The Server Name field in the Forescout User Directory plugin serves as a unique identifier for the specific directory server configuration within the Forescout platform. Once the configuration is initially created and saved, this name cannot be modified. This is a design choice to maintain the integrity of references to this directory server throughout various policies and configurations. To change the Server Name, an administrator must delete the existing server entry and create a new one with the desired name.

A. Administrator: The administrator username is editable to allow for changes in the service account used for directory queries.

C. Password: The password must be editable to accommodate security policies, such as mandatory password rotation for service accounts.

D. Address: The server's IP address or FQDN is editable to reflect changes in the network infrastructure or server location.

E. Port: The connection port is editable to allow for configuration changes, such as migrating from a non-secure to a secure protocol (e.g., LDAP to LDAPS).

1. Forescout User Directory Plugin Configuration Guide v3.1.1, Page 11, "Add an LDAP Server" section. The guide specifies the fields for configuration. In the description for the Server Name field, it states, "The Server Name is a unique name that identifies the server. This name cannot be changed after the server is added." The other fields listed (Address, Port, Administrator, Password) are presented as standard connection parameters that can be modified in the "Edit" dialog.