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@joshbuchea
joshbuchea / semantic-commit-messages.md
Last active June 17, 2026 09:17
Semantic Commit Messages

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

@gboudreau
gboudreau / AuthyToOtherAuthenticator.md
Last active June 15, 2026 03:01 — forked from Ingramz/AuthyToOtherAuthenticator.md
Export TOTP tokens from Authy

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

@githubfoam
githubfoam / SSH Cheat Sheet
Last active June 10, 2026 03:05
-----------------------------------------------------------------------------------------------------
#disable public key authentication, connect as user root via ssh
sshuser@vg-ubuntu-01:~$ ssh root@vg-ubuntu-02 -o PubkeyAuthentication=no
-----------------------------------------------------------------------------------------------------
#connect with one private key
#access ec2-23-22-230-24.compute-1.amazonaws.com with a private key located in ~/.ssh/alice.pem
$ ssh -i ~/.ssh/alice.pem alice@ec2-23-22-230-24.compute-1.amazonaws.com
-----------------------------------------------------------------------------------------------------
$ cat ~/.ssh/config
@debasishg
debasishg / gist:8172796
Last active June 8, 2026 20:37
A collection of links for streaming algorithms and data structures

General Background and Overview

  1. Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
  2. Models and Issues in Data Stream Systems
  3. Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
  4. Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
  5. [Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&amp;rep=rep1&amp;t
@xgenvn
xgenvn / books.md
Created August 19, 2017 15:15 — forked from abstractart/books.md
Download free O'Reilly books
@willurd
willurd / web-servers.md
Last active June 1, 2026 13:16
Big list of http static server one-liners

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000
@klzgrad
klzgrad / 00-README.txt
Last active May 14, 2026 10:07
DNS compression pointer mutation
$ LD_PRELOAD=$PWD/sendmsg.so dig twitter.com @8.8.8.8
;; Warning: Message parser reports malformed message packet. <-- malformed 因为把压缩指针当作域名一部分了
;; Question section mismatch: got twitter.com/RESERVED0/CLASS256
; <<>> DiG 9.9.5-3-Ubuntu <<>> twitter.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44722
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
@hofmannsven
hofmannsven / README.md
Last active May 13, 2026 02:59
MySQL CLI Cheatsheet
@yougg
yougg / proxy.md
Last active May 12, 2026 18:35
complete ways to set http/socks/ssh proxy environment variables

set http or socks proxy environment variables

# set http proxy
export http_proxy=http://PROXYHOST:PROXYPORT

# set http proxy with user and password
export http_proxy=http://USERNAME:PASSWORD@PROXYHOST:PROXYPORT

# set http proxy with user and password (with special characters)
@KartikTalwar
KartikTalwar / Documentation.md
Last active May 9, 2026 23:00
Rsync over SSH - (40MB/s over 1GB NICs)

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

  • a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
  • H: preserves hard-links
  • A: preserves ACLs