WU-FTPD 2.6.1 Release Notes (September 2008)

Displays the message Current IDLE time limit is 200 seconds; max
7200
timeout maxidle 6200
Displays the message Current IDLE time limit is 200 seconds; max
6200
timeout RFC931 0
Disables RFC 931-based authentication, because 0 is specified.
• Enhanced DNS Extensions
This feature is used 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 allows 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 cidr (classless inter-domain
routing) 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 1-2 The passive Clause
The following are some examples for the 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 to.
NOTE: You cannot control the reported address in an IPv6 environment.
• PORT and PASV Data Connection
This feature enables the site administrator to selectively allow PORT and PASV
data connections. Usually a connection is not established if the remote IP address
18 WU-FTPD 2.6.1 Release Notes