>Any one please let me know how to use PHP to add new user to a domain for
>using mail (sendmail).
You mean like a *REAL* user with a login and everything?
Yikes!
DANGER, WILL ROBINSON DANGER!
You *REALLY* shouldn't do this unless you *REALLY* understand Un*x
permissions and system security. HIGHLY DANGEROUS.
1st. Draw up a security diagram of *WHO* can access this page and *HOW* they
can access it and make damn sure *NOBODY* you don't trust can't access it.
You'll want this happening over SSL (HTTPS) so your communication is secure.
2nd. You'll have to muck with the /etc/passwd and shadow password files
directly, almost for sure. The password routines for "user_add" and so on
require a TTY connection (IE, a "real" login) and PHP ain't got one.
3rd. You'll need to have sudo scripts running to do 2. Or, *MAYBE* a PHP
CGI running via suExec as "root" and all the scripts are root-owned and not
world-readable, much less world-writable nor world-executable, but *NOT*
*NOT* *NOT* if *OTHER* people can use the same web-server and upload their
*OWN* PHP scripts that will get executed as 'root' Bad Idea.
4th. Make sure those sudo scripts can *ONLY* be run by people you trust.
You *MIGHT* be able to more easily allow sendmail to send emails or create
some kind of "virtual" user that doesn't have an actual login, even though
they have a directory for their mailbox, and then give them a web-interface
to read that email or something. This would be infinitely more secure, if
it's possible.
Letting PHP create shell logins is just plain DANGEROUS.
Did I mention it was DANGEROUS? It is.
>And also any funtions to check the availibility of a
>domain name.
Search code archives for "whois" or try this out:
<?php
exec("/usr/bin/whois $domainname", $results, $error);
echo implode("<BR>\n", $results);
if ($error){
echo "OS Error $error. Usually path/permissions. Read 'man errno' to
be sure.<BR>";
}
?>
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