Installing Jenkins on Amazon Linux
Step 1 - Setup the repository
First run update
sudo yum update -y
sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
Step 2 - Install Java
Note : Jenkins is not compatible with Java 1.8 so go with java-11
yum install java-11-openjdk java-11-openjdk-devel -y
Step 3 - Install Jenkins
yum install Jenkins -y
Step 4 - Check status
systemctl status jenkins
Step 5 - Start Jenkins
systemctl start jenkins
Check open ports
netstat -tulpn
Open the DNS address in you browser tab with port no the java is listening on and you should be good to go.