Port 544 — kshell
Quick reference for TCP/UDP port 544, used by kshell. Includes what the service does, security guidance and related ports.
What is port 544?
Kerberos remote shell.
What port does kshell use?
kshell listens on port 544 by default.
Security guidance
High risk — do not expose to the internet
Port 544 (kshell) is high-risk because the service it carries is a frequent target for credential attacks, brute force or unpatched-vulnerability scanning. Keep it bound to localhost or your VPN, never forward it directly on a router, and require strong authentication.
Related ports
Frequently asked
What is port 544 used for?+
Port 544 is the standard TCP/UDP port for kshell. Kerberos remote shell.
What port does kshell use?+
kshell listens on port 544 by default.
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