mongodb禁止外网访问及添加账号的操作方法

> use admin
switched to db admin
> db.createUser({user:"root",pwd:"123456",roles:["userAdminAnyDatabase"]})
Successfully added user: { "user" : "root", "roles" : [ "userAdminAnyDatabase" ] }

> show dbs
2017-12-03T22:14:58.418+0800 E QUERY  [thread1] Error: listDatabases failed:{
  "ok" : 0,
  "errmsg" : "not authorized on admin to execute command { listDatabases: 1.0 }",
  "code" : 13,
  "codeName" : "Unauthorized"
} .....

> db.auth('dpd','123456')

> use test
switched to db test
> db.blog.insert({name:1})
WriteResult({
  "writeError" : {
    "code" : 13,
    "errmsg" : "not authorized on test to execute command { insert: \"blog\", documents: [ { _id: ObjectId('5a240d8e2d43081ea4271cc8'), name: 1.0 } ], ordered: true }"
  }
})

> db.createUser({user:'use1',pwd:'123456',roles:["readWrite"]})
Successfully added user: { "user" : "use1", "roles" : [ "readWrite" ] }
> db.auth('use1','123456')
1
> db.blog.insert({name:1})
WriteResult({ "nInserted" : 1 })
>

mongodb://use1:123456@localhost:27017/test