ubuntu@ip-172-31-0-12 => 현 개인 IP
ubuntu@ip-172-31-0-120:~$ su -
Password: (개인설정한 비밀번호)
root@ip-172-31-0-120:~# cd /home/ubuntu/tomcat/apache-tomcat-9.0.91/conf/
root@ip-172-31-0-120:/home/ubuntu/tomcat/apache-tomcat-9.0.91/conf# nano server.xml
=> 설정 변경
root@ip-172-31-0-120:/home/ubuntu/tomcat/apache-tomcat-9.0.91/conf# cd ..
root@ip-172-31-0-120:/home/ubuntu/tomcat/apache-tomcat-9.0.91# cd bin
==>
root@ip-172-31-0-120:~# cd /home/ubuntu/tomcat/apache-tomcat-9.0.91/bin
root@ip-172-31-0-120:/home/ubuntu/tomcat/apache-tomcat-9.0.91/bin# ./shutdown.sh
root@ip-172-31-0-120:/home/ubuntu/tomcat/apache-tomcat-9.0.91/bin# ./startup.sh