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• API to get postal code details - https://api.postalpincode.in/pincode/632011
• Using Google Maps API

https://maps.googleapis.com/maps/api/geocode/json?key={API_KEY}&components=postal_code:110011

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• OpenCV module - https://www.npmjs.com/package/opencv-facecrop

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Gitlab backup and restore notes

Backup (on old server)

sudo gitlab-backup create
#backup is available in
cd /var/opt/gitlab/backups
cp 1643*.tar /tmp
cd /tmp
gzip 1643*.tar

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Linux (Ubuntu / Debian) package installation and management

List packages

apt list --installed
dpkg -l

Remove package

sudo apt-get remove 

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Setting up LetsEncrypt SSL certificate for Moodle on Ubuntu

1. Install certbot

sudo apt install certbot python3-certbot-apache

2. Enable firewall to allow Apache https and ssh

sudo ufw status
sudo ufw enable

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1. Create appuser group
2. Create appuser
3. Login as appuser

su - appuser

4. Install nvm

5. Install Meteor

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1. Install Alpine Linux Virtual ISO

wget https://dl-cdn.alpinelinux.org/alpine/v3.16/releases/x86_64/alpine-virt-3.16.2-x86_64.iso
# Get the version you need at https://alpinelinux.org/downloads/

2. Make sure the environment variable for the proxy server is set correctly

export HTTP_PROXY=http://user:pass@http://proxy_server:proxy_port

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MariaDB (MySQL) cheatsheet

Create database and add user with access

# Create db
CREATE DATABASE 'testDB';

# Create user on localhost
CREATE USER 'user1'@localhost IDENTIFIED BY 'password1';
# for all hosts
CREATE USER 'user1'@'%' IDENTIFIED BY 'password1';

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Setting up NodeJS app with NGINX and MongoDB on Ubuntu 20.04

1. Install nvm

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash
nvm install --lts

2. Install nginx

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server {
    listen 80;
    
    root /var/www/html/drupal;

    index index.php index.html index.htm;

    server_name _;

    location / {