749
Kerberos Admin
High RiskTCP/UDP — Security & VPN
Port Overview
Port Number
749
Service Name
Kerberos Admin
Transport Protocol
TCP/UDP
Category
Security & VPN
Security Risk
High
Port Range
Well-Known (0-1023)
What is Port 749?
Kerberos 5 administration server (kadmin), used to remotely administer the KDC including adding, modifying, and deleting principals. Exposure outside the administrative network is a significant security risk.
TCP/UDP
Security & VPN
Commonly Used
Security Considerations
Port 749 (Kerberos Admin) is classified as high risk. This port is a common target for automated scanning and brute-force attacks. If you must expose it, restrict access to known IP addresses.
Recommendation: Use firewall rules to whitelist trusted IPs. Enable rate limiting and intrusion detection.