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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: getting "BindException: permission denied" exception when trying to change port 8080 to 8090
Date Thu, 21 Dec 2017 19:34:28 GMT
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Alceu,

On 12/21/17 1:36 PM, Alceu R. de Freitas Jr. wrote:
> Hello folks, I'm new to this list, and to Tomcat as well. I was
> trying to get Jenkins and Tomcat running on the same VM that I have
> (with CentOS 7), but I'm struggling with a small issue. Since I
> already had Jenkins running on port number 8080, I decided to
> change Tomcat to listen to 8090 by editing /etc/tomcat/server.xml,
> in the following line: <Connector port="8080" protocol="HTTP/1.1" 
> connectionTimeout="20000" redirectPort="8443" />
> 
> And the change: <Connector port="8090" protocol="HTTP/1.1" 
> connectionTimeout="20000" redirectPort="8443" />
> 
> I soon as I started, I got "BindException: permission denied"
> exception on the catalina log file. If I stop Jenkins daemon and
> change it back to 8080, it works as expected. I even tried to put
> port number "17777", but results were the same. I checked out ports
> in use with netstat, firewall configuration... I got nothing. Since
> I was able to change Jenkins to run on 8090, I'm clueless what is
> happening over there. It seems CentOS is happy letting applications
> to bind to 8080 and 8090, so I'm quite curious why things are not
> working with Tomcat...

I've never seem "BindException: permission denied" when the port
number is above 1024. Are you sure it's the connector port (e.g. 8090)
it's complaining about?

When you try your "other applications" test, are you sure you are
running as the same effective user as the Tomcat process?

- -chris
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