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

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 of the
data connection does not match the remote IP address of the control connection
data. You can specify multiple passive addresses to handle complex or multi-gateway
networks.
The syntax for selectively allowing PORT and PASV data connections is as follows:
pasv-allow <class> [ addrglob ...]
port-allow <class> [ addrglob ...]
NOTE: You cannot selectively allow PORT and PASV data connections in an IPv6
environment.
• The keepalive Clause
The keepalive clause allows you to control network disconnect by setting the TCP
SO_ALIVE option for data sockets. You can specify yes to set the TCP option, or
no to use the system default settings, which is usually off. HP recommends that you
set the keepalive clause to yes to retain the network traffic connected.
The syntax for keepalive clause is as follows:
keepalive yes no
• The /etc/ftpd/ftpaccess log Clause
The log clause is changed to allow logging transfers to both the /var/adm/
syslog/syslog and /var/adm/syslog/xferlog files. This option enables
you to redirect the logging messages for incoming and outgoing transfers to the
/var/adm/syslog/syslog file. If you do not specify this option, the messages
are written to the /var/adm/syslog/xferlog file.
The general syntax to redirect messages is as follows:
log sysloglog syslog+xferlog
• File Retrieval
You can specify certain clauses to control whether a real or guest user is allowed
access to areas on the FTP site other than their home directories.
The syntax for the clauses that control access to areas on the FTP site is as follows:
restricted-uid <uid-range>[...]
restricted-gid <gid-range>[...]
unrestricted-uid <uid-range>[...]
unrestricted-gid <gid-range>[...]
WU-FTPD 2.6.1 Features 31