VirtualTam's bookmarks

1. How to use PostgreSQL for (military) geoanalytics tasks 2024-03-31

   tags: country/russia, country/ukraine, database/postgresql, geography/gis, map, nasa/earthdata, war

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   • From Map to Reality: Using PostGIS in Warfare (PDF)
   • NASA Earthdata - Full and open access to NASA’s collection of Earth science data for understanding and protecting our home planet
   • Visible Infrared Imaging Radiometer Suite (VIIRS) Active Fire detection
   • PostgreSQL - GiST - Generalized Search Tree
   • PostgreSQL - SP-GiST - Space-partitioned GiST
   • H3 - Hexagonal hierarchical geospatial indexing system
   • zachasme/h3-pg - PostgreSQL bindings for H3
2. Rust std fs slower than Python!? No, it's hardware! 2023-11-30

   tags: amd, hardware/cpu, linux/kernel/ebpf, memory, observability/tracing, programming/python, programming/rust

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   • Xuanwo/when-i-find-rust-is-slow
   • Std::fs::read slow?
3. A Beg­inner’s Guide to Finding User Needs 2023-06-24

   tags: research, user, user-experience, user-interface

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   Qualitative research on user motivations, activities and problems.

4. Postfix, iPhone, Apple Mail and the reject_unknown_helo_hostname parameter 2023-01-28

   tags: email/postfix, mobile/ios, network/dns

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   I'd get a better behaved mail client. — Hu on Gentoo Forums

   • http://www.postfix.org/postconf.5.html#reject_invalid_helo_hostname
   • https://serverfault.com/questions/575539/postfix-helo-command-rejected-host-not-found
   • https://serverfault.com/questions/527541/postfix-whitelist-host-for-specific-sender
   • https://serverfault.com/questions/922935/why-does-postfix-say-helo-command-rejected-host-not-found-when-dig-finds-the
   • https://discussions.apple.com/thread/3120175
   • https://forums.gentoo.org/viewtopic-p-8604630.html?sid=a666f84af3d663d43b4c72a5b82115c4
5. Finding the “Second Bug” in glibc’s Condition Variable 2022-09-20

   tags: concurrency/threading, formal-specification/tla+, programming/c, programming/ocaml

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6. Python - Finding a key recursively in a dictionary 2022-06-29

   tags: algorithm, programming/python, recursive

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   • https://garethrees.org/2016/09/28/pattern/ - The Stack of Iterators Pattern
   • https://neopythonic.blogspot.com/2009/01/detecting-cycles-in-directed-graph.html
   • https://stackoverflow.com/questions/45335445/recursively-replace-dictionary-values-with-matching-key
7. How to find the N largest files in a git repository? - Stack Overflow 2020-08-04

   tags: blob, history, programming/shell, source-code-management, source-code-management/git, source-code-management/monorepo

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   • https://stackoverflow.com/questions/10622179/how-to-find-identify-large-commits-in-git-history
   • https://stackoverflow.com/questions/223678/which-commit-has-this-blob

   1git rev-list --objects --all \
   2| git cat-file --batch-check='%(objecttype) %(objectname) %(objectsize) %(rest)' \
   3| sed -n 's/^blob //p' \
   4| sort --numeric-sort --key=2 --reverse \
   5| head -n 150 \
   6| cut -c 1-12,41- \
   7| $(command -v gnumfmt || echo numfmt) --field=2 --to=iec-i --suffix=B --padding=7 --round=nearest
   

8. keyboard - Where can I find the full list of Compose combinations for my locale? - Ask Ubuntu 2020-06-29

   tags: character, compose-key, keyboard, linux, text/unicode

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   • https://askubuntu.com/questions/787113/compose-dead-greek-with-compose-key
9. callcatcher: find unused code by collecting methods defined but not called or referenced 2020-01-02

   tags: compiler, compiler/gcc, dynamic-analysis, programming/c, programming/c++, static-analysis/lint

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   • http://www.skynet.ie/~caolan/Packages/callcatcher.html
   • https://stackoverflow.com/questions/9091397/is-there-a-way-to-get-warned-about-unused-functions
10. Tonto's Expanding Head Band 2019-07-04

    tags: analog, audio, electronics, instrument/synthesizer, music

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    • https://www.rollingstone.com/music/music-features/history-of-giant-stevie-wonder-synth-tonto-752161/
    • https://www.synthtopia.com/content/tag/tonto/
    • https://www.synthtopia.com/content/2014/01/09/the-mothership-has-landed-tonto-synthesizer-finds-new-home-at-national-music-centre/
    • https://en.wikipedia.org/wiki/Tonto%27s_Expanding_Head_Band#The_TONTO_synthesizer
11. ClusterFuzz - a scalable fuzzing infrastructure which finds security and stability issues in software 2019-02-08

    tags: analysis, data, google, input, programming/python, security

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    • https://github.com/google/clusterfuzz
    • https://github.com/google/oss-fuzz
    • https://llvm.org/docs/LibFuzzer.html
    • http://lcamtuf.coredump.cx/afl/
    • https://security.googleblog.com/2018/11/a-new-chapter-for-oss-fuzz.html
    • https://opensource.googleblog.com/2019/02/open-sourcing-clusterfuzz.html
12. [openvpn] ERROR: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network · Issue #418 · docker/for-linux · GitHub 2019-01-28

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

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    • https://www.reddit.com/r/docker/comments/5nf966/cant_start_daemon/
13. How to find Unused Amazon EC2 Security groups - Stack Overflow 2019-01-22

    tags: cloud, cloud/aws, infrastructure, network, programming/python, security

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    • https://gist.github.com/miketheman/2630437
    • https://gist.github.com/TomRyan-321/0cf6e48937cbe9513afc50117d6ffd6f
14. Vaughan Hilts - Using Huginn for profit and fun; finding price errors on the Internet 2019-01-05

    tags: automation, feed, huginn, network/http, programming/ruby, web/scraping, web/syndication

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15. Find and Replace in Vim: Commands and Plugins to Search Everything You Want · Web technologies 2018-12-05

    tags: editor, editor/vim, find, text

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    • http://vimdoc.sourceforge.net/htmldoc/quickfix.html
    • https://github.com/wincent/ferret
    • https://github.com/junegunn/fzf
    • https://github.com/junegunn/fzf.vim
    • https://github.com/tpope/vim-abolish
16. Find packages installed from a certain repository with aptitude - Super User 2018-11-12

    tags: linux/debian, linux/ubuntu, package, repository

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    • https://askubuntu.com/questions/342434/find-what-packages-are-installed-from-a-repository
    • https://serverfault.com/questions/252333/list-all-packages-from-a-repository-in-ubuntu-debian
17. fd: A simple, fast and user-friendly alternative to 'find' 2018-05-07

    tags: command-line, find, linux

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18. Dracut emergency shell 2018-04-20

    tags: filesystem, filesystem/lvm, linux, linux/kernel

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    • https://superuser.com/questions/1244536/dracut-emerg-shell-mount-lvm2-volume
    • https://unix.stackexchange.com/questions/207593/how-to-make-lvms-at-available-boot-kernel-panic-dracut-cannot-find-logical-vo
    • https://serverfault.com/questions/893721/centos7-dracut-lvm-command-not-found
    • https://www.novell.com/coolsolutions/appnote/19386.html
    • https://fedoraproject.org/wiki/How_to_debug_Dracut_problems
    • https://kb.vmware.com/s/article/1002402
    • https://forums.fedoraforum.org/showthread.php?294909-Need-dracut-emergency-shell-help-regenerate
19. Can't run on Desktop: cannot find class com.badlogic.gdx.ApplicationListener · Issue #4855 · libgdx/libgdx · GitHub 2018-03-04

    tags: libgdx, mobile/android, programming/java, programming/java/gradle

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    • http://www.badlogicgames.com/forum/viewtopic.php?f=11&t=27116
    • https://stackoverflow.com/questions/46947873/libgdx-doesnt-working-after-updating-gradle-android-studio-3-0
20. Know How to Create a Local Replica in Lotus Notes to Work Offline 2018-02-22

    tags: backup, email, ibm, server

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    • https://www.ibm.com/developerworks/lotus/library/local-mail-replicas/
    • https://superuser.com/questions/766756/how-do-i-find-where-a-local-lotus-notes-database-is