installing

If you are trying to install yarn dependency manager you might face this error that Ubuntu fails to install yarn and goes on to suggest or install cmdtest. This is because there is a different yarn that is part on cmdtest package and is older than the yarn you are trying to install. Solving this very simple. Instead of installing via apt or apt-get install it via npm sudo npm install -g…

How to Install WSL2 on Windows

WSL or Windows Subsystem for Linux lets developers run Linux environment on windows. You can run Linux tools and apps on windows with the help on WSL. There are two versions of WSL and we will install WSL2 in this tutorial which is the latest version and is recommended by Microsoft. There are multiple ways to install WSL. You can directly download an Linux distribution from windows store and it…

[Solved] Ubuntu refusing connection on port 80

I was getting this issue that I was not able to connect to port 80 on ubuntu server. Same virtual network settings were being used with a different instance but everything was working fine on it. I figured the problem is in the instance settings. I searched through the web but nothing was working. So I decided to go through the server log. I know I should have done this first. I found these…

How to give ubuntu user permission to write to www directory

If you are using sftp client to quick edit few files on your web server you must have face the issue of not having permission to edit files. This can be quickly fixed in 2 steps: Adding the ubuntu user to the www-data groupGiving write permission to everyone in this group Adding the user: Run this command to add the ubuntu user to the www-data group sudo addgroup ubuntu www-data You have to…

[Solved] Error: Unable to find a match: htop CentOS 8

If you are trying to install htop on CentOS 8 by using the command

sudo yum install htop

and getting this error

Error: Unable to find a match: htop

This is because the correct repository is not added to your system.

htop is part of EPEL release so you will need to enable it.

To fix this follow these simple 2 steps:

Step 1: Add EPEL repository

sudo yum install epel-release

Press ‘y’ key and then…

How to Install Openresty on Debian 10

Openresty is a web server built on Nginx with some additional built-in features like Lua programming language. If you want to use Lua with Nginx you will need to compile Nginx from source with Lua support but with openresty, you can get all the features of Nginx and additional few without going through the hassle of compiling it from source code.

For installing Openresty on Debian 10 follow these…

How to Install Nodejs on Ubuntu 20.04

Nodejs is a javascript runtime environment that got popular very quickly. It has got a huge developer community and is still developing very fast.

Nodejs can be installed directly from Ubuntu’s repository or can be installed from the Nodesource repository. As mentioned above it is developing very fast it is advisable to install it from the Nodesource repository as it contains all the latest…

How to install zsh on Ubuntu 20.04

Zsh is a Unix command interpreter or shell that comes with a few more bells and whistles than the bash shell.

Many people prefer it to a bash shell as it is faster to use and way more configurable according to the user.

To know more about zsh you can read their FAQ here.

Installing zsh in Ubuntu is pretty straight forward.

Step 1: Update the apt index

We need to update the apt index so we can get…

How to install Openresty on Ubuntu 20.04

Built on popular Nginx web server Openresty comes with additional plugins to make advanced tasks easier. You can use Openresty as drop in replacement for Nginx.

Most used feature of Openresty is the the built in Lua plugin that helps in writing Lua web app directly inside the web server without any need on installing other software. As Lua is built into the web server it makes it faster.

You can…

Installing Percona MongoDB on Ubuntu 18.04

Percona server for MongoDB is mostly same as MongoDB server that you can install from ubuntu repository but percona mongodb comes with few additional feature like pluggable storage engine API, hot backup and Percona’s memory engine.

We can install it easily by adding the percona’s repository to ubuntu or by downloading the source and compiling it ourself. For this guide I will be using the first…

Installing Discourse on Alibabacloud using Directmail and Cloud CDN

I wrote this tutorial in July 2018 for Alibabacloud Techshare. You can find the edited copy of this tutorial on Alibaba cloud blog. Publishing my original copy here. 

Discourse is a modern style free and open source forum system that runs on Ruby on rails, uses PostgreSQL as database system and redis cache. It is used by many top companies to develop communities around their products and to…

How to install Openresty on Ubuntu 18.04

Openresty is a web app server built on popular nginx web server with lots of advanced features built in. It is almost a drop in replacement for nginx.

Openresty has many built in nginx modules that makes it a powerful web app server. Most popular feature of openrusty is built in Lua programming language support. You can directly use Lua scripts inside the nginx conf files. You can write high…

How to install nodeBB on Ubuntu 16.04

NodeBB is a nodejs based modern style forum system which uses mongoDB as database and can also work with redis database. Installation of nodeBB requires an VPS or dedicated server with root access. It can not be installed on the conventional cPanel based hosting. If you don’t already have a VPS then try digitalocean by clicking on this link and you will get 10$ free credit for playing around.

For…

Where can I Upload my Avatar?

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll from HeroThemes is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is developed by HeroThemes, the number #1 knowledge base theme and plugin…

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll from HeroThemes is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is developed by HeroThemes, the number #1 knowledge base theme and plugin…

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll from HeroThemes is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is developed by HeroThemes, the number #1 knowledge base theme and plugin…

How to Contact Support

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll from HeroThemes is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is developed by HeroThemes, the number #1 knowledge base theme and plugin…