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TLTR;

RED=$'\e[0;31m'
R=${RED}
BLUE=$'\e[0;34m'
B=${BLUE}
GREEN=$'\e[0;32m'
G=${GREEN}
CYAN=$'\e[0;36m'

Tabs and Windows

Function	Shortcut
New Tab	`⌘` + `T`
Close Tab or Window	`⌘` + `W` (same as many mac apps)
Go to Tab	`⌘` + `Number Key` (ie: `⌘2` is 2nd tab)
Go to Split Pane by Direction	`⌘` + `Option` + `Arrow Key`
Cycle iTerm Windows	`⌘` + `backtick` (true of all mac apps and works with desktops/mission control)

Tools

Presentations

UFW cheat sheet

Usage

ufw [--dry-run] enable|disable|reload
ufw [--dry-run] default allow|deny|reject [incoming|outgoing]
ufw [--dry-run] logging on|off|LEVEL
    toggle logging. Logged packets use the LOG_KERN syslog facility. Systems configured for rsyslog
    support may also log to /var/log/ufw.log. Specifying a LEVEL turns logging on for the specified LEVEL.

In host machine ($ )

vagrant init centos/7
vagrant up
vagrant ssh

In guest machine ([vagrant@localhost ~]$ )

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	#!/bin/bash

	export TKN=$(curl -X POST 'http://localhost:8080/auth/realms/master/protocol/openid-connect/token' \
	-H "Content-Type: application/x-www-form-urlencoded" \
	-d "username=admin" \
	-d 'password=admin' \
	-d 'grant_type=password' \
	-d 'client_id=admin-cli' \| jq -r '.access_token')

	curl -X GET 'http://localhost:8080/auth/admin/realms' \

	#!/bin/bash
	# Flushing all rules
	iptables -F FORWARD
	iptables -F INPUT
	iptables -F OUTPUT
	iptables -X
	# Setting default filter policy
	iptables -P INPUT DROP
	iptables -P OUTPUT DROP
	iptables -P FORWARD DROP

	## credit: http://fabian-affolter.ch/blog/the-lineinfile-module-of-ansible/
	---
	- hosts: alpine_install
	user: root

	tasks:
	# - name: create a complete empty file
	# command: /usr/bin/touch /test/test.conf

	- name: create a new file with lineinfile

	---
	- hosts: all
	gather_facts: yes
	tasks:
	- name: Update /etc/hosts
	become: true
	tags:
	- dns
	lineinfile:
	dest: /etc/hosts