User Datagram Protocol (UDP) (article) | Khan Academy
Is it normal for DNS port 53 to be open/answering WAN? : r/PFSENSE
Sonar NetBIOS Name Service Study | Rapid7 Blog
NT System Tries NetBios 137, even if i disabled it - Windows 10 Forums
What is NetBIOS? Does Windows need its ports 137 and 138 open? - Super User
OpenWRT - Can't block DNS port (53) from WAN-LAN direction - Unix & Linux Stack Exchange
NetBIOS and SMB Penetration Testing on Windows - Hacking Articles
Disable Netbios UDP 137 traffic
Comparing Protocol IDs and Ports - Get Certified Get Ahead
NetBIOS: what it is, how it works and how to use in information security - Ethical hacking and penetration testing
Strange network packet UDP 137 sent from Windows Server
SMB port number: Ports 445, 139, 138, and 137 explained – 4sysops
Filtering Exploitable Ports & Minimizing Customer Risk - SENKI
SMB port number: Ports 445, 139, 138, and 137 explained – 4sysops
Strange network things: the Brave Browser and UDP port 137
Sonar NetBIOS Name Service Study | Rapid7 Blog
Disable Netbios UDP 137 traffic
domain controller firewall ports – Dimitri's Wanderings
Firewall ports to join a domain (RPC)
2.1 Compare and contrast TCP and UDP ports, protocols, and their purposes. Flashcards | Quizlet
NetBIOS and SMB Penetration Testing on Windows - Hacking Articles
Disable NetBIOS in Windows networks – 4sysops
What the heck is going on, udp port 137 - General Discussion - UTM Firewall - Sophos Community
What the heck is going on, udp port 137 - General Discussion - UTM Firewall - Sophos Community
Strange network things: the Brave Browser and UDP port 137
Strange network things: the Brave Browser and UDP port 137
Alternative DNS Techniques - Active Countermeasures
