validation key generator
The following web page provides a useful tool to create the validation key for a web site deployed in a web farm environment http://www.codeproject.com/KB/aspnet/machineKey.aspx The following is a sample section put in a web config file <machineKey validationKey="C6770799B95A1F3E94ABAC69786357FFB65309007F844F0E2BDAC000D7AA3648B2D084D35654132C9A21C9BDF54F4800C841EFE143CBBB46CA38CAA31BCF26AF" decryptionKey="56E020EE87BE153C8E60EB4AFAB0F7D772CE45B71ED9C101C77D7F7B68E38C80" validation="SHA1" decryption="AES" />