F-Secure Internet Gatekeeper for Linux/Administrator’s Guide
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2 If (1) above does not apply:
①
If user authentication is enabled:
1)
If the user is not added:
a)
The following is sent to the client:
500 Invalid Account Auth.
②
If the user name contains “@” or “#”:
1)
The server specified by the last “@” or “#” is accessed.
③
If (2) above does not apply:
1)
If the parent server is empty:
a)
The following is sent to the client:
500 USER format is USER username@hostname or
username#hostname
b)
The command terminates.
2)
Connects to the parent server.