VirtualTam's bookmarks

1. Microsoft Desired State Configuration v3 2025-01-13

   tags: infrastructure/automation, programming/c#, programming/go, programming/powershell, programming/rust

   [ permalink ]

   • Get-Test-Set
   • PowerShell Team 2021 Investments
   • powershell/dsc
   • powershell/psdesiredstateconfiguration
   • PowerShell/DSC-Samples
   • Write your first DSC Resource in Go
2. Text normalization in Go 2024-11-28

   tags: ietf/rfc, programming/go, text/ascii, text/unicode

   [ permalink ]

   Standard library:

   • unicode - Data and functions to test some properties of Unicode code points

   Extra libraries:

   • golang.org/x/text - Supplementary Go packages for text processing, many involving Unicode
   • golang.org/x/text/runes - Tansforms for UTF-8 encoded text
   • golang.org/x/text/transform - Reader and writer wrappers that transform the bytes passing through
   • golang.org/x/text/unicode/norm - Types and functions for normalizing Unicode strings
   • golang.org/x/text/unicode - Building blocks for other packages in golang.org/x/text

   Third-party libraries:

   • anyascii/go - Converts Unicode characters to their best ASCII representation

   RFCs:

   • RFC 8264 - PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols
   • RFC 8265 - PRECIS for Usernames and Passwords
   • RFC 8266 - PRECIS for Nicknames

   Resources:

   • Unicode - General Category Property
   • Diacritic
   • Unicode Equivalence
   • Unicode Equivalence - Normal Forms
   • When to use Unicode Normalization Forms NFC and NFD?
   • Remove diacritics using Go
3. DNS over HTTPS 2024-11-25

   tags: cryptography/encryption, ietf/rfc, internet/browser/chrome, internet/browser/firefox, network/dns, network/http, network/transport-layer-security

   [ permalink ]

   RFCs:

   • RFC 7858 - Specification for DNS over Transport Layer Security (TLS)
   • RFC 8484 - DNS Queries over HTTPS (DoH)

   Resources:

   • Carsten Strotmann - doh.defaultroutes.de DNS-over-TLS/HTTPS Server
   • DNS over HTTPS - Cloudflare 1.1.1.1 Documentation

   Setting up a DNS-over-HTTPS server:

   • DNS over HTTPS - ArchWiki
   • DNS-over-TLS almost working - Træfik Forum
   • Using Google’s dns.google.com with CoreDNS

   Browser configuration:

   • Configure DoH on your browser - Cloudflare Documentation
   • Using custom DNS-over-HTTPS with CoreDNS and Google Chrome
   • Firefox DNS-over-HTTPS - Firefox Help
4. Image Dithering - Create the illusion of color depth in images on systems with a limited color palette 2024-11-18

   tags: color/palette, game, image/2d, image/compression, image/dithering, image/noise, indie

   [ permalink ]

   • Re: Return of the Obra Dinn [GDC 2016 Demo Build] - Dithering Process
   • Ditherpunk — The article I wish I had about monochrome image dithering
   • Cyan's Richard A. Watson - Dithering 101 (archive)
   • Differentiable Dithering
   • What the Heck is Blue Noise?
   • Generating Blue Noise Textures With Void And Cluster
     • Atrix256/VoidAndCluster
     • jdupuy/BlueNoiseDitherMaskTiles
   • Why Your Website Should Use Dithered Images
     • Dither Me This!
   • Why Your Website Should Not Use Dithered Images

   Online dithering tools:

   • Dither It! - A Web application to dither images
     • alexharris/ditherit-v2
   • Building Retro Dither: Dithering Algorithms, Run-Length Encoding, Resource Forks and More!
   • Blue Noise in Futhark
     • Munksgaard/bluenoise
5. Educational Technology Clearinghouse - Resources 2024-11-10

   tags: education, geography, image, map, presentation

   [ permalink ]

   • Clipart ETC - Illustrations
   • Clippix - Photos and pictures
   • Maps - Historic maps spanning many different time periods
   • Presentations - Backgrounds, templates, letters, frames, and buttons
6. SSHFP - Secure SHell FingerPrint DNS Records 2024-10-27

   tags: cryptography/elliptic-curve, network/dns, network/dnssec, network/ssh

   [ permalink ]

   • IANA - DNS SSHFP Resource Record Parameters
   • ssh - How do I generate SSHFP records?
   • Oh SSH-it, What’s My Fingerprint? A Large-Scale Analysis of SSH Host Key Fingerprint Verification Records in the DNS
     • gehaxelt/sshfp-dns-measurement
     • APNIC - Improving SSH’s security with SSHFP DNS records

   RFCs:

   • RFC 4251 - The Secure Shell (SSH) Protocol Architecture
   • RFC 4255 - Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints
7. InfluxDB Tech Tips — Optimizing Flux Performance 2024-06-01

   tags: observability/time-series/influxdb

   [ permalink ]

   • Top 5 Hurdles for Flux Beginners and Resources for Learning to Use Flux
   • Top 5 Hurdles for Intermediate Flux Users and Resources for Optimizing Flux
   • Optimize Flux queries
   • Sort and limit data with Flux
8. The Zephyr Project - A scalable real-time operating system (RTOS) for use on resource-constrained systems 2024-03-08

   tags: embedded, operating-system, posix, programming/c, programming/python, time/real-time

   [ permalink ]

   • zephyrproject-rtos/zephyr
   • West, Zephyr's meta-tool
   • Introduction to Zephyr
   • Products running Zephyr
9. Scaphandre - A metrology agent dedicated to electric power and energy consumption metrics 2024-02-15

   tags: electricity, observability/metrics, observability/time-series/prometheus, power, programming/rust, server, virtualization/qemu

   [ permalink ]

   • The road to Scaphandre v1.0 - Challenges and improvements to come on IT energy consumption evaluation
   • Scaphandre v1.0 is here : Windows support, IT resources metrics, packaging, and more...
10. Elasticsearch - Grok processor 2023-11-19

    tags: observability/elastic/elasticsearch, observability/elastic/logstash, observability/logging, programming/go, programming/java, programming/regular-expressions, programming/rust

    [ permalink ]

    • Elastic - Grokking Grok
    • Kibana - Debug grok expressions
    • Grok Constructor
    • Elasticsearch Grok Patterns
    • Logstash Grok Patterns

    Alternative implementations:

    • vjeantet/grok - Simple library to use/parse grok patterns with Go
      • GuanceCloud/grok - Fork of the above
      • logrusorgru/grokky - Pure golang grok-like library
      • Telegraf's Grok Parser Plugin
    • Vector Remap Language - Datadog Grok Parser
11. Regex engine internals as a library 2023-07-14

    tags: programming/c++, programming/go, programming/regular-expressions, programming/rust

    [ permalink ]

    • rust-lang/regex
    • google/re2
    • BurntSushi/rebar - A biased barometer for gauging the relative speed of some regex engines on a curated set of tasks
    • Resources about implementing regular expression search efficiently, Russ Cox
12. Programming Kata Resources 2021-10-23

    tags: programming/kata, programming/test-driven-development

    [ permalink ]

    • http://codekata.com/
    • https://github.com/ardalis/kata-catalog
    • https://github.com/gamontal/awesome-katas
    • https://codingdojo.org/kata/
    • https://kata-log.rocks/
    • https://github.com/eficode-academy
13. Call APIs with Terraform Providers | Terraform - HashiCorp Learn 2021-04-15

    tags: configuration-management/terraform, infrastructure/automation, network/http, programming/api

    [ permalink ]

    • https://www.hashicorp.com/resources/creating-terraform-provider-for-anything
    • https://boxboat.com/2020/02/04/writing-a-custom-terraform-provider/
    • https://medium.com/spaceapetech/creating-a-terraform-provider-part-1-ed12884e06d7
    • https://medium.com/spaceapetech/creating-a-terraform-provider-part-2-1346f89f082c
14. JVM G1GC Fundamentals: Lessons from Taming Garbage Collection 2020-03-16

    tags: jvm, memory/garbage-collection, openjdk, performance, programming/java

    [ permalink ]

    • https://www.oracle.com/technical-resources/articles/java/g1gc.html
    • https://wiki.openjdk.java.net/display/HotSpot/G1GC+Feedback
    • https://openjdk.java.net/jeps/248
15. SEI CERT C Coding Standard 2020-01-02

    tags: guidelines, programming/c, programming/c++, security

    [ permalink ]

    • https://resources.sei.cmu.edu/library/asset-view.cfm?assetID=454220
    • https://www.informit.com/store/secure-coding-in-c-and-c-plus-plus-9780321822130
16. Coding Standards for pure C (not C++) - Stack Overflow 2019-11-07

    tags: guidelines, programming/c

    [ permalink ]

    • https://stackoverflow.com/questions/415452/object-orientation-in-c
    • https://sites.google.com/site/cinterfacesimplementations/
    • http://web.archive.org/web/20190125125043/http://homepages.inf.ed.ac.uk/dts/pm/Papers/nasa-c-style.pdf
    • https://www.maultech.com/chrislott/resources/cstyle/
    • https://wiki.sei.cmu.edu/confluence/display/c/SEI+CERT+C+Coding+Standard
17. /r/golang | Learning Distributed systems 2019-09-16

    tags: data, distributed, distributed-system/cluster, network, programming, programming/go

    [ permalink ]

    • https://github.com/golang/go/wiki/Courses
    • https://dataintensive.net/
    • https://columbia.github.io/ds2-class/
    • https://github.com/brendandburns/designing-distributed-systems-labs
    • https://azure.microsoft.com/en-us/resources/designing-distributed-systems/en-us/
    • https://www.distributed-systems.net/index.php/books/distributed-systems-3rd-edition-2017/
18. inventaire: a libre collaborative resource mapper powered by open-knowledge, starting with books! 2019-08-21

    tags: book, collection, library, self-hosting

    [ permalink ]

    • https://github.com/inventaire/inventaire-deploy
19. JVM threads and resource usage 2019-08-01

    tags: concurrency/threading, jvm, linux, programming/java, system

    [ permalink ]

    • https://stackoverflow.com/questions/34452302/how-to-increase-maximum-number-of-jvm-threads-linux-64bit
    • https://stackoverflow.com/questions/10487840/java-limiting-resource-usage
20. Blaeu, creating measurements on RIPE Atlas probes 2019-04-15

    tags: internet, internet-service-provider, network, network/dns, network/ip, sysadmin

    [ permalink ]

    • https://atlas.ripe.net/
    • https://www.ripe.net/manage-ips-and-asns/resource-management/faq/independent-resources/phase-three/what-is-a-local-internet-registry-lir
    • https://labs.ripe.net/Members/stephane_bortzmeyer/using-ripe-atlas-to-debug-network-connectivity-problems
    • https://github.com/RIPE-Atlas-Community/ripe-atlas-community-contrib
    • https://www.bortzmeyer.org/dns-over-tls-atlas-measures.html