3 Ways to Open Ports - wikiHow
As we can see from the example the TCP 445 is open and listening mode which means this system will accept connections to the 445 port. SMB Over Netbios. Actually Netbios protocol works in TCP 139 and UDP 137 and UDP 138. So if we have a secure network that prevents access to the remote hosts we should add firewall allow TCP and UDP 137-139 rule. Source Port UDP 137(Private) Destination Port UDP 137 Dec 08, 2012 GRC | Port Authority, for Internet Port 138
Apr 29, 2020
Sep 26, 2019 · Port 137-139 is for Windows Printer and File Sharing but also creates a security risk if unblocked. But if you share a printer on your network you will have to allow this one but I recommend just go to the pc the printer is hooked up to and use. Port 135 is for RPC service on a remote machine. TCP Port 137 may use a defined protocol to communicate depending on the application. A protocol is a set of formalized rules that explains how data is communicated over a network. Think of it as the language spoken between computers to help them communicate more efficiently. Apr 28, 2020 · Therefore, you must increase the RPC port range in your firewalls. This change was made to comply with Internet Assigned Numbers Authority (IANA) recommendations. This differs from a mixed-mode domain that consists of Windows Server 2003 domain controllers, Windows 2000 Server-based domain controllers, or legacy clients, where the default
Feb 04, 2003 · Port 137 is the NetBios port. Go to www.incidents.org for a look at the most attacked ports and the countries they are coming from. 9 posted on 02/04/2003 12:50:17 PM PST by opticoax
Apr 28, 2020 · Therefore, you must increase the RPC port range in your firewalls. This change was made to comply with Internet Assigned Numbers Authority (IANA) recommendations. This differs from a mixed-mode domain that consists of Windows Server 2003 domain controllers, Windows 2000 Server-based domain controllers, or legacy clients, where the default Nov 28, 2018 · 137/UDP ---> 445/TCP ---> 49152-65535 ---> Operations Manager database: Yes (Setup) WMI Port 135 (DCOM/RPC) for the initial connection and then a dynamically assigned port above 1024. For further information, see Special considerations for Port 135