ftpgroups.4 (2010 09)

f
ftpgroups(4) ftpgroups(4)
NAME
ftpgroups - group password file for use with the SITE GROUP and SITE GPASS commands.
SYNOPSIS
/etc/ftpd/ftpgroups
DESCRIPTION
The ftpgroups file is the group password file for use with the SITE GROUP and SITE GPASS com-
mands.
To enable the use of this file, the entry
private yes must be made in the configuration file
/etc/ftpd/ftpaccess
.
This file contains an alphanumeric string, encrypted password, and the actual group name from the
/etc/group file. Each entry is separated by
:. After a user logs in, the SITE GROUP and SITE
GPASS commands may be used to specify an enhanced access group and associated password. If the
group name and password are valid, the user becomes (via
setgid()) a member of the group specified
in the group access file,
/etc/ftpd/ftpgroups
.
The format of the group access file is:
access_group_name
:encrypted_password
:real_group_name
where access_group_name is an arbitrary (alphanumeric and/or punctuation) string. encrypted_password
is the password encrypted via crypt (3), exactly like in
/etc/passwd. real_group_name is the name of a
valid group listed in
/etc/group.
NOTE: For this option to work for anonymous FTP users, the ftp server must keep
/etc/group per-
manently open and the group access file is loaded into memory. This means that:
(1) the ftp server now has an additional file descriptor open, and
(2) the necessary passwords and access privileges granted to users via SITE GROUP will be static
for the duration of an FTP session.
If you have an urgent need to change the access groups and/or passwords *NOW*, then kill all of the run-
ning FTP servers.
FILES
/etc/ftpd/ftpgroups
AUTHOR
ftpgroups was developed by the Washington University, St. Louis, Missouri.
SEE ALSO
ftpaccess(4).
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1