无法在Ubuntu Linux上启动Jenkins

Question

I am trying to start Jenkins on Ubuntu Linux When I write in my address line http://localhost:8080 chrome writes that "website cant be reach"

I followed this instruction in documentation https://www.digitalocean.com/community/tutorials/how-to-install-jenkins-on-ubuntu-16-04

output of command sudo systemctl status jenkins is :

jenkins.service - LSB: Start Jenkins at boot time
Loaded: loaded (/etc/init.d/jenkins; bad; vendor preset: enabled)
Active:active (exited) since Thu 2017-04-20 16:51:13 UTC; 2min 7s ago
Docs: man:systemd-sysv-generator(8)

than I ran this command sudo ufw allow 8080 , the output is :

Status: active

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere
8080                       ALLOW       Anywhere
OpenSSH (v6)               ALLOW       Anywhere (v6)
8080 (v6)                  ALLOW       Anywhere (v6)

it seems that everything is okay. what the problem can be?

Answer 1

I had this same issue as well, and it was because the Java JRE was not installed. I had to install that, and then I was able to follow the Jenkins setup guide.

https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-get-on-ubuntu-16-04