Problem in connecting and authenticating linux clients with windows server

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http://www.linuxquestions.org – Hi, I have windows 2003 server loaded in my windows server as an operating system.I have also wfilter working as a domain controllerfor.Wfilter is monitoring the clients logged into the domain.The problem is Wfilter is not been able to recognize the linux clients.It is also not being able to do NET BIOS scan of the linux clients as a result these linux clients are not been monitored and therefore no security policies can be applied on them.My question is "is there any way to bring these linux clients into the Windows domai so that the domain controller can monitor them?". eagerly wa (HowTos)