Port 3389 — RDP

Q: What is Port 3389 for?…Administration Life. The protocol or service generally associated with this is RDP.Transport ProtocolTCP/UDPSafety precautionsNever expose directly to the Internet. Use VPN/RD Gate, MFA and NLA…Should we open this port in the Burt?

Only if a service is actually needed l, use it. Apply the principle of any privilege: limit the authorized sources, destinations and interfaces, and then log connections when relevant.

Q: How do I check this port?

Test-NetConnection SERVER -Port 3389Under Linux, you can use nc -vz SERVER 3389.

TopicWindows Server →

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Port3389

TransportTCP/UDP

ServiceRDP

Port 3389….TCP/UDP

Microsoft remote office…

What is Port 3389 for?…

Remote administration. The protocol or service generally associated with this is RDP.

Transport Protocol

TCP/UDP

Safety precautions

Never expose directly to the Internet. Use VPN/RD Gate, MFA and NLA…

Should we open this port in the firewall?

Only if a service is actually needed the use it. Apply the principle of any privilege: limit the authorized sources, destinations and interfaces, and then log connections when relevant.

How do I check this port?

Test-NetConnection SERVER -Port 3389

Under Linux, you can use nc -vz SERVER 3389.

Port/service associations are common conventions. An application can be configured on another port.