Why am I getting an Apache Proxy 503 error?

Question

My server was doing just fine up until yesterday. It was running Redmine, and it was the happiest little server until my \"friend\" imported a SQL table that my

Answer 1

First check whether the port 8080 is listening or not by the following command

netstat -tlpn

If not than restart the jenkins server by the following command

sudo /etc/init.d/jenkins start

It should work now. Hope it helps.