VirtualTam's bookmarks

1. 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
2. Defining, Measuring, and Managing Technical Debt 2024-03-31

   tags: software-engineering/refactoring, software-engineering/technical-debt

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   • Defining, Measuring, and Managing Technical Debt (PDF)
3. 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
4. Mapping the whole internet with Hilbert curves 2022-01-24

   tags: graphics/2d, internet, network, network/icmp

   [ permalink ]

   • https://github.com/measurement-factory/ipv4-heatmap
5. 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

   [ permalink ]

   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
6. Dnstop: Stay on Top of Your DNS Traffic 2019-12-21

   tags: network, network/dns, observability

   [ permalink ]

   • https://github.com/measurement-factory/dnstop
7. Arduino Sound Level Meter 2019-07-05

   tags: arduino, diy, noise, sensor

   [ permalink ]

   • https://circuitdigest.com/microcontroller-projects/arduino-sound-level-measurement/
   • https://blog.yavilevich.com/2016/08/arduino-sound-level-meter-and-spectrum-analyzer/
   • https://github.com/ayavilevich/ArduinoSoundLevelMeter
   • https://blog.arduino.cc/2018/10/03/measure-noise-levels-in-your-home-with-the-hello-light/
   • https://github.com/JeremySCook/HelloLight
8. 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
9. ScopeIO | Embedded Measurement System for FPGA 2018-11-26

   tags: diy, electronics, oscilloscope

   [ permalink ]

   • https://hackaday.com/2018/03/22/a-diy-nine-channel-digital-scope/
10. Transparent Hugepages: measuring the performance impact - The mole is digging 2018-11-15

    tags: linux, linux/kernel, memory, performance

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    • https://groups.google.com/forum/#!topic/mechanical-sympathy/sljzehnCNZU
    • https://www.kernel.org/doc/Documentation/vm/transhuge.txt
    • https://en.wikipedia.org/wiki/Page_table
11. TechNet NTttcp Utility: Profile and Measure Windows Networking Performance 2017-04-24

    tags: linux, microsoft/windows, network, network/tcp, performance

    [ permalink ]

    • https://github.com/Microsoft/ntttcp-for-linux
    • https://msdn.microsoft.com/en-us/library/windows/hardware/dn567663(v=vs.85).aspx
12. ESNet/Internet2 Network Performance Tools 2017-04-24

    tags: bandwidth, linux, network, performance, programming/c, programming/python, sysadmin

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    bwctl - Bandwidth Test Controller:

    • http://software.internet2.edu/bwctl/
    • https://fasterdata.es.net/performance-testing/network-troubleshooting-tools/bwctl/
    • https://github.com/perfsonar/bwctl

    OWAMP - One-Way Active Measurement Protocol:

    • http://software.internet2.edu/owamp/
    • https://fasterdata.es.net/performance-testing/network-troubleshooting-tools/owamp/

    Network Diagnostic Tools:

    • http://software.internet2.edu/ndt/

    nuttcp:

    • http://www.nuttcp.net/Welcome%20Page.html
    • https://fasterdata.es.net/performance-testing/network-troubleshooting-tools/nuttcp/

    perfSONAR:

    • http://www.perfsonar.net/
    • http://fasterdata.es.net/performance-testing/perfsonar/
    • https://github.com/perfsonar
    • https://en.wikipedia.org/wiki/PerfSONAR

    pScheduler (bwctl replacement):

    • https://fasterdata.es.net/performance-testing/network-troubleshooting-tools/pscheduler/
    • https://github.com/perfsonar/pscheduler
13. python-measurement 2015-01-06

    tags: measurement, observability/metrics, programming/python, system, unit

    [ permalink ]

    https://github.com/coddingtonbear/python-measurement