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3 If the mode is Active:
① Receives a response from the server.
② If the response code is other than 1xx:
1) The command terminates.
③ Connects to the client with the data session.
④ If the client connection fails:
1) Information of the detection notification message: 530 Cannot connect client
2) The session ends.
4 The file is received.
5 If the command is other than LIST/NLST:
6 If a virus is detected:
① The following is sent to the client: 530 Infected by [Detection name]
② The command ends.
7 The file is transferred.
Other commands
1 The following is sent to the server: [Client response information]
2 Receives a response from the server.
3 The following is sent to the client: [Server response information]
11.12 Connection Error Messages
This section describes error messages that appear when a connection to a server fails.
CONNECT(Host: Port)/connect: [Connection error details]
Connect request to the IP address of a server failed.
Connections are performed using the connect() system call of Linux. The "Connection error
details" contains the error message of connect() system call which in most cases will be one of the
following:
Connection refused
Connection timed out
Network is unreachable : The network on the server could not be reached.
CONNECT(Host: Port)/connect timeout(>$1 sec)
A timeout occurred because the connection could not be established within the specified time ($1).
This error is displayed only when the server connect timeout setting in the expert options is
enabled.
CONNECT(Host: Port)/connect cancelled
Is displayed when the connection was canceled by the client.
CONNECT(Host: Port)/hostname lookup error: [Host name lookup error details]
Failed to lookup the host name.
Host name lookups are performed using the gethostbyname() function of Linux(glibc). The
"Connection error details" contains the error message of the gethostbyname() function which in
most cases is one of the following:
Unknown host
F-Secure Internet Gatekeeper for Linux/Administrator's Guide
: The server denied the connection.
: A timeout occurred while trying to access the server.
: The specified host could not be found.
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