I have a .Net 2.0 web application running several months fine. I use MSSQL 2005 server and asp.net.
Suddenly, I got an error message:
A transport-level error has occurred when sending the request to the server. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.)
Was it hacked?
I checked the shared memory and name pipe started.
2009-02-18 12:58:08.15 Logon Error: 18452, Severity: 14, State: 1.
2009-02-18 12:58:08.15 Logon Login failed for user ''. The user is not associated with a trusted SQL Server connection. [CLIENT: <local machine>]