Turn to two articles: Security settings and performance tuning from the following aspects
1. Disable port 8005
2. Turn off automatic deployment
3. MaxThreads connection limit modification configuration
4. Connector parameter optimization configuration
5. Hide or modify the Tomcat version number
6 , Delete the disabled default management page and related configuration files
Author Ren Wole : Apache Tomcat 8.5 Security Configuration and High Concurrency Optimization
Author Struggle, Brother: Tomcat8 Performance Optimization