How to create Singleton Design Pattern in Java
A design pattern is a general solution to a common problem. The singleton pattern is used to restricts the instantiation of a class to one single object.
How to add delay in SoapUI Response
When you need to add a delay on your mock service response to simulate a long process or a timeout, you can easily do this by following the steps below.
Create a Web Application with Maven in Eclipse
How to create a Web Application with Maven in Eclipse using maven-archetype-webapp archetype and tested on Apache Tomcat.
How to install Maven on windows
It's very simple to install Apache Maven on Windows. All you need is to download the .zip archive, configure Windows path variable and you are ready to go.
Change ssh default port in Linux
By default, ssh listens for incoming connections on port 22. So if a hacker wants to attack your machine he will most likely scan port 22 first. Just to make an idea how important is this (from my point of view of course), before changing the default ssh port for my server I got every day 1000+ login tries for my root user. An effective (but minimal) method to protect your machine is to run ssh on non-standard port. Any unused port will work but one above 1024 is preferable.
