Dear sir, v installed Linux Domain Named System in Enterprise Linux release ES 3, now v r not facing any problem in Win98 client joining in DNS, but v are facing problem in Window XP OS Cld u pl suggest me How can i join in DNS sys with Windows XP OS client. i extract some information from manual and done all modification in Register (XP sys) and Local Policies, those are In registry: Hkey_local_machine\system\currentControlSet\....\parameters "RequireSignorseal"= Dword..."0" In Local policies: Local Security Settings Local Policies Security Options Domain number: Digitally encript or sign secure channel dat ( always)= Disable in the same they are mentioning "uidnumber=0", Where can i get this option in XP or Linux PC Pl suggest me through mailto:msvp@amararaja.co.in <mailto:msvp@amararaja.co.in> thanking you, varaprasad M S