UNIX LOGIN

[Gregory Gulik]

In article <23825 at adm.BRL.MIL> Bhargis at mrsa1 writes:
>I,ve logged in to some unix bulliten boards,, and immidiately got into menu
>driven procedures, asking your name, where you are calling from etc..
>eventually asking you to assign your own userid (for first time users), does 
>anyone know how that is accomplished,, sure would appriciate the info...
>I,ve been tasked to develop such a bulliten board, and would sure love to
>know how the unix login was bypassed,,,,,,,anyone with that knowledge???


Easy.

First, you create a login for new users to use.  I happen to use 'newuser'
here on Gagme.  Then, for the default shell, you put the path to the
executable file that contains the menu driven program.  I think it
has to be an executable image, not a shell script.

So, for example, here on Gagme I have:


newuser::106:1:New User:/usr/newuser:/usr/newuser/new

The newuser login has no password, and executes /usr/newuser/new
when it logs in, instead of the normal UNIX login...


-greg

-- 
Gregory A. Gulik					Call Gagme, a public
       greg at gagme.chi.il.us  ||  ...uunet!motcid!gulik	access UNIX system at
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