linux command

1) 방화벽 disable 

systemctl stop firewalld

2) 방화벽 부팅시 실행 disable

systemctl disable firewalld

3) 방화벽 등록된 리스트 출력

firewall-cmd --list-ports

4) online copy (scp: secure copy)

: local -> remote

scp file1 root@192.168.0.1:/root/data

scp -r folder1 root@192.168.0.1:/root/data

: remote -> local

scp root@192.168.0.1:/root/data /root