Introduction. This article provides an overview of ports that are used by Citrix components and must be considered as part of Virtual Computing architecture, especially if communication traffic traverses network components such as firewalls or proxy servers where ports must be opened to ensure communication flow..

Jul 26, 2020 Port 139 (tcp/udp) :: SpeedGuide Port(s) Protocol Service Details Source; 139 : tcp,udp: netbios-ss: NetBIOS is a protocol used for File and Print Sharing under all current versions of Windows. While this in itself is not a problem, the way that the protocol is implemented can be. There are a number of vulnerabilities associated with leaving this port open. NetBios services: Restricting Active Directory RPC traffic to a specific port

Site server --> Distribution point: RPC endpoint mapper using UDP and TCP port 135. Site server --> Distribution point: RPC dynamic TCP ports. Use IPsec to help secure the traffic between the site server and site systems. If you must restrict the dynamic ports that are used with RPC, you can use the Microsoft RPC configuration tool (rpccfg.exe).

Port 139 NetBIOS. NetBIOS Session (TCP), Windows File and Printer Sharing . This is one of the most dangerous port on the Internet. All "File and Printer Sharing" on a Windows machine runs over this port. About 10% of all users on the Internet leave their hard disks exposed on this port. Port 445 SMB RPC service - port 135 - epmap | Wilders Security Forums Jul 20, 2007

Mar 05, 2019

By default, the HTTP port that's used for client-to-site system communication is port 80, and the default HTTPS port is 443. Ports for client-to-site system communication over HTTP or HTTPS can be changed during setup or in the site properties for your Configuration Manager site.