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Old 04-13-2004, 08:37 PM   #1
Registered: Sep 2003
Location: Dallas TX
Distribution: Red Hat
Posts: 59

Rep: Reputation: 15
PHP Authentication against /etc/shadow

I am fairly new with Linux (using RedHat 9 currently) and very new to php.
I hope I have this is the right area...

I am trying to do the following (in PHP)...

1. User submits a form that has their Username and Password
2. Page encrypts the password to check the username and password against the /etc/shadow file.
3. Page then allows the user to see his or her Disk Quotas and account details.

I have tried the following, but am getting an error "WARNING: fopen("/etc/shadow", "r") - Permission denied
(BTW all I am trying to do right now is see if the username is in the file)

the code is as follows:

$fd = fopen("/etc/shadow", "r") or die('File not availalbe');
while (!feof($fd))
$line = fgets($fd, 4096);
if ($line === $username)
echo "Match Found";
echo "No Match";

Any help would be greatly appreciated. I would like to do this without changing file permissions if I can.
Old 04-13-2004, 11:55 PM   #2
Registered: Sep 2003
Location: Dallas TX
Distribution: Red Hat
Posts: 59

Original Poster
Rep: Reputation: 15
I figured it out. Unfortunatly I had to reset the permissions, but nothing that was to major.


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