how to check for unix password

[bonono at gmail.com]

complicated issue. There is lots of authentication sub system that may
be in use(PAM, LDAP, Kerberos, /etc/shadow etc.). Each has a different
way. If it is linux, I think you should shoot for PAM, for other unix
system I have no idea.
/etc/passwd is a one way hash, you need the user submit the plain text
equivalent(better use SSL) then compute and compare.

However, if this is web page, I believe it would be better to use the
apache2 module which has relatively good integration with the
authentication system.

eight02645999 at yahoo.com wrote:
> hi
> i created a login page that authenticate the user and his/her password
> to the unix ssystem. what modules can i used to compare the unix
> password with what the user typed in the cgi form? the password is
> encrypted (shadowed) so i need to
> decrypt it first before comparing to what the user typed. or this
> cannot be done at all?
> thanks