Hakky54

Keytool CheatSheet 🔐

Some history

This cheat sheet came into life when I started working on a tutorial of setting up one way tls and two way tls, which can be found here: GitHub - Mutual TLS SSL

Creation and importing

Generate a Java keystore and key pair

keytool -genkeypair -keyalg RSA -keysize 2048 -keystore keystore.jks -alias server -validity 3650

edolstra

Nix Flake MVP

Goals

• To provide Nix repositories with an easy and standard way to reference other Nix repositories.

• To allow such references to be queried and updated automatically.

• To provide a replacement for nix-channel, NIX_PATH and Hydra

edolstra

This document contains some ideas for additions to the Nix language.

Motivation

The Nix package manager, Nixpkgs and NixOS currently have several problems:

• Poor discoverability of package options. Package functions have function arguments like enableFoo, but there is no way for the Nix UI to discover them, let alone to provide programmatic ways to

joepie91

This post is deprecated!

Its contents have been moved to the NixOS wiki here, where they are being kept up to date. Please follow the instructions there instead!

The original post is below for posterity.

 

 

benley

# Heavily cribbed from the equivalent NixOS login script.
# This should work better with multi-user nix setups.

export NIXPKGS_CONFIG="/etc/nix/nixpkgs-config.nix"
export NIX_OTHER_STORES="/run/nix/remote-stores/*/nix"
export NIX_USER_PROFILE_DIR="/nix/var/nix/profiles/per-user/$USER"
export NIX_PROFILES="/nix/var/nix/profiles/default $HOME/.nix-profile"
export NIX_PATH="/nix/var/nix/profiles/per-user/root/channels"
export PATH="$HOME/.nix-profile/bin:$HOME/.nix-profile/sbin:/nix/var/nix/profiles/default/bin:/nix/var/nix/profiles/default/sbin:$PATH"

preshing

#! /bin/bash
set -e
trap 'previous_command=$this_command; this_command=$BASH_COMMAND' DEBUG
trap 'echo FAILED COMMAND: $previous_command' EXIT

#-------------------------------------------------------------------------------------------
# This script will download packages for, configure, build and install a GCC cross-compiler.
# Customize the variables (INSTALL_PATH, TARGET, etc.) to your liking before running.
# If you get an error and need to resume the script from some point in the middle,
# just delete/comment the preceding lines before running it again.

grugq

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.

rsvp

#!/usr/bin/env bash
#              bash 4.1.5(1)     Linux Ubuntu 10.04           Date : 2019-01-02
#
# _______________|  noise : ambient Brown noise generator (cf. white noise).
#
#           Usage:  noise  [minutes=59]  [band-pass freq center=1786]  [wave]
#                          ^minutes can be any positive integer.
#                           Command "noise 1" will display peak-level meter.
#
#    Dependencies:  play (from sox package)