IPFYI
:636 (TCP)

LDAPS

Low Risk

TCP — Security & VPN

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Port Overview

Port Number 636
Service Name LDAPS
Transport Protocol TCP
Category Security & VPN
Security Risk Low
Port Range Well-Known (0-1023)

What is Port 636?

LDAP over SSL/TLS. Encrypted version of LDAP for secure directory access and authentication. Used by Active Directory for secure LDAP connections.

TCP Security & VPN Commonly Used

Security Considerations

Port 636 (LDAPS) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.

Recommendation: Standard security practices apply. Keep software updated and monitor access.