Dr. Prateek Raj Gautam prateekrajgautam

Understanding Binary Numbers

Before diving into signed and unsigned representations, it's essential to grasp the basics of binary numbers. Binary is a base-2 numeral system, meaning it only uses two digits: 0 and 1. Each digit in a binary number is called a bit. In a 4-bit binary number, there are four positions, each representing a power of 2, starting from the right (which is (2^0)).

Example of a 4-bit binary number:

1 0 1 1

Calculating its decimal equivalent: [

uninstall remove nix from wsl

 sudo mv /etc/zshrc.backup-before-nix /etc/zshrc
 sudo mv /etc/profile.d/nix.sh.backup-before-nix /etc/profile.d/nix.sh
 sudo mv /etc/bashrc.backup-before-nix /etc/barhrc
 sudo mv /etc/bash.bashrc.backup-before-nix /etc/bash.bashrc
 sudo rm -rf /nix

First login to server

Linux users: Use any linux terminal
Windows users: install mobaterm

ssh -X -L 8888:127.0.0.1:8888 [email protected]

You need a bash terminal of linu or windown users need to install git bash

after installation rightclick and select git bash here Now you have bash on windows

ssh in to server with

# define server IP

Following softwares are required to be installed/updated on the server

docker
docker-compose
podman
vagrant
virtualbox
nix

Graphical or CLI

Identify the current target sudo systemctl get-default The result will likely display either the multi-user.target or graphical.target.

Thought I should post my guide on how to do this, as I've struggled with this for quite some time now. I wanted something to bypass the NAT/router as I did not have the option of port-forwarding. I will also be moving quite some in the upcoming year, so dynamic IP was almost a given. And obviously I wanted it to be cheap. This does it all.

This is free, no port-forwarding required and no static IP required. Wildcard domain and SSL certificate supported. It works with Cloudflare tunnels, Cloudflare DNS, Nginx Proxy Manager and obviously TrueNAS SCALE.

I am not a professional, if you see a flaw in this design, please let me know!

Requirements:

Domain name at Cloudflare

cloudflared zero trust tunnel and ssh

SSH conncetion over cloudflared tunnel

create tunnel on cloudflare dashboard zero trust >> access >> tunnels

default.nix

nix-shell for python eel

with import <nixpkgs> { };

mkShell {
    name = "pybids-dev-env";
    
    buildInputs = with python3Packages; [
        python3

	# location ~/.TeXworks/configuration/syntax-patterns.txt
	# TeXworks: Patterns for syntax coloring

	# Each entry consists of three whitespace-separated fields:
	# <style> <spell?> <regex>

	# <style> is a combination of color and style flags
	# Valid syntax:
	# <fgcolor>
	# <fgcolor>/<bgcolor>