安装

curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.2.12.tgz

tar -zxvf mongodb-linux-x86_64-3.2.12.tgz

mv  mongodb-linux-x86_64-3.2.12/ /usr/local/mongodb

mkdir -p ./data/db
mkdir  ./logs

#数据文件存放目录
dbpath = /usr/local/mongodb/data/db
#日志文件存放目录
logpath = /usr/local/mongodb/logs/mongodb.log
#端口
port = 27017
#以守护程序的方式启用，即在后台运行
fork = true
nohttpinterface = true
auth=true
bind_ip=0.0.0.0

vi ~/.bashrc

export MONGODB_HOME=/usr/local/mongodb

export PATH=$MONGODB_HOME/bin:$PATH

source /etc/profile

mongod -f mongodb.conf 
或
./mongod -f mongodb.conf
或
mongod -f mongodb.conf --repair

mongod -f ./mongodb.conf --shutdown  
或
./mongod -f ./mongodb.conf --shutdown

官方文档：https://docs.mongodb.org/manual/tutorial/manage-mongodb-processes/

Stop mongod Processes
In a clean shutdown a mongod completes all pending operations, flushes all data to data files, and closes all data files. Other shutdowns are unclean and can compromise the validity of the data files.

To ensure a clean shutdown, always shutdown mongod instances using one of the following methods:

Use shutdownServer()
Shut down the mongod from the mongo shell using the db.shutdownServer() method as follows:

use admin
db.shutdownServer()
Calling the same method from a init script accomplishes the same result.

For systems with authorization enabled, users may only issue db.shutdownServer() when authenticated to the admin database or via the localhost interface on systems without authentication enabled.

Use --shutdown
From the Linux command line, shut down the mongod using the --shutdown option in the following command:

mongod --shutdown
Use CTRL-C
When running the mongod instance in interactive mode (i.e. without --fork), issue Control-C to perform a clean shutdown.

Use kill
From the Linux command line, shut down a specific mongod instance using the following command:

kill <mongod process ID>
WARNING

Never use kill -9 (i.e. SIGKILL) to terminate a mongod instance.

firewall-cmd --zone=public --add-port=27017/tcp --permanent
查看端口
firewall-cmd --permanent --query-port=27017/tcp
重启防火墙
firewall-cmd --reload

$ cd /usr/local/mongodb/bin
$ ./mongo
MongoDB shell version: 3.0.6
connecting to: test
Welcome to the MongoDB shell.
For more comprehensive documentation, see
        http://docs.mongodb.org/
Questions? Try the support group
        http://groups.google.com/group/mongodb-user

   切换到admin库，创建用户管理员：
   use admin
   db.createUser({user:"root",pwd:"root123456",roles:["userAdminAnyDatabase"]})
   db.auth('root','root123456')
   以用户管理员身份登录，并切换数据库，创建数据库用户：
   切换到test数据库
   use test
   创建用户名、密码、角色
   db.createUser({user:"username",pwd:"@user123456*",roles:[{role:"readWrite",db:"securitydata"}]})
   设置mongodb配置中的auth为true（/etc/mongod.conf）：
   security:
     authorization: enabled
   验证mongodb数据库权限。
   db.auth('user','@user123456*')

ps aux|grep mongo