What are ports 445 and 139 used for?

Ports 445 and 139 Explained The Server Message Block Protocol (SMB Protocol) is a client-server communication protocol used for sharing access to files, printers, serial ports, and data on a network. It can also carry transaction protocols for authenticated inter-process communication.

How to enable ports 80 and 443 in sbin?

To enable port 80 and 443, use iptables (or ipchains on old systems) to port-forward 80 to 9191. The following commands provide an example. Consult your distribution’s documentation to see how to persist the iptables rules between system restarts: /sbin/iptables -t nat -I PREROUTING –src 0/0 –dst \\

Is the SMB port the same as port 445?

By Microsoft Windows 2000, Microsoft had changed SMB to operate over port 445. SMB still uses port 445. This proved to be problematic as CIFS was a notoriously chatty protocol that could ruin network performance due to latency and numerous acknowledgments.

What does port 445 do on a computer?

It’s a transport layer protocol designed to use in Windows operating systems over a network. Port 445 is used by newer versions of SMB (after Windows 2000) on top of a TCP stack, allowing SMB to communicate over the Internet. This also means you can use IP addresses in order to use SMB like file sharing.

Is it safe to use port 445 for SMB?

Port 445: Used by newer versions of SMB (after Windows 2000) on top of a TCP stack, allowing SMB to communicate over the Internet. This also means you can use IP addresses in order to use SMB like file sharing. While port 139 and 445 aren’t inherently dangerous, there are known issues with exposing these ports to the Internet.

Where does SQL Server listen on TCP port 1433?

This topic describes how to configure an instance of the SQL Server Database Engine to listen on a specific fixed port by using the SQL Server Configuration Manager. If enabled, the default instance of the SQL Server Database Engine listens on TCP port 1433.