This log entry is made by the FTP server to indicate a successful verification of the user that logged in with the USER command. If the client changes the user ID during the session with another USER command, another ACCESS entry is made to record the new user ID.

sessionID uniquely identifies the FTP session between a client and a server. Message EZYFS50I is the first message in the log for this session ID.

userid is the name that was entered on the USER command