What is NetBIOS and how does it work? NetBIOS (Network Basic Input/Output System) is a network service that enables applications on different computers to communicate with each other across a local ...

Apparently, when you disable NetBIOS over TCP, file & printer sharing *should* use direct host SMB to function according to MS. However, this is not the case with my setup. Once NetBIOS/TCP is ...

NetBIOS alone should not give you many headaches. Unfortunately, when NetBIOS problems occur they can be difficult to detect. Understanding how NetBIOS works is the key. One of the important steps in ...

Support for the NetBIOS protocol in Windows when running in a TCP/IP network. NetBIOS over TCP/IP (NBT) supports legacy applications that use the NetBIOS protocol as well as the NetBIOS name server ...

NetBIOS, short for Network Basic Input/Output System, is a Windows API used when DNS is not available. It runs over TCP/IP as a fallback method and is not enabled by default. However, Microsoft ...

Sometimes a single server has to serve multiple NetBIOS names. Rick Vanover shares this trick to having one server work double duty in the NetBIOS department. A server’s NetBIOS name is what we still ...

New DRDoS attacks observed in the wild (Tim Dorr (image), Gregor Črešnar (icon)) Three new types of reflection DDoS attacks were observed by Akamai SIRT (Security Intelligence Response Team) being ...

A blog for IT professionals who work with Windows on large networks. Last Friday, I observed in a post here that machine names appeared case sensitive in RDP. Indeed they are — kind of — and in other ...

We have an AD forest with many users across several subdomains. How would one obtain the user's netbios domain name? An example of why this is a problem may help: A user's DN may be ...

Akamai has observed three new reflection DDoS attacks in recent months: NetBIOS name server reflection, RPC portmap reflection, and Sentinel reflection. In a reflection DDoS attack, also called a ...