ukor

 - create cert
 
 ```
 mkcreate localhost 127.0.0.1 ::1
 ```

- Create fullchain cert

See - https://github.com/FiloSottile/mkcert/issues/214

ukor

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

ukor

[See Stackoverflow Question](https://stackoverflow.com/questions/3855127/find-and-kill-process-locking-port-3000-on-mac)

Add this to your profile 

```sh
findAndKillPort() {  
  port=$(lsof -n -i4TCP:$1 | grep LISTEN | awk '{ print $2 }')  kill -9 $port 
}

```

ukor

# Serve nextJS app from a port through NGINX reverse proxy (HTTP)
# Path: /etc/nginx/sites-available/default
# Default server configuration for HTTP

server {
    server_name www.DOMAINNAME.com DOMAINNAME.com;

    # Serve any static assets with NGINX
    location /_next/static {
        alias /home/ubuntu/PROJECT_FOLDER/.next/static;

ukor

#!/bin/bash

# Functions ==============================================

# return 1 if global command line program installed, else 0
# example
# echo "node: $(program_is_installed node)"
function program_is_installed {
  # set to 1 initially
  local return_=1

ukor

SQUASH COMMIT

git checkout yourBranch

git reset --soft HEAD~$(git rev-list --count HEAD ^MAIN_BRANCH_NAME)

git add -A

git commit -m "one commit on yourBranch"

ukor

from os import listdir, rename
from os.path import isfile, join
import simplejson as json
import ijson


def read_file(file_path):
    print(file_path)
    with open(file_path, "rb") as _file:
        obj = ijson.items(_file, "features.item")

ukor

$(function () {
    "use strict";

    // for better performance - to avoid searching in DOM
    var content = $('#content');
    var input = $('#input');
    var status = $('#status');

    // my color assigned by the server
    var myColor = false;