How To Install Redis CLI on Ubuntu
In this tutorial, we learn how to install Redis CLI on Ubuntu. This tutorial can be used in any version of Ubuntu including but not limited to Ubuntu 20.04/18.04/16.04.
How To Check the PostgreSQL Version
In this tutorial we learn how to check the PostgreSQL version. We will check the version using shell command line and SQL Shell.
IUS Repository On CentOS 7 : How To Enable
Introduction In this tutorial we’ll learn how to enable IUS repository on CentOS 7. IUS stands for Inline with Upstream Stable. IUS will update RPM packages once new versions released by upstream developers. IUS will also not replace stock RPM packages or pacakges that shipped with distribution. The goal of IUS project is to provide … Read more
How-to Get [Query] AWS EC2 Instance Metadata
Introduction In this tutorial we will learn how to get EC2 Instance Metadata from an AWS EC2 instance. We will get the metadata using ec2-metadata and ec2 metadata. This is not typo. The tools name is really similar but one of them using dash on its name. Using EC2 Instance Metadata Query Tool (ec2-metadata) Install … Read more
javax.net.ssl.trustStore Option Behaviour
In this tutorial we will test the behaviour of javax.net.ssl.trustStore option.
The objective is to check whether -Djavax.net.ssl.trustStore option append or replace the default java keystore being used by java.