Shakiba Moshiri shakibamoshiri

Wireguard and iptables restrictions for multiple users

If you don't know what Wireguard is, well, you should. It's fast, easy to setup and highly configurable. We will configure Wireguard for multiple users with various restrictions using iptables.

Assumptions

This should fit most setups (not mine though 😉)

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

Product Manager Interview Questions

General Questions:

Tell me about yourself.
Tell me about the most boring job you have ever had.
What changes would you make if you came on board?
What would you say to your boss if he is crazy about an idea, but you think it stinks?
Assuming that you are selected, what will be your strategy for next 60 days?
why are not you earning more money at this stage of your career?

curl commands to query imap servers

Based on https://busylog.net/telnet-imap-commands-note/

curl options

-k -- don't verify certificate (optional)
-n -- use .netrc for username and password (optional)
-X -- request to send to server

	#!/bin/bash
	# A script to limit the outgoing bandwidth of the consensus and execution layers by port
	# We do this because the highest cost for running a node in AWS is the outgoing bandwidth

	# Define your ports and their corresponding rate limits
	declare -A ports=([30303]="500kbit" [9000]="1mbit")

	# Define arbitrary class IDs for each port
	declare -A class_ids=([30303]=1 [9000]=2)

	#!/bin/bash

	## Create the response FIFO
	rm -f response
	mkfifo response

	function handle_GET_home() {
	RESPONSE=$(cat home.html \| \
	sed "s/{{$COOKIE_NAME}}/$COOKIE_VALUE/")
	}

	# install netctl
	sudo pacman -S netctl --noconfirm

	# check network card name
	ip link

	### Config Static IP Address ###
	# Card Name : eth0
	sudo cp /etc/netctl/examples/ethernet-static /etc/netctl/eth0

	#!/bin/bash

	# Usage: ./minio-upload my-bucket my-file.zip

	bucket=$1
	file=$2

	host=minio.example.com
	s3_key=svc_example_user
	s3_secret=svc_example_user_password

	#!/bin/bash

	##
	# Pure BASH interactive CLI/TUI menu (single and multi-select/checkboxes)
	#
	# Author: Markus Geiger <[email protected]>
	# Last revised 2019-09-11
	#
	# ATTENTION! TO BE REFACTORED! FIRST DRAFT!
	#

	$ pkg update
	$ pkg install nmap