1, operates primarily over TCP port 445. Additionally, UDP port 138 is used for the datagram service, which handles connectionless communication for services like browsing the network neighborhood.
Legacy NetBIOS Port 139 Guide: Understanding SMB Protocol Port Usage and Configuration
NetBIOS over TCP/IP (NetBT) relies on UDP port 137 for name service, allowing clients to query and register computer names. The Server Message Block (SMB) protocol, specifically versions 1.
By default, Samba binds to all available interfaces, but a locked-down environment often requires explicit declaration of the local area network IP ranges to ensure the daemon is only reachable via the intended Samba share port. A misconfigured firewall blocking port 445 will immediately result in a timeout error, while issues with UDP 137 can manifest as the server not appearing in the network browse list.
Legacy NetBIOS Port 139 Guide
The Role of NetBIOS and Name Resolution While port 445 handles the data transfer, a Samba share port used for discovery and session establishment is equally important for legacy compatibility. Firewall Implementation and Security Hardening Security is paramount when exposing a Samba share port to the network, as these ports are prime targets for reconnaissance and exploitation.
More About Samba share port
Looking at Samba share port from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Samba share port can make the topic easier to follow by connecting earlier points with a few simple takeaways.
