In addtion the share “public” in the example below must be in the LanManServer list of “NullSessionShares” in order for client machines to be able to read the lmhosts file successfully. This mapping must use the #PRE directive. It is ALWAYS necessary to provide a mapping for the IP address of the server prior to the #INCLUDE. is generally a UNC-based name, allowing a centralized lmhosts file to be maintained on a server. Specifying “#INCLUDE ” will force the RFC NetBIOS (NBT) software to seek the specified and parse it as if it were local. The is always preloaded although it will not be shown when the name cache is viewed. To preload the host name associated with #DOM entry, it is necessary to also add a #PRE to the line. This affects how the browser and logon services behave in TCP/IP environments. By default, entries are not preloaded, but are parsed only after dynamic name resolution fails.įollowing an entry with the “#DOM:” tag will associate the entry with the domain specified by. This file is compatible with Microsoft LAN Manager 2.x TCP/IP lmhosts files and offers the following extensions:įollowing any entry in the file with the characters “#PRE” will cause the entry to be preloaded into the name cache. The “#” character is generally used to denote the start of a comment (see the exceptions below). The address and the computername should be separated by at least one space or tab. The IP address should be placed in the first column followed by the corresponding computername. Each entry should be kept on an individual line.

This file contains the mappings of IP addresses to computernames (NetBIOS) names. This is a sample LMHOSTS file used by the Microsoft TCP/IP for Windows. Transcription of the instruction included in Lmhosts.sam file:

Sam file location windows 7