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set up ssh ​

sh
vim /etc/ssh/sshd_config
 PasswordAuthentication no
 ChallengeResponseAuthentication no
 UsePAM no
 chmod 700 .ssh
 chmod 600 .ssh/*
vim /etc/ssh/sshd_config
 PasswordAuthentication no
 ChallengeResponseAuthentication no
 UsePAM no
 chmod 700 .ssh
 chmod 600 .ssh/*

on windows use psftp ​

sh
open root@vmdev
put xxx/id_rsa.pub
cat id_rsa.pub >> ~/.ssh/authorized_keys
open root@vmdev
put xxx/id_rsa.pub
cat id_rsa.pub >> ~/.ssh/authorized_keys

use scp ​

从本地拷贝到远程服务器

sh
scp -r xxx root@xxx:/root
scp -r xxx root@xxx:/root

从远程服务器下载

sh
scp -r root@xxx:/root xxx
scp -r root@xxx:/root xxx

if you are user group and you have root ​

sh
chmod 777 -Rf xxx
chmod 777 -Rf xxx