NAME
privatepw — change WU-FTPD group access file information
SYNOPSIS
/usr/bin/privatepw
[-c]
[-d
accessgroup]
[-f
ftpgroups]
[-g
group
accessgroup]
[-l]
[-V]
DESCRIPTION
If a site supports the SITE GROUP and SITE GPASS commands, it is necessary
to be able to add, delete and list enhanced access group information.
The
privatepw
utility is used to update this information in the group access
file
(/etc/ftpd/ftpgroups).
This is meant as an administrative tool
and not to be run by the general user population.
This command
requires read/write permission to the appropriate ftpgroups file.
Options
In the options defined below,
accessgroup
is an alphanumeric name specified to a group.
Please see the
Background
section for details.
- -c
Create a new
/etc/ftpd/ftpgroups
file.
- -d accessgroup
Delete the specified
accessgroup
information from the
ftpgroups
file.
- -f ftpgroups
Use the specified
ftpgroups
file for all updates.
If this option is not specified by default it takes the
/etc/ftpd/ftpgroups
file.
- -g group accessgroup
Set the real system group (defined in
/etc/group)
to the
accessgroup
specified.
This is valid only when adding a new
accessgroup
or changing the password of an existing
accessgroup.
- -l
List the contents of the appropriate ftpgroups file.
- -V
This option causes the program to display copyright and version information,
then terminate.
Background
After 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
setegid())
a member of the group list 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 +
punctuation) string.
encrypted_password
is the password encrypted via
crypt(3C),
exactly like in
/etc/passwd.
real_group_name
is the name of a valid group listed in
/etc/group.
AUTHOR
privatepw
was developed by the Washington University, St. Louis, Missouri.
Printable version
