WU-FTPD 2.6.1 release notes (5900-1547, January 2011)

timeout maxidle <seconds>
timeout RFC931 <seconds>
Following are some examples for the timeout clause:
◦ timeout idle 200
This displays the message Current IDLE time limit is 200 seconds;
max 7200
◦ timeout maxidle 6200
This displays the message Current IDLE time limit is 200 seconds;
max 6200
◦ timeout RFC931 0
This disables RFC 931-based authentication because 0 is specified.
• Enhanced DNS Extensions
You can use this feature to refuse (or override) an FTP session when a reverse DNS
lookup fails.
The syntax for the enhanced DNS extension feature is as follows:
dns refuse_mismatch <filename> [ override ]
dns refuse_no_reverse <filename> [ override ]
dns resolveroptions <options>
• Reported Address Control
This feature enables you to impose control on the address reported in response to
a PASVcommand and on the TCP port numbers that can be used for a passive data
connection. When a control connection matching the classless inter-domain routing
(cidr) requests a passive data connection (PASV), the externalip address is
reported.
The syntax for controlling the reported address is as follows:
passive address <externalip> <cidr>
passive ports <cidr> <min> <max>
Example 2 The passive Clause
The following is an example of a passive clause:
passive address 10.0.1.15 10.0.0.0/8
In this example, clients connecting from the class A network - 10 are informed that
the passive connection is listening on the IP address 10.0.1.15.
passive ports 10.0.0.0/8 90 100
In this example, if a control connection from the class A network - 10 exits, the port
range within 90 and 100 is randomly selected for the daemon to listen.
30 WU-FTPD 2.6.1 Release Notes