WU-FTPD 2.6.1 Release Notes (5900-2465, September 2012)

Table 1 FTP Daemon timeout Options (continued)
DescriptionOption
The maximum time period the daemon allows for entire RFC 931 (Authentication Server)
conversation. The default value is 10 seconds.
RFC931
The SITE IDLE command allows the remote client to establish a higher value for the idle
timeout. With the maxidle option set in the /etc/ftpd/ftpaccess file, you can override
the value set with the SITE IDLE command. The default value is 1200 seconds.
maxidle
The syntax for the timeout clauses are as follows:
timeout accept <seconds>
timeout connect <seconds>
timeout data <seconds>
timeout idle <seconds>
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>
22 WU-FTPD 2.6.1 Release Notes