# Tomcat Ports

Use this page to specify these port numbers:

Fields | Description
HTTP port no | The port number to which the web server will communicate. The HTTP port no supports the HTTP/1.1 protocol and allows the servlet container to function as a stand-alone web server. The default HTTP port number is 8312. If this port is already in use, a different port number must be used; when activating Web UI, the port number must be mentioned in the URL. For example, if port number 8312 is used, the URL must be defined as follows: `http://hostname:8312/webtop/servlet/login` Note: If available, you can choose port number 80. The advantage is that you do not need to specify the port number in the URL. This default URL is used: `http://hostname/webtop/servlet/login` ##### Note You cannot specify a port number for the secure HTTP protocol (https). For https, the fixed port number 8443 is used.
AJP port no | The port number that communicates with a web connector using the JK protocol (also called the AJP protocol). The AJP port no is used when you want to invisibly integrate Tomcat into an existing or new web server installation. #### Default value 8009 Only change the default value if this port is already used by another application.
Shutdown port no | The port number you can use to shutdown Tomcat. In a new Tomcat installation with default configuration files, the server.xml file is set up with shutdown port 8005, and shutdown="SHUTDOWN". Therefore, when you contact the server locally on port 8005 and send the word "SHUTDOWN" to the server, Tomcat closes all its web applications and shuts down cleanly. #### Default value 8005 Only change the default value if this port is already used by another application.