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.

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.

Which is better port 587 or 2525 for SMTP?

If port 587 is blocked for some reason, port 2525 is a common alternative. Again, this is not an officially recognized SMTP port, but it is commonly used and supported by most providers.

https://www.youtube.com/watch?v=fPJlWuevrWw

What is the port number for FTP 21?

Well-Known Common Protocols Name Port Number FTP 21 HTTP 80 HTTPS 443 LDAP 389

Which is the port number for Microsoft rdtp?

Well-Known Common Protocols Name Port Number SSH 22 Telnet 23 SMTP 25 Microsoft RDP 3389

What is the port number for SMB in Windows?

SMB is a network file sharing protocol that requires an open port on a computer or server to communicate with other systems. SMB ports are generally port numbers 139 and 445. Port 139 is used by SMB dialects that communicate over NetBIOS. It’s a transport layer protocol designed to use in Windows operating systems over a network.