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Kerberos Admin
**Kerberos administration** typically uses port 749 to perform administrative tasks such as managing principals, policies, and key databases within a Kerberos authentication infrastructure. This port facilitates secure and centralized identity management for distributed network environments..
Kerberos is a network authentication protocol that uses secret-key cryptography to provide strong authentication for client/server applications. Port 749 is designated specifically for Kerberos administration—enabling management of the Key Distribution Center (KDC), including operations like creating, modifying, or deleting principals and key policies.
Communication on port 749 usually occurs between administrative clients (like kadmin) and the Kerberos administration server. This service can support multiple operations, such as adding users, setting password policies, or exporting keytabs, which are essential in handling authentication across the domain securely. The admin interface exposes these management capabilities via a dedicated port in order to separate sensitive management traffic from general authentication traffic (commonly over ports 88 TCP/UDP)
In operation, port 749 supports both UDP and TCP. The choice of transport can depend on environment and implementation specifics, with TCP preferred for reliability when exchanging bulk or sensitive administrative commands, while UDP may be used for quick queries.