dialups, d_passwd — dialup security control
are used to control the dialup security feature of
is present, the first word on each line is compared
with the name of the line upon which the login is being performed
as returned by
If the login is occurring on a line found in
dialup security is invoked.
Anything after a space or tab is ignored.
When dialup security is invoked,
requests an additional password,
and checks it against that found in
The command name found in the ``program to use as shell'' field of
is used to select the password to be used.
Each entry in
consists of three fields, separated by colons.
The first is the command name, matching an entry in
The second is the encrypted password to be used for dialup security
for those users logging in to use that program.
The third is commentary, but the second colon is required
to delimit the end of the password.
A null password is designated with two adjacent colons.
The entry for
is used if no other entry matches the command name taken from
dial-in tty lines