Unable to Share Data between Amazon EC2 Instances for Windows

How to configure your Windows Firewall for VIPRE Business Dec 15, 2017 [SOLVED] Windows Explorer port to open - Windows Server Jan 23, 2012

May 15, 2019 · One central task for the SMB (Server Message Block) protocol is file sharing. In Windows NT it ran on top of NBT (NetBIOS over TCP/IP), which used the famous ports UDP 137 and 138, and TCP 139. With Windows 2000, Microsoft added the option to run SMB directly over TCP/IP, without the extra NBT layer. That's what TCP port 445 is used for.

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. Mar 20, 2019 · Method #3: Use Sysinternals TCPView to See Which Ports Are in Use. Sysinternals TCPView is a Microsoft tool that makes it easy to view all the TCP connections and ports in use in Windows 10. The tool is very similar to CurrPorts. 1. Download TCPView from the Sysinternals website, extract the exe file to your desktop and double-click on it. 2. Microsoft file sharing SMB: UDP ports from 135 through 139 and TCP ports from 135 through 139. Direct-hosted SMB traffic on NetBIOS: port 445 (TCP and UPD). When does Windows 2000/XP/2003 uses port 445, and when it uses 139?

This will open the Windows Firewall with Advanced Security screen. In the left navigation pane, click on Inbound Rules. In the Inbound Rules screen, scroll down to find the File and Printer Sharing ports. NOTE - there are a total of 9 file and printer sharing ports, but you are only opening the ones listed here: File and Printer Sharing (NB

However I'll try to make suggestions although I don't use file sharing myself. Double-click the taskbar icon to open SecurityCenter. Dismiss any slogan that might be displayed. Click Web and Email Protection below. Click Firewall. Click Ports and System Services and check the item Windows File Sharing (NETBIOS) Ports 137-139. See if that helps. The steps below show which ports you open to allow the eMule peer-to-peer file sharing application to work. If you use a different application, adapt the steps to suit. Identify the ports used by eMule. Open eMule and open Preferences. On the left side of the Preferences window, click Connection. The TCP and UDP ports used by eMule are displayed. CIFS is the primary protocol used by Windows systems for file sharing. CIFS uses UDP ports 137 and 138, and TCP ports 139 and 445. Your storage system sends and receives data on these ports while providing CIFS service. When left open, these ports are susceptible to a variety of traditional attacks – like brute-force password guessing – but also to more modern ransomware attacks (such as WannaCry). In these cases, we recommend that the client either (1) disable Windows File Sharing on this server or (2) set up firewall rules to make the ports inaccessible