Otherwise, the management of the server is vulnerable. A good rule would be permit ip any WEB-SERVER1 http. permit tcp any WEB-SERVER1 3389 - Allows RDP access from any source to the web server. It is a dangerous practice to allow everyone access to your management ports. Be specific about who can access the server management.
This is a list of TCP and UDP port numbers used by protocols of the Internet protocol suite for operation of network applications.. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) needed only one port for full-duplex, bidirectional traffic. The Stream Control Transmission Protocol (SCTP) and the Datagram Congestion Control Protocol (DCCP) also use port numbers. Ports used for connections - Configuration Manager Ports used by migration. The site server that runs migration uses several ports to connect to applicable sites in the source hierarchy. For more information, see Required configurations for migration. Ports used by Windows Server. The following table lists some of the key ports used by Windows Server. Port and protocol requirements for servers - Skype for Feb 15, 2018
This is a list of TCP and UDP port numbers used by protocols of the Internet protocol suite for operation of network applications.. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) needed only one port for full-duplex, bidirectional traffic. The Stream Control Transmission Protocol (SCTP) and the Datagram Congestion Control Protocol (DCCP) also use port numbers.
Jul 31, 2006 Service overview and network port requirements for Windows May 27, 2020
SQL Server: Frequently Used Ports - TechNet Articles
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