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@nickyp
nickyp / self_signed_cert.rb
Last active November 6, 2024 10:59
create a self-signed certificate using ruby-openssl
# Copyright © 2020 Nicky Peeters
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
@moredip
moredip / run-command-on-git-revisions
Created May 8, 2011 06:58
A quieter version of Gary Bernhardt's script, with timestamps
#!/bin/bash
#
# This script runs a given command over a range of Git revisions. Note that it
# will check past revisions out! Exercise caution if there are important
# untracked files in your working tree.
#
# This came from Gary Bernhardt's dotfiles:
# https://github.com/garybernhardt/dotfiles
#
# Example usage:
@ricardochimal
ricardochimal / cert.rb
Created May 10, 2011 18:49
generating ssl certs with subjectAltName domains
domain = "*.example.com"
subjectAltDomains = [ domain, "example.com" ]
require 'openssl'
puts "Generating public and private keys..."
key = OpenSSL::PKey::RSA.new(2048)
subject = "/C=US/ST=California/L=Los Angeles/O=Example Inc./CN=#{domain}"
cert = OpenSSL::X509::Certificate.new
@jboner
jboner / latency.txt
Last active October 21, 2025 11:20
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@dmytro
dmytro / ssh-multi.sh
Created October 31, 2012 03:46
Start multiple synchronized SSH connections with Tmux
#!/bin/bash
# ssh-multi
# D.Kovalov
# Based on http://linuxpixies.blogspot.jp/2011/06/tmux-copy-mode-and-how-to-control.html
# a script to ssh multiple servers over multiple tmux panes
starttmux() {
if [ -z "$HOSTS" ]; then
@rafi
rafi / i3status.conf
Last active February 1, 2023 12:33
Rafi's i3status configuration file
# github.com/rafi i3status config
# i3status configuration file
# see "man i3status" for documentation.
# It is important that this file is edited as UTF-8.
# The following line should contain a sharp s:
# ß
# If the above line is not correctly displayed, fix your editor first!
@XVilka
XVilka / TrueColour.md
Last active October 9, 2025 17:55
True Colour (16 million colours) support in various terminal applications and terminals

THIS GIST WAS MOVED TO TERMSTANDARD/COLORS REPOSITORY.

PLEASE ASK YOUR QUESTIONS OR ADD ANY SUGGESTIONS AS A REPOSITORY ISSUES OR PULL REQUESTS INSTEAD!

@hvasconcelos
hvasconcelos / gen_keys.sh
Last active July 18, 2024 18:47
Create an Sinatra SSL Server
# Generate a self-signed Certificate and a Private Key
openssl req -x509 -nodes -days 365 -newkey rsa:1024 -keyout pkey.pem -out cert.crt
@zerosign
zerosign / config
Created April 3, 2014 03:49
i3 config file
# This file has been auto-generated by i3-config-wizard(1).
# It will not be overwritten, so edit it as you like.
#
# Should you change your keyboard layout somewhen, delete
# this file and re-run i3-config-wizard(1).
#
# i3 config file (v4)
#
# Please see http://i3wm.org/docs/userguide.html for a complete reference!
@tsiege
tsiege / The Technical Interview Cheat Sheet.md
Last active October 13, 2025 20:38
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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