1、下载：https://www.mongodb.org/dl/linux/mongodb-linux-x86_64-rhel62-3.6.21-rc2.tgz
2、解压：tar -xvf mongodb-linux-x86_64-rhel62-3.6.21-rc2.tgz -C /usr/local/mongodb
3、相关目录创建：
数据库：mkdir -p /usr/local/application/mongodb/data
日志：touch /usr/local/application/mongodb/logs
配置文件：touch /usr/local/mongodb/mongodb.conf
配置文件内容如下：
dbpath=/usr/local/application/mongodb/data
logpath=/usr/local/application/mongodb/logs
port=27017
fork=true
logappend=true
4、开机启动：vim /etc/rc.local，最后添加：/usr/local/mongodb/bin/mongod --dbpath=/usr/local/application/mongodb/data --logpath=/usr/local/application/mongodb/logs --logappend --auth --port=27017
配置文件启动：/usr/local/mongodb/bin/mongod --config /usr/local/mongodb/mongodb.conf
