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@mutin-sa
mutin-sa / Top_Public_Time_Servers.md
Last active July 20, 2025 13:53
List of Top Public Time Servers

Google Public NTP [AS15169]:

time.google.com

time1.google.com

time2.google.com

time3.google.com

@ajdruff
ajdruff / fix-git-line-endings
Last active July 2, 2025 19:35
Forces all line endings to LF in your git repo.
#####################
#
# Use this with or without the .gitattributes snippet with this Gist
# create a fixle.sh file, paste this in and run it.
# Why do you want this ? Because Git will see diffs between files shared between Linux and Windows due to differences in line ending handling ( Windows uses CRLF and Unix LF)
# This Gist normalizes handling by forcing everything to use Unix style.
#####################
# Fix Line Endings - Force All Line Endings to LF and Not Windows Default CR or CRLF
@styblope
styblope / docker-api-port.md
Last active July 14, 2025 07:15
Enable TCP port 2375 for external connection to Docker

Enable TCP port 2375 for external connection to Docker

See this issue.
Docker best practise to Control and configure Docker with systemd.

  1. Create daemon.json file in /etc/docker:

     {"hosts": ["tcp://0.0.0.0:2375", "unix:///var/run/docker.sock"]}
    
@Eng-Fouad
Eng-Fouad / ssl-certs.md
Last active June 23, 2024 05:50
Generate self-signed PKCS#12 SSL certificate and export its keys using Java keytool and openssl.

Steps to generate self-signed PKCS#12 SSL certificate and export its keys:

1- Create PKCS#12 keystore (.p12 or .pfx file)

keytool -genkeypair -keystore myKeystore.p12 -storetype PKCS12 -storepass MY_PASSWORD -alias KEYSTORE_ENTRY -keyalg RSA -keysize 2048 -validity 99999 -dname "CN=My SSL Certificate, OU=My Team, O=My Company, L=My City, ST=My State, C=SA" -ext san=dns:mydomain.com,dns:localhost,ip:127.0.0.1
  • myKeystore.p12 = keystore filename. It can with .pfx extension as well.
  • MY_PASSWORD = password used for the keystore and the private key as well.
  • CN = commonName, it will be shown as certiciate name in certificates list.
  • OU = organizationUnit, department name for example.

EDIT from 2019: Hi folks. I wrote this gist for myself and some friends, and it seems like it's gotten posted somewhere that's generated some (ahem, heated) discussion. The whitespace was correct when it was posted, and since then GitHub changed how it formats <pre> tags. Look at the raw text if you care about this. I'm sure someone could tell me how to fix it, but (thank you @anzdaddy for suggesting a formatting workaround) honestly this is a random throwaway gist from 2015, and someone more knowledgable about this comparison should just write a proper blog post about it. If you comment here I'll hopefully see it and stick a link to it up here. Cheers. @oconnor663

Here's the canonical TOML example from the TOML README, and a YAML version of the same.

title = "TOML Example"
 
@jaz303
jaz303 / ansible-bootstrap
Last active March 28, 2022 00:27
Shell script to prepare a fresh machine for management with Ansible
#!/bin/bash
# usage: boostrap mybox.example.com path/to/id_rsa.pub
# preconditions: fresh install of Debian with ssh installed/running
# effects:
# - hostname is set
# - `ansible` user created with disabled password and added to sudo/ssh groups
# - specified public key added to user's authorized_keys
# - sudoers updated to allow no password operations
@brandonb927
brandonb927 / osx-for-hackers.sh
Last active July 16, 2025 15:20
OSX for Hackers: Yosemite/El Capitan Edition. This script tries not to be *too* opinionated and any major changes to your system require a prompt. You've been warned.
#!/bin/sh
###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###
# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx