Author Archives: tim

Naming and Security

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

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

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

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FreeNas 11 ZFS Replace Failed Drive

This documents the steps to replace a failed drive in a mirror configuration in FreeNAS 11.1-U7. This process is really easy with FreeNAS. This scenario is in contrast to replacing a failed drive before it fails (in a Centos “ad-hoc” … Continue reading

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Crossword Puzzle Data Format

The biggest crisis in computer science today is the lack of a good crossword puzzle data format. There are some existing formats: XPF Universal Crossword Puzzle Data Format – XML based, minimal redundancy, answers summarized in grid Yet Another Crossword … Continue reading

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jq pattern for terrible JSON

Many JSON formats are completely brain dead. Instead of the natural { key : value }, these formats go “all meta’, using { Field: “name”, Value: “amateur” } or { “name” : “name”, “value”: “amateur” }. This “meta key-value” approach … Continue reading

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GraphQL with curl examples

GraphQL curl command examples, showing you both the curl command and the graphql schema. Project link: graphql-java-codegen-gradle-plugin This is documentation for the combination of: A realistic graphql schema An actual Java server that implements that graphql schema Using curl to … Continue reading

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AMD Ryzen Build

Some facts on the CPU: it is currently #135 on PassMark [16,9499] cpubenchmark.net. The video card was the least expensive PCI available at Micro Center. This build is intended for two distinct purposes. The first is a general-purpose, install linux, … Continue reading

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ZFS replace drive before it fails

The main Virtual Machine Server was seeing hardware failures and ZFS “scrub not zero bytes”. One of the (cheap) Hitachi Ultrastar 2TB disks was starting to fail, after only 1.5 years. Smartctl was showing 53 recent errors. pool: vmstorage state: … Continue reading

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Core i7-9700K Build

Some facts on the CPU: it is currently #67 on PassMark [17,329] cpubenchmark.net. It was launched 2018 October. It used 14mm architecture and does not have hyperthreading. Since the “i7-9700”, i.e. non-K, does not exist (and may never exist) this … Continue reading

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