Port 563

Modified by:

Port 563 is typically used for encrypted NNTP (Network News Transfer Protocol) traffic. It is commonly used as an alternative to Port 119 (the default NNTP port) for secure message transfers between news servers and newsreaders.

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 563
tcp
nntps
nntp protocol over (was
WELL KNOWN PORT
Port 563
udp
nntps
nntp 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
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Port 2018
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Port 4009
Ports those registered with IANA are shown as official ports. The same port number
Port 2629
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Port 3613
Port 3613 is used for the Remote Procedure Call (RPC) protocol used by Apple’s
Port 9901
Ports those registered with IANA are shown as official ports. The same port number
Port 5503
Ports those registered with IANA are shown as official ports. The same port number
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