# 生成密钥对，本地放私钥，公钥放到平台，
$ ssh-keygen -t rsa -N "" -f id_rsa
$ ssh-copy-id -i /path/to/public_key.pub username@hostname$ ssh -i id_rsa root@10.10.10.10$ scp -i id_rsa xxx root@10.10.10.10:/tmp/
$ scp -i id_rsa root@10.10.10.10:/tmp/ xxx localhost:~
$ cd ~/.ssh
localhost:.ssh
$ ll
-rwx------@ 1 adward staff 3243 2 17 2023 AI-general-key.pem
-rw-r--r-- 1 adward staff 400 10 15 2022 authorized_keys
-rw-r--r-- 1 adward staff 148 9 2 22:13 config
-rw------- 1 adward staff 2761 9 2 21:59 id_rsa
-rw-r--r-- 1 adward staff 586 12 7 2021 id_rsa.pub
-rw------- 1 adward staff 3579 11 29 21:29 known_hosts
-rw------- 1 adward staff 2746 11 21 09:33 known_hosts.old
-rw------- 1 adward staff 3554 9 10 21:21 known_hosts.old2
