title: Failed to start LSB: Start Jenkins at boot time
body: <p>I've been trying since a while to add and modify things within jenkins. Jenkins was running on 8080 port, I redirected trafic to 80 port through this command:</p>
  
  <pre><code> sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j DNAT --to-destination 54.185.x.x:8080
  </code></pre>
  
  <p>I did some modifications and now I cannot start jenkins:</p>
  
  <pre><code> Jun 08 13:20:17 ip-10-173-x-x jenkins[32108]: Correct java version found
   Jun 08 13:20:17 ip-10-173-x-x jenkins[32108]:  * Starting Jenkins Automation Server jenkins
   Jun 08 13:20:17 ip-10-173-x-x su[32157]: Successful su for jenkins by root
   Jun 08 13:20:17 ip-10-173-x-x su[32157]: + ??? root:jenkins
   Jun 08 13:20:17 ip-10-173-x-x su[32157]: pam_unix(su:session): session opened for user jenkins by (uid=0)
   Jun 08 13:20:17 ip-10-173-x-x su[32157]: pam_unix(su:session): session closed for user jenkins
   Jun 08 13:20:18 ip-10-173-x-x jenkins[32108]:    ...fail!
   Jun 08 13:20:18 ip-10-173-x-x systemd[1]: jenkins.service: Control process exited, code=exited status=7
   Jun 08 13:20:18 ip-10-173-x-x systemd[1]: jenkins.service: Failed with result 'exit-code'.
   Jun 08 13:20:18 ip-10-173-x-x systemd[1]: Failed to start LSB: Start Jenkins at boot time.
  </code></pre>
  
  <p>I changed few lines in the jenkins file and here how it looks like:</p>
  
  <pre><code> JENKINS_ARGS="--javahome=$JAVA_HOME --httpListenAddress=$HTTP_HOST --httpPort=$HTTP_PORT --webroot=~/.jenkins/war"
  </code></pre>