In some SGOS releases, SSL handshake failures/SSL certificate related errors are logged to the event log. For example:

"SSL client handshake failure"

"SSL server handshake failure"

"Missing SSL server certificate"

Although these SSL-related error messages are genuine based on SSL traffic, if there are too many of them it can prevent you from seeing other important events in the event log. For example, the log can quickly fill with SSL handshake and certificate related errors whenever a client or a server drops the connection in the middle of the SSL handshake. Therefore, starting in SGOS 6.2.8.1 and 6.3.3.x,  these error messages will be logged to the SSL debug log instead of the event log. Please contact Blue Coat Support to get more details about the release dates for these SGOS versions.