VirtualTam's bookmarks

1. ElectroPortis - The famous SGI/IRIX ElectroPaint(tm) screensaver by David Tristram, ported to Windows 2024-11-26

   tags: art, graphics/2d, programming/c, programming/c++, programming/javascript, screensaver

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   • Electropaint History (archived 2011-07-26)
   • Silicon Graphics - Irix - ElectroPaint screen saver
   • iamralpht/elektropaintjs - Electropaint screensaver from IRIX in JavaScript

         __    __
        /..\ /| |'-.
       .\_O/ || |   |   OH WOW
    _ /  `._ \|_|_.-'  FREE SOFTWARE
   | /  \__.`=._) (_
   |/ ._/  |"""""""""|  LET ME IN
   |'.  `\ |         |   ON THIS
   ;"""/ / |         |
    ) /_/| |.-------.|
   '  `-`' "         "
   

2. XScreenSaver - A collection of free screen savers for X11, macOS, iOS and Android, by Jamie Zawinski and many others 2024-11-26

   tags: graphics/2d, graphics/3d, history, jwz, screensaver, x11

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   • I have ported XScreenSaver to the iPhone.
   • XScreenSaver 5.35
   • XScreenSaver 6.09 out now
   • Zygo/xscreensaver - The closest thing to a git repo of xscreensaver known to exist, because jwz Does Not Do Github
3. Making USB devices - end to end guide to your first gadget 2024-11-19

   tags: electronics/pcb, embedded, microcontroller/st-microelectronics/stm32, programming/c, serial-communication/usb

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   • Build own USB device on linux-based board!
   • What Are Differential Pairs?
   • How to route USB data lines on a PCB
   • Can You Route USB 2.0 on a 2-Layer Board?
   • KiCad STM32 Hardware Design - An Overview in 20 Minutes - Phil's Lab #15
   • STM32 Programming via USB (DFU) - Phil's Lab #72
   • How To: STM32F103C8T6 As An USB Device (Virtual Serial Port / CDC)
4. Porting C to Rust for a Fast and Safe AV1 Media Decoder 2024-09-13

   tags: audio, codec/av1, multimedia, programming/c, programming/rust, video

   [ permalink ]

   • memorysafety/rav1d
5. go-http-metrics - Modular HTTP middleware to measure HTTP requests 2023-07-26

   tags: network/http, observability/metrics, observability/time-series/prometheus, programming/go

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   • Expose Prometheus metrics in a separate port in golang
6. Kubectl Cheat Sheet 2023-07-12

   tags: command-line, linux/container/kubernetes, programming/json

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   • How to filter pods by partial name
   • Field Selectors
   • JSONPath support
   • How to Make Kubectl Jsonpath Output On Separate Lines
   • Use Port Forwarding to Access Applications in a Cluster
7. go-httpbin - A reasonably complete and well-tested golang port of the httpbin service 2023-06-11

   tags: linux/container/docker, network/http, programming/go

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8. (A few) Ops Lessons We All Learn The Hard Way 2023-02-18

   tags: cloud-computing, network/dns, programming/shell, sysadmin

   [ permalink ]

   28. Blocking TCP port 53 traffic leads to very strange failures. Don't.
   29. The source you're looking at is not the code running in production.
   30. "Prod" is just another name for "staging".

9. A Guide to Porting C/C++ to Rust 2022-12-18

   tags: programming/c, programming/c++, programming/rust

   [ permalink ]
10. EI2030 Working Groups aims to create a laptop using e-ink or similar non-emissive technology 2022-05-02

    tags: display, diy, e-ink, embedded, laptop, linux, raspberry-pi

    [ permalink ]

    • https://github.com/EI2030
    • https://alexsoto.dev/modos-paper-laptop.html
    • https://forum.ei2030.org/t/proposal-ei-2030-the-community-built-e-ink-laptop-project/118
    • https://alexsoto.dev/building-an-e-ink-laptop.html
    • https://forum.ei2030.org/t/papertop-laptop/136
    • https://forum.pi-top.com/t/buying-another-power-supply-for-pi-top4/481/10
    • https://forum.ei2030.org/t/low-power-e-paper-os/138
    • https://www.youtube.com/watch?v=AIz8JL6xc9A
    • https://forum.ei2030.org/t/research-porting-linux-to-ultra-low-power-microcontroller/151/1
11. Docker and Kubernetes userland proxies, versus exposing wide port ranges 2020-01-24

    tags: linux/container, linux/container/docker, linux/container/kubernetes, network, network/tcp, network/udp, performance

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    Docker:

    • https://github.com/moby/moby/issues/9021
    • https://github.com/moby/moby/issues/11185
    • https://github.com/moby/moby/issues/11185#issuecomment-245983651
    • https://github.com/moby/moby/issues/19017
    • https://github.com/docker/for-mac/issues/2670#issuecomment-372365274

    Kubernetes:

    • https://github.com/kubernetes/kubernetes/issues/1802
    • https://github.com/kubernetes/kubernetes/issues/23864
    • https://github.com/kubernetes/kubernetes/issues/23864#issuecomment-387070644

    Disabling userland proxy:

    • https://github.com/moby/moby/issues/5618
    • https://github.com/moby/moby/issues/14856
    • https://github.com/moby/moby/issues/11185#issuecomment-129085898

    Threads:

    • https://stackoverflow.com/questions/28717464/docker-expose-all-ports-or-range-of-ports-from-7000-to-8000
    • https://www.percona.com/blog/2016/02/05/measuring-docker-cpu-network-overhead/
    • https://forums.docker.com/t/exposing-large-range-of-ports-is-not-viable/20127/5
12. testssl.sh: Testing TLS/SSL encryption anywhere on any port 2019-07-31

    tags: command-line, cryptography/certificate, network/transport-layer-security, programming/shell/bash, web

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13. opensnitch: OpenSnitch is a GNU/Linux port of the Little Snitch application firewall. 2018-12-26

    tags: application, linux, network, network/firewall, programming/go, security

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14. Kubernetes Port Forwarding for Local Development - IMTI - Craig Johnston 2018-11-05

    tags: linux/container/docker, linux/container/kubernetes, network

    [ permalink ]

    • https://github.com/txn2/kubefwd
15. Exporters and integrations | Prometheus 2018-10-07

    tags: data, network, network/http, observability, observability/metrics, observability/time-series/prometheus

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    • https://prometheus.io/docs/instrumenting/writing_exporters/
    • https://prometheus.io/docs/practices/instrumentation/
    • https://prometheus.io/docs/practices/naming/
    • https://godoc.org/github.com/prometheus/client_golang/prometheus
    • https://github.com/prometheus/prometheus/wiki/Default-port-allocations
    • https://rsmitty.github.io/Prometheus-Exporters/
    • https://blog.callr.tech/kamailio-exporter-for-prometheus/
16. How to join the default bridge network with docker-compose v2? - Stack Overflow 2018-07-30

    tags: bridge, linux, linux/container/docker, network, port

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    • http://blog.arungupta.me/docker-bridge-overlay-network-compose-variable-substitution/
    • https://docs.docker.com/compose/networking/
17. Load balancing and scaling Docker containers with Træfik 2018-07-18

    tags: linux/container/docker, network, network/http, network/proxy

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    Træfik options:

    • https://docs.traefik.io/configuration/backends/docker/
    • https://docs.traefik.io/configuration/commons/

    Relevant backend labels:

    • traefik.port
    • traefik.docker.network
    • traefik.backend.loadbalancer.method
    • traefik.backend.loadbalancer.stickiness

    Examples:

    • https://www.katacoda.com/courses/traefik/deploy-load-balancer

    Gateway timeout and overlay network setup:

    • https://github.com/containous/traefik/issues/979
    • https://github.com/containous/traefik/issues/1254
    • https://github.com/containous/traefik/issues/3599
18. How To Choose an Effective Firewall Policy to Secure your Servers | DigitalOcean 2018-05-15

    tags: linux, network, network/firewall, policy, security, server

    [ permalink ]

    • http://www.chiark.greenend.org.uk/%7Epeterb/network/drop-vs-reject
    • https://security.stackexchange.com/questions/22686/is-it-good-practice-to-manually-lock-down-ports-on-each-host
    • https://security.stackexchange.com/questions/22711/is-it-a-bad-idea-for-a-firewall-to-block-icmp/22713
    • https://serverfault.com/questions/84963/why-not-block-icmp/84981
19. dxvk: Vulkan-based D3D11 implementation for Linux / Wine 2018-04-10

    tags: emulation, game, graphics/3d, graphics/vulkan, linux, wine

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    • https://boilingsteam.com/dxvk-is-making-great-progress/
    • https://boilingsteam.com/no-need-to-wait-for-a-witcher-3-port-anymore/
20. Docker | Access a service running on the host from a container 2017-09-05

    tags: host, linux, linux/container, linux/container/docker, network, route

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    TL;DR: docker0 bridge + iptables

    • https://stackoverflow.com/questions/31324981/how-to-access-host-port-from-docker-container
    • https://stackoverflow.com/questions/24319662/from-inside-of-a-docker-container-how-do-i-connect-to-the-localhost-of-the-mach
    • https://stackoverflow.com/questions/29598504/how-to-connect-to-service-in-the-host-machine-from-inside-a-docker-container
    • http://blog.michaelhamrah.com/2014/06/accessing-the-docker-host-server-within-a-container/