How to fix GPG error “NO_PUBKEY” when running apt-get update

Yesterday when i try to add PPA repository for webupd8team, i get an error saying GPG error: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C2518248EEA14886. This happens on lubuntu 17.10 artful aardvark, so how do i fix this issue?

How to install Robomongo 3T on Lubuntu 16.04

Robo 3T or Robomongo 3T is another graphical user interface (GUI) program for managing MongoDB noSQL database. Robomongo is a free software and currently not available as part lubuntu/ubuntu repository, but don't worry i will walk you through on how to install robomongo on lubuntu.

phpMyAdmin deprecation notice error Lubuntu 16.04

Yesterday when i open phpmyadmin on my laptop which runs lubuntu 16.04 and php 7.0, i get a bunch of error message like this:

How to upgrade NodeJs on Lubuntu 16.04

If you have lubuntu 16.04 and you already install nodejs on your machine, you will see that the nodejs version is not the latest one. We need to find a way to upgrade nodejs on our lubuntu.

How to install npm on Lubuntu 16.04

Npm is package dependency manager for nodejs application and javascript in general, similar to composer for php and gem for ruby. If you are a javascript developer you are going to need npm installed on your system. In this article i will show you how to install npm on lubuntu 16.04.