By default, Tomcat is configured to run on port
8080. That’s why all the deployed web applications are accessible though URLs like
If you want to run an application on URL like
http://localhost/yourapp, then you will need to change the default port 8080 to 80, which is default port for HTTP connectors.
1. Change port to 80 in tomcat’s server.xml
To make this port change, open
server.xml and find below entry :
<Connector port="8080" //Change this protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
and change it to below entry:
<Connector port="80" //Changed !! protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
You are all set to access your applications using root path “
2. Changing port in Linux
In linux, port upto 1024 are reserved ports. So, to use any port below this (e.g. port 80 in our case), we must make additional configuration changes.
2.1. With root access
This one is easy. Simply start the Tomcat process as root.
2.2. Without root access
If we do not have root access, we must install and configure authbind package. It helps in binding sockets to privileged ports without root.
sudo apt-get install authbind
- Configure tomcat in authbind if permission denied error comes (EPERM – Operation not permitted, or Not owner), use these command to enable access.
sudo touch /etc/authbind/byport/80 sudo chmod 500 /etc/authbind/byport/80 sudo chown tomcat8 /etc/authbind/byport/80
- At last, restart the tomcat server if it is running already.
Happy Learning !!
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