Yegor Gavrilov yegorgavrilov

# View public IP

curl -s checkip.dyndns.org | sed 's#.Address: (.)</b.*#\1#'
wget -qO - icanhazip.com
curl ifconfig.me
curl ident.me
dig +short myip.opendns.com @resolver1.opendns.com
lynx -dump ifconfig.me | grep 'IP Address'
curl ipecho.net/plain
curl bot.whatismyipaddress.com
curl ipinfo.io

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

mkdir -p /usr/local/etc/nginx/sites-{enabled,available}
cd /usr/local/etc/nginx/sites-enabled
ln -s ../sites-available/default.conf
ln -s ../sites-available/default-ssl.conf

File locations:

nginx.conf to /usr/local/etc/nginx/
default.conf and default-ssl.conf to /usr/local/etc/nginx/sites-available
homebrew.mxcl.nginx.plist to /Library/LaunchDaemons/

	# Convert it into pkcs12 format
	openssl pkcs12 -export -out jenkins.p12 -inkey certificate.key -in certificate.crt -name "jenkins-cert"
	# Create keystore if not exist
	https://www.sslshopper.com/article-most-common-java-keytool-keystore-commands.html
	# Import
	keytool -importkeystore -srckeystore jenkins.p12 -srcstoretype pkcs12 -destkeystore keystore.jks

	#!/bin/bash
	### Copy/paste from https://wiki.ubuntu.com/JonathanFerguson/Quagga

	## Use
	## ===
	## $ sudo ./installQuagga.sh

	## Install the Quagga routing daemon
	## =================================
	apt-get -y install quagga

	# basic pfctl control
	# ==
	# Related: http://www.OpenBSD.org
	# Last update: Tue Dec 28, 2004
	# ==
	# Note:
	# this document is only provided as a basic overview
	# for some common pfctl commands and is by no means
	# a replacement for the pfctl and pf manual pages.


	\a toggle between unaligned and aligned mode
	\act show current active sessions
	\c[onnect] [dbname [user] [password]]connect to new database (currently 'RJEYARAJ_DB')
	\C <title> HTML table title
	\copy ... perform SQL COPY with data stream to the client machine
	\d <table> describe table (or view, index, sequence, synonym)
	\d{t\|v\|i\|s\|e\|x} list tables/views/indices/sequences/temp tables/external tables
	\d{m\|y} list materialized views/synonyms
	\dS{t\|v\|i\|s} list system tables/views/indexes/sequences

	root@stg530:~# fdisk -l

	Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
	Units: sectors of 1 * 512 = 512 bytes
	Sector size (logical/physical): 512 bytes / 4096 bytes
	I/O size (minimum/optimal): 4096 bytes / 4096 bytes
	Disklabel type: dos
	Disk identifier: 0x9ccb23b5

	Device Boot Start End Sectors Size Id Type

	## Debian/Ubuntu

	cp ~/ca.crt /usr/local/share/ca-certificates/
	update-ca-certificates

	## CentOS/RHEL

	yum install ca-certificates
	update-ca-trust force-enable
	cp ~/ca.crt /etc/pki/ca-trust/source/anchors/

	###
	export LC_ALL=en_US.UTF-8
	export LANG=en_US.UTF-8
	export LANGUAGE=en_US.UTF-8
	export PS1="\[\033[36m\]\u\[\033[m\]@\[\033[32m\]\h:\[\033[33;1m\]\w\[\033[m\]\$ "
	export CLICOLOR=1
	export LSCOLORS=ExFxBxDxCxegedabagacad