Can't start Tomcat in Eclipse - Error message indicates required port is busy

[Bill Herbert]

Hi,

When I try to start start a Tomncat server in Eclipse, I get a message: "Port 80 required by Tomcat v6.o server is already in use." I changed the port to 8080 in Tomcat's server.xml file, but then got the message: "Port 8080 required by Tomcat v6.o server is already in use."

I rebooted and, with no all other processes running, got the same result. It seems that there is a problem starting Tomcat regardless of the port used.

Any suggestions?

Thanks, Bill

[Ben Souther]

Try running netstat to see what's bound to that port and what other ports are available.

[Bill Herbert]

Thanks for the feedback, Ben.

Using netstat, I identified the following active connections listening on port 80:
address- local: 0.0.0.0:80, foreign: 0.0.0.0:0
address-local:[::]:80, foreign: [::]:0

and the following listening on port 8080
address- local: 0.0.0.0:8080, foreign: 0.0.0.0:0
address-local:[::]:8080, foreign: [::]:0

All of these connections have the same PID (4), however I could not find this PID in the services window of the task monitor. So I'm not sure what action should be taken regarding these connections.

Meanwhile, I saw that port 8089 was not used, so I experimented by changing the Tomcat port to 8089. I was then able to set up and start a server. I was able to access the server at http://localhost:8089.

Is it OK to proceed using port 8089, as I'm not sure of the implications? If not, I'd appreciate input.

Thanks again,
Bill

[Ben Souther]

I'm not sitting at a windows box right now so I can't see them but look at the help for netstat on your computer.
I think the b switch will show the name of the executable that is bound to each port

netstat /ab or something like that.

[Bill Herbert]

Thanks, Ben

I think I've got it figured out now.

Bill