Addressing network requirements

Review the following table during installation of Zowe server-side components to determine which TCP ports are required. Values presented in the table are default values. You can change the values by updating variable values in the zowe.yaml file.

Required roles: network administrator, system programmer

For more information about variable names in the following table, see the Zowe YAML configuration file reference in the References section.

Port number	zowe.yaml variable name	Purpose
2157	zowe.environments.JGROUPS_KEYEXCHANGE_PORT	The port at which the key server in Infinispan is listening. If the port is not available, the next port is probed, up to port+5. Used by the key server (server) to create an SSLServerSocket and by clients to connect to the key server.
7098	zowe.components.caching-service.storage.infinispan.jgroups.port	Bind port for the socket that is used to form an Infinispan cluster.
7552	zowe.components.api-catalog.port	Used to view API swagger / openAPI specifications for registered API services in the API Catalog.
7553	zowe.components.discovery.port	Discovery server port which dynamic API services can issue APIs to register or unregister themselves.
7554	zowe.components.gateway.port	The northbound edge of the API Gateway used to accept client requests before routing them to registered API services. This port must be exposed outside the z/OS network so clients (web browsers, VS Code, processes running the Zowe CLI) can reach the gateway.
7555	zowe.components.caching-service.port	Port of the caching service that is used to share state between different Zowe instances in a high availability topology.
7556	zowe.components.app-server.port	The Zowe Desktop (also known as ZLUX) port used to log in through web browsers.
7557	zowe.components.zss.port	Z Secure Services (ZSS) provides REST API services to ZLUX, used by the File Editor application and other ZLUX applications in the Zowe Desktop.
7558	zowe.components.jobs-api.port	Port of the service that provides REST APIs to z/OS jobs used by the JES Explorer.
7559	zowe.components.files-api.port	Port of the service that provides REST APIs to MVS and USS file systems.
N/A	zowe.components.explorer-jes	Port of the JES Explorer GUI for viewing and working with jobs in the Zowe Desktop.
N/A	zowe.components.explorer-mvs	Port of the MVS Explorer GUI for working with data sets in the Zowe Desktop.
N/A	zowe.components.explorer-uss	Port of the USS Explorer GUI for working with USS in the Zowe Desktop.