Hi Pony,
Welcome to the ASPNET newsgroup.
Regarding on the ASP.NET web sites/applications single signon, do you means
using the Forms Authentication, if so, there does exists configuration for
the ASP.NET forms authentication to support cross application
authenitcating(SSO). However, this require the different applications
(maybe on different server) share the same configuration setting(like
machinekey...). Also, those applications should share the same primary
domain name. like aaa.microsft.com and bbb.microsoft.com. Otherwise, since
the authentication cookie can not be shared, cross application forms
authentication won't work. Here are some msdn reference about forms
authentication across multiple appliations:
#Forms Authentication Across Applications
http://msdn.microsoft.com/library/en-us/cpguide/html/cpconformsauthenticatio
nacrossapplications.asp?frame=true
#How To: Configure MachineKey in ASP.NET 2.0
http://msdn.microsoft.com/library/en-us/dnpag2/html/paght000007.asp?frame=tr
ue
Hope this helps.
Regards,
Steven Cheng
Microsoft Online Community Support
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