MongoDB authentication downgrade

Background: As the business feedback MongoDB PHP client migration lead to abnormal connections DB, the investigation found MongoDB3.0 version of authentication and authorization mechanism is SCRAM-SHA-1, the program drives the abnormal, need to be downgraded to an authentication and authorization mechanisms: MONGODB-CR

 

Downgrade following authentication (login authentication to the situation in the absence of):

1, the configuration file comments authentication

security:

   keyFile: /data1/ceshi27020_mongo/etc/keyfile

   authorization: enabled

2, restart mongo

3, run the following command on the master:

db.system.users.find();

db.system.version.findOne();

var schema = db.system.version.findOne({"_id" : "authSchema"}) 

schema.currentVersion = 3 

db.system.version.save(schema) 

Rebuild User:

db.dropUser('test_rw');

db.createUser( { "user" : "test_rw",

"pwd": "iwoCsl173",

"roles" : [{ role: "readWrite", db: "lsession" }] });

4, open authentication, restart MongoDB

 

Version 3.0 authentication and authorization mechanisms: SCRAM-SHA-1

After the authentication and authorization mechanisms degradation: MONGODB-CR

 

PHP is connected MongoDB Code Example:

root@xxx-xxxx:/# cat mongo.php 

<?php

$server = 'mongodb://10.x.x.x:27030';

$options = array(

                'db'=>'admin',//',

                'username' => 'dba',//',

                'password' => 'xxxxxxxx',

                'replicaSet' => 'test3',

                'readPreference' => MongoClient::RP_SECONDARY_PREFERRED,

                // 'readPreference' => MongoClient::RP_PRIMARY,

                'connectTimeoutMS'=>5000,

                );

$mongo = new MongoClient($server, $options);

$db = $mongo->selectDB('zyq');

$coll = $db->selectCollection('test10');

$result = $coll->find(array("userid"=>30748));

while($doc = $result->getNext()){

        var_dump($doc);

}

Execution OK!