การติดตั้ง Jenkins on Ubuntu 18.04
Step 1 Install Java
$ sudo apt-get update
$ sudo apt-get install openjdk-11-jdk -y
Step 2 Install Jenkins
$ wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -
$ sudo sh -c 'echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'
$ sudo apt update
$ sudo apt install jenkins -y
Step 3 Start Service
$ systemctl start jenkins
$ sudo ufw allow 8080
Step 4 Check port
$ sudo ufw status
Step 5 Change Default Port
$ sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080
Success