Port 1723 — PPTP

Q: What is the purpose of port 1723?

VPN. The protocol or service generally associated is PPTP.

Q: Transport ProtocolTCPSafety precautionsObsolete and low protocol. Replace IPsec, OpenVPN, WireGuard or SSL VPN.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 1723Under Linux, you can use nc -vz SERVER 1723.

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Port1723

TransportTCP

ServicePPTP

Port 1723TCP

Historic PPTP VPN.

What is the purpose of port 1723?

VPN. The protocol or service generally associated is PPTP.

Transport Protocol

TCP

Safety precautions

Obsolete and low protocol. Replace IPsec, OpenVPN, WireGuard or SSL VPN.

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 1723

Under Linux, you can use nc -vz SERVER 1723.

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