim

The goal of this machine to experiment with mid-range video editing and/or be a monster Virtual Machine Server. It was refurbished, from PC Server Parts Certified Refurbished. It kept going in and out of stock. It arrived in a big … Continue reading →

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Amazon S3 ETag Advanced Information

Posted on April 10, 2022 by tim

You are probably here because you looked at one of your S3 object’s ETag, and it had a dash character (“-“) in it. Most of your other ETag values are simple and correct md5sum hashes. But this one is weird. … Continue reading →

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Dell 3020 SFF

Posted on February 19, 2022 by tim

The goal of this machine was to buy a complete (monitor included) machine for less than $300, taxes and shipping included. It was refurbished, from Blair Technology, “on sale” from $480. It arrived in a big box that contained two … Continue reading →

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ASUS ROG

Posted on January 6, 2022 by tim

This is a prebuilt machine purchase. Asus Model G15CE-B9. (Price comparisons: newegg is selling it for $1,944 via Coldriver20; amazon is selling it for $1,815 via J-Tech Digital). Some facts on the CPU: it is currently #202 on PassMark [21,574, … Continue reading →

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Video Card Relative Benchmarks

Posted on November 23, 2021 by tim

Name Bench mark CUDA cores Tensor cores Notes RTX 4090 ? 16,384 ? 24GB GDDR6X $1600 2022/Sep RTX 4080 ? 9,728 304 16GB GDDR6X $1200 2022/Sep RTX 4080 ? 7,680 240 12B GDDR6X $900 2022/Sep RTX 3090Ti 29,342 10,752 336 … Continue reading →

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Core i5-10400

Posted on October 17, 2021 by tim

This is a rebuild of the Core 4770k machine. The machine started spontaneously shutting off, then entering a “power-on for 3 seconds and power-off” loop. After cooling down, it would stay running for ~20 minutes, then shutdown. BIOS says the … Continue reading →

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Kubernetes and Buildah and microk8s

Posted on July 27, 2021 by tim

Kubernetes is awesome. But it is very annoying to be halfway through a guide just to have that guide “drop into” docker. Kubernetes _can_ use docker, but it doesn’t _need_ docker. In particular, this is true of microk8s. If you … Continue reading →

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Naming and Security

Posted on April 24, 2021 by tim

Came across an interesting configuration file pattern today: conf: nova: keystone: insecure: true neutron: insecure: true glance: insecure: true cinder: insecure: true barbican: verify_ssl: false The interesting thing is … Continue reading →

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WordPress Comment Spam

Posted on December 29, 2020 by tim

A quick note on WordPress spam in comments – Starting 2020 November 26th and continuing until 2020 December 17th, a spammer created a bunch of comments on the one page that had accidentally allowed comments – “About” In total, there … Continue reading →

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RetroPie Raspberry Pi 4

Posted on September 15, 2020 by tim

Item Product Cost Pi 4 CanaKit Raspberry Pi 4 Basic Kit 1.5GHz 64-bit quad core ARMv8, USB-C 3.5A Power, USB-C Power switch $55 MicroSD SanDisk 64GB Ultra microSDXC USH-I $12 Case RETROFLAG NESPi 4 Case with SSD Case, USB-C Power … Continue reading →