Internet firewalls can prevent browsing and file sharing

Description: Allows inbound file and printer sharing. To do this, Windows Firewall opens UDP ports 137 and 138, and TCP ports 139 and 445. In order to mount an Azure file share on Windows, port 445 must be accessible. Many organizations block port 445 because of the security risks inherent with SMB 1. SMB 1, also known as CIFS (Common Internet File System), is a legacy file system protocol included with Windows and Windows Server. May 27, 2020 · Port 3702 (UDP) is used to discover the availability of cached content on a client. Port 80 (TCP) is used to serve content to requesting clients. Port 443 (TCP) is the default port that is used by the hosted cache to accept incoming client offers for content. 23. ISA/TMG Server Jul 26, 2019 · There are several makes and models to choose from, but when purchasing a new router, make sure to have at least a USB 2.0 port onboard to make sharing files at home easy. 27 Comments Valery

Jul 13, 2020 · Port 139 is used for Network Basic Input Output System (NetBIOS) name resolution and port 445 is used for Server Message Blocks (SMB). They all serve Windows File and Printer Sharing. In Windows 2000, Microsoft has created a new transport for SMB over TCP and UDP on port 445, which replaces the older implementation that was over ports 137, 138

Sep 02, 2019

Open Ports in the Windows XP ICF for File and Printer Sharing

Opening the File Sharing Ports in Windows Firewall. In order to open the file sharing ports in Windows 2008, you will need to make changes to the Windows Firewall Inbound Rules. To make these changes, you will need to connect to the Windows 2008 Virtual Server using Remote Desktop, and work as the Administrator user.