hi guys we are in process to upgrade our win 2003 Domain to Win 2008 R2 Forestfuncational Level. we have Certificate Authority Server running on top of win 2003 SP2 - 32 bit domain Memeber Server. this server will not be change, but domain controller names will be changed( domain name will not be changed ). we have exchange 2007 in place and have used CA to issue certificate and aslo we have thirdparty certificate( OWA ) in place. since domain controler name will be changed, do we have to change any thing in CA Server ( reissue certificate for exchange and do we have to reinsall third party reissued certificate to the excahnge Servers). CA is currently used for Exchange server only. so is there any thing we have to do from CA Server or can we use this exsiting CA Server with new win 2008 R2 domain. Thank you indunil

hi Sander thanks for your reply. yes as you said , we wiil not touching to CA Server. just upgrade win 2003 domain to win 2008 domain( Forest functional Level wil be win 2008 R2). but old win 2003 server will be removed and new win2008 domain with new Server name( but domain is not changed ) will be there. again thanks for reply Indunil