安装mongodb
https://my.oschina.net/u/3939059/blog/1933194
linux os 防火墙设置
https://blog.csdn.net/ywd1992/article/details/80401630 elasticsearch 6https://blog.csdn.net/fxbin123/article/details/79682876
添加/删除用户和用户组https://blog.csdn.net/ywd1992/article/details/80401630
https://www.cnblogs.com/xd502djj/archive/2011/11/23/2260094.html
安装graylog
https://www.cnblogs.com/liang545621/p/9448402.html
graylog配置
https://cloud.tencent.com/developer/article/1431963
