php教程

ssh2_auth_password

(PECL ssh2 >= 0.9.0)

ssh2_auth_passwordAuthenticate over SSH using a plain password

说明

ssh2_auth_password ( resource $session , string $username , string $password ) : bool

Authenticate over SSH using a plain password. Since version 0.12 this function also supports keyboard_interactive method.

参数

session

An SSH connection link identifier, obtained from a call to ssh2_connect().

username

Remote user name.

password

Password for username

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

范例

Example #1 Authenticating with a password

<?php
$connection 
ssh2_connect('shell.example.com'22);

if (
ssh2_auth_password($connection'username''secret')) {
  echo 
"Authentication Successful!\n";
} else {
  die(
'Authentication Failed...');
}
?>

User Contributed Notes

sgchris at gmail dot com 29-Jun-2015 11:00
Please note that the function ssh2_auth_password raises PHP warning(!) on bad authentication. To avoid the warning, use the "silence" ("@") operator.

<?php
$ssh
= ssh2_connect($host);
if (
false === $ssh) {
    die(
'connection failed');
}

$auth = @ssh2_auth_password($ssh, $user, $password);
if (
false === $auth) {
    die(
'authentication failed');
}
?>
wally at soggysoftware dot co dot uk 11-Apr-2007 03:09
This function is useful for authenticating website clients against local (or remote) Unix users.

I'd played around with Apache+PAM, various mod_auths and homebrewed shell programs and even NIS, but to authenticate a user against a Unix shadow file fundamentally requires root priviledges, so either your PHP script needs root or an external program needs it's sticky bit set.  Both of these have *serious* security implications.

Using SSH, the overhead is obviously going to be greater but you're trusting a root service that's been (and continues to be) really well tested.  Just try authing with SSH against localhost (or another host if you want).
noels01 at gmx dot net 29-Aug-2005 05:56
Do not try to authenticate or log in more than once on a ssh2 connection. It won't work. You'll need a new connection via ssh2_connect() which will result in a poor performance if you're doing several connects to the same server.

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