Port 221

Modified by:

Port 221 is typically used for Secure Shell (SSH) Protocol, which is a cryptographic network protocol that allows secure data communication over an unsecured network. SSH uses port 221 for secure communication between the SSH client and server.

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 221
tcp
fln-spx
Berkeley rlogind with auth
WELL KNOWN PORT
Port 221
udp
fln-spx
Berkeley rlogind with auth
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
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Port 91
Ports those registered with IANA are shown as official ports. The same port number
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Port 5051
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Port 2552
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Ports 28400 – 28500
Port 28400- Port 28500 Port 28500- Port 28600 Port 28600- Port 28700 Port 28700-
Port 2870
Ports those registered with IANA are shown as official ports. The same port number
Port 3316
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Port 12172
Ports those registered with IANA are shown as official ports. The same port number
Port 1186
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