root@zhoujinyi:/usr/local/mongo4# mongo --port=27020MongoDB shell version: 3.0.4connecting to: 127.0.0.1:27020/test2015-06-29T09:31:08.673-0400 I CONTROL  [initandlisten] > show dbs;local  0.078GB

> use adminswitched to db admin> db.createUser(...   {...     user: "dba",...     pwd: "dba",...     roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]...   }... )Successfully added user: {    "user" : "dba",    "roles" : [        {            "role" : "userAdminAnyDatabase",            "db" : "admin"        }    ]}

Built-In Roles（内置角色）：1. 数据库用户角色：read、readWrite;2. 数据库管理角色：dbAdmin、dbOwner、userAdmin；3. 集群管理角色：clusterAdmin、clusterManager、clusterMonitor、hostManager；4. 备份恢复角色：backup、restore；5. 所有数据库角色：readAnyDatabase、readWriteAnyDatabase、userAdminAnyDatabase、dbAdminAnyDatabase6. 超级用户角色：root  // 这里还有几个角色间接或直接提供了系统超级用户的访问（dbOwner 、userAdmin、userAdminAnyDatabase）7. 内部角色：__system

Read：允许用户读取指定数据库readWrite：允许用户读写指定数据库dbAdmin：允许用户在指定数据库中执行管理函数，如索引创建、删除，查看统计或访问system.profileuserAdmin：允许用户向system.users集合写入，可以找指定数据库里创建、删除和管理用户clusterAdmin：只在admin数据库中可用，赋予用户所有分片和复制集相关函数的管理权限。readAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的读权限readWriteAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的读写权限userAdminAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的userAdmin权限dbAdminAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的dbAdmin权限。root：只在admin数据库中可用。超级账号，超级权限

root@zhoujinyi:/usr/local/mongo4# mongo --port=27020MongoDB shell version: 3.0.4connecting to: 127.0.0.1:27020/test> show dbs;    ####没有验证，导致没权限。2015-06-29T10:02:16.634-0400 E QUERY    Error: listDatabases failed:{    "ok" : 0,    "errmsg" : "not authorized on admin to execute command { listDatabases: 1.0 }",    "code" : 13}    at Error (<anonymous>)    at Mongo.getDBs (src/mongo/shell/mongo.js:47:15)    at shellHelper.show (src/mongo/shell/utils.js:630:33)    at shellHelper (src/mongo/shell/utils.js:524:36)    at (shellhelp2):1:1 at src/mongo/shell/mongo.js:47> use admin        #验证，因为在admin下面添加的帐号，所以要到admin下面验证。switched to db admin> db.auth(‘dba‘,‘dba‘)1> show dbs;admin  0.078GBlocal  0.078GB> use test        #在test库里创建帐号switched to db test> db.createUser(...     {...       user: "zjyr",...       pwd: "zjyr",...       roles: [...          { role: "read", db: "test" }    #只读帐号...       ]...     }... )Successfully added user: {    "user" : "zjyr",    "roles" : [        {            "role" : "read",            "db" : "test"        }    ]}> db.createUser(...     {...       user: "zjy",...       pwd: "zjy",...       roles: [...          { role: "readWrite", db: "test" }   #读写帐号...       ]...     }... )Successfully added user: {    "user" : "zjy",    "roles" : [        {            "role" : "readWrite",                #读写账号            "db" : "test"        }    ]}> show users;                                    #查看当前库下的用户{    "_id" : "test.zjyr",    "user" : "zjyr",    "db" : "test",    "roles" : [        {            "role" : "read",            "db" : "test"        }    ]}{    "_id" : "test.zjy",    "user" : "zjy",    "db" : "test",    "roles" : [        {            "role" : "readWrite",            "db" : "test"        }    ]}

> db.abc.insert({"a":1,"b":2})              #插入失败，没有权限，userAdminAnyDatabase 权限只是针对用户管理的，对其他是没有权限的。WriteResult({    "writeError" : {        "code" : 13,        "errmsg" : "not authorized on test to execute command { insert: \"abc\", documents: [ { _id: ObjectId(‘55915185d629831d887ce2cb‘), a: 1.0, b: 2.0 } ], ordered: true }"    }})> byeroot@zhoujinyi:/usr/local/mongo4# mongo --port=27020MongoDB shell version: 3.0.4connecting to: 127.0.0.1:27020/test> use testswitched to db test> db.auth(‘zjy‘,‘zjy‘)       #用创建的readWrite帐号进行写入1> db.abc.insert({"a":1,"b":2})WriteResult({ "nInserted" : 1 })> db.abc.insert({"a":11,"b":22})WriteResult({ "nInserted" : 1 })> db.abc.insert({"a":111,"b":222})WriteResult({ "nInserted" : 1 })> db.abc.find(){ "_id" : ObjectId("559151a1b78649ebd8316853"), "a" : 1, "b" : 2 }{ "_id" : ObjectId("559151cab78649ebd8316854"), "a" : 11, "b" : 22 }{ "_id" : ObjectId("559151ceb78649ebd8316855"), "a" : 111, "b" : 222 }> db.auth(‘zjyr‘,‘zjyr‘)       #切换到只有read权限的帐号1> db.abc.insert({"a":1111,"b":2222})  #不能写入WriteResult({    "writeError" : {        "code" : 13,        "errmsg" : "not authorized on test to execute command { insert: \"abc\", documents: [ { _id: ObjectId(‘559151ebb78649ebd8316856‘), a: 1111.0, b: 2222.0 } ], ordered: true }"    }})> db.abc.find()        #可以查看{ "_id" : ObjectId("559151a1b78649ebd8316853"), "a" : 1, "b" : 2 }{ "_id" : ObjectId("559151cab78649ebd8316854"), "a" : 11, "b" : 22 }{ "_id" : ObjectId("559151ceb78649ebd8316855"), "a" : 111, "b" : 222 }

> db.auth(‘dba‘,‘dba‘)1> db.createUser(...  {...    user: "zhoujinyi",...    pwd: "zhoujinyi",...    roles: [...       { role: "root", db: "admin" }      #超级root帐号...    ]...  }... )Successfully added user: {    "user" : "zhoujinyi",    "roles" : [        {            "role" : "root",            "db" : "admin"        }    ]}> > show users;              #查看当前库下的用户{    "_id" : "admin.dba",    "user" : "dba",    "db" : "admin",    "roles" : [        {            "role" : "userAdminAnyDatabase",            "db" : "admin"        }    ]}{    "_id" : "admin.zhoujinyi",    "user" : "zhoujinyi",    "db" : "admin",    "roles" : [        {            "role" : "root",            "db" : "admin"        }    ]}> use adminswitched to db admin> db.auth(‘zhoujinyi‘,‘zhoujinyi‘)1> use testswitched to db test> db.abc.insert({"a":1,"b":2})WriteResult({ "nInserted" : 1 })> db.abc.insert({"a":1111,"b":2222})          #权限都有WriteResult({ "nInserted" : 1 })> db.abc.find(){ "_id" : ObjectId("5591539bb78649ebd8316857"), "a" : 1, "b" : 2 }{ "_id" : ObjectId("559153a0b78649ebd8316858"), "a" : 1111, "b" : 2222 }> db.abc.remove({})WriteResult({ "nRemoved" : 2 })

> dbadmin> db.createUser(...  {...    user: "dxy",...    pwd: "dxy",...    roles: [...       { role: "readWrite", db: "test" },     #在当前库下创建其他库的帐号，在admin库下创建test、abc库的帐号...       { role: "readWrite", db: "abc" }         ...    ]...  }... )Successfully added user: {    "user" : "dxy",    "roles" : [        {            "role" : "readWrite",            "db" : "test"        },        {            "role" : "readWrite",            "db" : "abc"        }    ]}> > show users;{    "_id" : "admin.dba",    "user" : "dba",    "db" : "admin",    "roles" : [        {            "role" : "userAdminAnyDatabase",            "db" : "admin"        }    ]}{    "_id" : "admin.zhoujinyi",    "user" : "zhoujinyi",    "db" : "admin",    "roles" : [        {            "role" : "root",            "db" : "admin"        }    ]}{    "_id" : "admin.dxy",    "user" : "dxy",    "db" : "admin",    "roles" : [        {            "role" : "readWrite",            "db" : "test"        },        {            "role" : "readWrite",            "db" : "abc"        }    ]}> use testswitched to db test> db.auth(‘dxy‘,‘dxy‘)          #在admin下创建的帐号，不能直接在其他库验证，Error: 18 Authentication failed.0> use adminswitched to db admin            #只能在帐号创建库下认证，再去其他库进行操作。> db.auth(‘dxy‘,‘dxy‘)1> use testswitched to db test> db.abc.insert({"a":1111,"b":2222})WriteResult({ "nInserted" : 1 })> use abcswitched to db abc> db.abc.insert({"a":1111,"b":2222})WriteResult({ "nInserted" : 1 })

>  use adminswitched to db admin> db.auth(‘dba‘,‘dba‘)1> db.system.users.find().pretty(){    "_id" : "admin.dba",    "user" : "dba",    "db" : "admin",    "credentials" : {        "SCRAM-SHA-1" : {            "iterationCount" : 10000,            "salt" : "KfDUzCOIUo7WVjFr64ZOcQ==",            "storedKey" : "t4sPsKG2dXnZztVYj5EgdUzT9sc=",            "serverKey" : "2vCGiq9NIc1zKqeEL6VvO4rP26A="        }    },    "roles" : [        {            "role" : "userAdminAnyDatabase",            "db" : "admin"        }    ]}{    "_id" : "test.zjyr",    "user" : "zjyr",    "db" : "test",    "credentials" : {        "SCRAM-SHA-1" : {            "iterationCount" : 10000,            "salt" : "h1gOW3J7wzJuTqgmmQgJKQ==",            "storedKey" : "7lkoANdxM2py0qiDBzFaZYPp1cM=",            "serverKey" : "Qyu6IRNyaKLUvqJ2CAa/tQYY36c="        }    },    "roles" : [        {            "role" : "read",            "db" : "test"        }    ]}{    "_id" : "test.zjy",    "user" : "zjy",    "db" : "test",    "credentials" : {        "SCRAM-SHA-1" : {            "iterationCount" : 10000,            "salt" : "afwaKuTYPWwbDBduQ4Hm7g==",            "storedKey" : "ebb2LYLn4hiOVlZqgrAKBdStfn8=",            "serverKey" : "LG2qWwuuV+FNMmr9lWs+Rb3DIhQ="        }    },    "roles" : [        {            "role" : "readWrite",            "db" : "test"        }    ]}{    "_id" : "admin.zhoujinyi",    "user" : "zhoujinyi",    "db" : "admin",    "credentials" : {        "SCRAM-SHA-1" : {            "iterationCount" : 10000,            "salt" : "pE2cSOYtBOYevk8tqrwbSQ==",            "storedKey" : "TwMxdnlB5Eiaqg4tNh9ByNuUp9A=",            "serverKey" : "Mofr9ohVlFfR6/md4LMRkOhXouc="        }    },    "roles" : [        {            "role" : "root",            "db" : "admin"        }    ]}{    "_id" : "admin.dxy",    "user" : "dxy",    "db" : "admin",    "credentials" : {        "SCRAM-SHA-1" : {            "iterationCount" : 10000,            "salt" : "XD6smcWX4tdg/ZJPoLxxRg==",            "storedKey" : "F4uiayykHDp/r9krAKZjdr+gqjM=",            "serverKey" : "Kf51IU9J3RIrB8CFn5Z5hEKMSkw="        }    },    "roles" : [        {            "role" : "readWrite",            "db" : "test"        },        {            "role" : "readWrite",            "db" : "abc"        }    ]}> db.system.users.find().count()5

root@zhoujinyi:~# mongodump --port=27020 -uzjyr -pzjyr --db=test -o backup   #只要读权限就可以备份2015-06-29T11:20:04.864-0400    writing test.abc to backup/test/abc.bson2015-06-29T11:20:04.865-0400    writing test.abc metadata to backup/test/abc.metadata.json2015-06-29T11:20:04.866-0400    done dumping test.abc2015-06-29T11:20:04.867-0400    writing test.system.indexes to backup/test/system.indexes.bsonroot@zhoujinyi:~# mongorestore --port=27020 -uzjy -pzjy --db=test backup/test/  #读写权限可以进行还原2015-06-29T11:20:26.607-0400    building a list of collections to restore from backup/test/ dir2015-06-29T11:20:26.609-0400    reading metadata file from backup/test/abc.metadata.json2015-06-29T11:20:26.609-0400    restoring test.abc from file backup/test/abc.bson2015-06-29T11:20:26.611-0400    error: E11000 duplicate key error index: test.abc.$_id_ dup key: { : ObjectId(‘559154efb78649ebd831685a‘) }2015-06-29T11:20:26.611-0400    restoring indexes for collection test.abc from metadata2015-06-29T11:20:26.612-0400    finished restoring test.abc2015-06-29T11:20:26.612-0400    done