# Modifying Application Ports

> This article outlines steps for changing the default port settings for the application.

URL: https://www.hannonhill.com/cascadecms/latest/articles/cascade-administration/installation-and-upgrades/system-configuration/modify-ports.html
category: Cascade Administration
article-type: how-to
content-kind: article
release-availability: all
tags: installation
updated: 2026-10-06

## Changing the default port

1. Shut down Cascade CMS.
1. Edit the */tomcat/conf/server.xml* file.
1. Locate the `HTTP/1.1` Connector:   `<Connector port="8080" maxHttpHeaderSize="8192" ../>`
1. Change the port attribute (the default is `8080`) and save the file.
1. Restart Cascade CMS.
1. Repeat the same steps for any other Connector used within the configuration (e.g. SSL and.or AJP).

## Multiple instances of Cascade CMS

While running multiple instances on one machine is discouraged, it is possible to do so if the HTTP and shutdown ports are modified to prevent the instances from interfering with one another.

> **Warning**
>
> Running multiple environments on a production machine is not supported.

In addition to modifying the HTTP port (as mentioned above), administrators must also modify the shutdown port:

1. Edit the */tomcat/conf/server.xml* file.
1. Change the port attribute (the default is `8005`): `<Server port="8005" shutdown="SHUTDOWN">`
1. Save the file.
1. Restart Cascade CMS.