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# MAC manipulators
alias random_mac='sudo ifconfig en0 ether `openssl rand -hex 6 | sed "s/\(..\)/\1:/g; s/.$//"`'
alias restore_mac='sudo ifconfig en0 ether YOUR_ORIGINAL_MAC_ADDRESS_GOES_HERE'
@grugq
grugq / gist:03167bed45e774551155
Last active August 27, 2026 05:42
operational pgp - draft

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

@bnagy
bnagy / gpgmutt.md
Last active December 1, 2025 23:19
Mutt, Gmail and GPG

GPG / Mutt / Gmail

About

This is a collection of snippets, not a comprehensive guide. I suggest you start with Operational PGP.

Here is an incomplete list of things that are different from other approaches:

  • I don't use keyservers. Ever.
  • Yes, I use Gmail instead of some bespoke hipster freedom service

Simple Security Guidelines

Using an iDevice? (Best option)

  • Use an iPod or an iPad without a SIM card
  • Use an iPhone
  • Do not jailbreak
  • Always upgrade to new iOS versions
  • Use Brave browser

Need Secure chat?

@illume
illume / flask_matplotlib.py
Last active September 21, 2022 02:14
Shows how to use flask and matplotlib together.
""" Shows how to use flask and matplotlib together.
Shows SVG, and png.
The SVG is easier to style with CSS, and hook JS events to in browser.
python3 -m venv venv
. ./venv/bin/activate
pip install flask matplotlib
python flask_matplotlib.py
"""
@andy-thomason
andy-thomason / Genomics_A_Programmers_Guide.md
Created May 14, 2019 13:32
Genomics a programmers introduction

Genomics - A programmer's guide.

Andy Thomason is a Senior Programmer at Genomics PLC. He has been witing graphics systems, games and compilers since the '70s and specialises in code performance.

https://www.genomicsplc.com

@stettix
stettix / things-i-believe.md
Last active August 11, 2026 09:09
Things I believe

Things I believe

This is a collection of the things I believe about software development. I have worked for years building backend and data processing systems, so read the below within that context.

Agree? Disagree? Feel free to let me know at @JanStette.

Fundamentals

Keep it simple, stupid. You ain't gonna need it.

@digikar99
digikar99 / lisp-resources-digikar-2020.md
Last active January 29, 2025 06:24
If programming is more than just a means of getting things done for you, then Common Lisp is for you!
@ChristopherA
ChristopherA / ssh-keys-best-practices.md
Last active July 10, 2026 06:44
SSH Keys - Best Practices

SSH Keys Best Practices

(VERY rought draft, still a work-in-progress)

SSH Key Seperation

Authentication and signing keys serve different purposes, especially on platforms like GitHub where code integrity and access control are crucial. Here's a comparison based on their functions and best practices:

Authentication Keys:

  1. Purpose: