Port 636

Modified by:

Port 636 is used for the secure version of LDAP (Lightweight Directory Access Protocol) communication, which is called LDAPS. LDAPS is a protocol used for accessing and maintaining directory information services over an SSL (Secure Socket Layer) encrypted TCP/IP (Transmission Control Protocol/Internet Protocol) connection. It is commonly used for secure authentication, authorization, and information retrieval from directories such as Active Directory.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 636
tcp
ldaps
ldap protocol over (was
WELL KNOWN PORT
Port 636
udp
ldaps
ldap protocol over (was
WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
TCP UDP Ports
Other ports
Port 621
Port 621 is commonly used by the macOS Server app for FileMaker Pro sharing.
Port 1518
Ports those registered with IANA are shown as official ports. The same port number
Port 3638
Port 3638 is commonly used for communication between a client and a server in
Port 694
Port 694 is used for a variety of protocols and services, including Cisco Systems’
Port 7201
Ports those registered with IANA are shown as official ports. The same port number
Port 1750
Ports those registered with IANA are shown as official ports. The same port number
Port 2845
Port 2845 is not a standard port used for any specific service or application.
Port 4500
Port 4500 is often used for NAT traversal for IPsec. It is utilized for
Port 412
Ports those registered with IANA are shown as official ports. The same port number
Port 2972
Ports those registered with IANA are shown as official ports. The same port number
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