[insert_php]
print ‘You are using ‘ . $_SERVER[‘HTTP_USER_AGENT’] . ‘ from
. $_SERVER[‘REMOTE_ADDR’] . ‘
(
. gethostbyaddr($_SERVER[‘REMOTE_ADDR’]) . ‘
).’;
[/insert_php]

Certificate Detection

[insert_php]
if (@$_SERVER[‘SSL_CLIENT_S_DN_CN’]) {
print ‘Welcome, ‘ . $_SERVER[‘SSL_CLIENT_S_DN_CN’] . ‘.

. ‘A certificate for ‘ . $_SERVER[‘SSL_CLIENT_S_DN_Email’] . ‘
. ‘, issued by the ‘ . $_SERVER[‘SSL_CLIENT_I_DN_O’]
. ‘
, is correctly installed on your browser.

. ‘Your certificate will expire on ‘ . $_SERVER[‘SSL_CLIENT_V_END’] . ‘.’;
} else {
?>No certificate has been detected. Please ensure you are accessing
https://geofft.scripts.mit.edu:444/detect.php.[/insert_php]

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