Well, I can honestly say I had not thought of doing it that way. I will
keep that as an option. Thanks.
Jonathan
On Thu, 2 Dec 2004, Gryffyn, Trevor wrote:
If it's a un*x system and you have permissions to connect to the SMTP
server, you could use the VRFY command to check to see if their email
address exists or not maybe:
Example of Verifying a User Name
Either
S: VRFY Smith
R: 250 Fred Smith <Smith@xxxxxxxxxxxxx>
Or
S: VRFY Smith
R: 251 User not local; will forward to <Smith@xxxxxxxxxxxxx>
Or
S: VRFY Jones
R: 550 String does not match anything.
Or
S: VRFY Jones
R: 551 User not local; please try <Jones@xxxxxxxxxxxxx>
Or
S: VRFY Gourzenkyinplatz
R: 553 User ambiguous.
(examples taken from: http://www.ietf.org/rfc/rfc0821.txt Page 8)
Just a thought.
-TG
-----Original Message-----
From: news.php.net [mailto:jonathan@xxxxxxxxxx]
Sent: Wednesday, December 01, 2004 7:57 PM
To: php-general@xxxxxxxxxxxxx
Subject: Page that checks if a user exists on a remote system
I have two servers: ServerA and ServerB. One server serves
web pages, the
other serves mail. I am making a web page on ServerA that
will access
ServerB to find out if a users exists and if not then add
that user to
ServerB with information collected from the web page on ServerA.
I have this in a php file:
$idResults = `ssh admin@xxxxxxxxxx id bigbob 2>&1`;
echo "id: (".$idResults.")\r\n"."\r\n";
if (ereg("no such user", $idResults)) {
echo 'username is available!';
}
When I access the page I get:
Could not create directory '/nonexistent/.ssh'.
Host key verification failed.
This, of course, is because the script is being run as "www"
who has no
place to put ssl keys.
Could this be solved by having "www" "su" to a user who has
remote access
privileges? Something like this:
$idResults = `su admin | ssh admin@xxxxxxxxxx id bigbob 2>&1`;
echo "id: (".$idResults.")\r\n"."\r\n";
if (ereg("no such user", $idResults)) {
echo 'username is available!';
// function addUserToServerB(vars);
}
Anyone else doing or done something like this?
Thanks,
--
Jonathan Duncan
http://www.nacnud.com
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