Installing Jenkins

Jenkins provides us with multiple ways to install it for all types of users. We can install it on at least the following operating systems:

• Ubuntu/Debian
• Windows
• Mac OS X
• OpenBSD
• FreeBSD
• openSUSE
• Gentoo
• CentOS/Fedora/Red Hat

One of the easiest options I recommend is to use a WAR file. A WAR file can be used with or without a container or web application server. Having Java is a must before we try to use a WAR file for Jenkins, which can be done as follows:

1. Download the jenkins.war file from https://jenkins.io/ .
2. Open command prompt in Windows or a terminal in Linux, go to the directory where the jenkins.war file is stored, and execute the following command:

   java - jar jenkins.war
   

3. Once Jenkins is fully up and running, as shown in the following screenshot, explore it in the web browser by visiting http://localhost:8080.:
   

4. By default, Jenkins works on port 8080. Execute the following command from the command-line:

   java -jar jenkins.war --httpPort=9999
   

5. For HTTPS, use the following...