开启ssh防火墙
firewall-cmd --add-service=ssh
服务配置文件
/etc/ssh/sshd_config
130多行
客户端配置文件
/etc/ssh/ssh_config
PermitRootLogin yes
客户端生成的公钥存放的位置
AuthorizedKeysFile .ssh/authorized_keys
systemctl restart sshd.service
ssh -p 22 用户名@ip
密钥认证原理:
ssh-keygen -t rsa
/root/.ssh/id_rsa
public key: /root/.ssh/id_rsa.pub
ssh-copy-id
ssh-copy-id -i id_rsa.pub root@blog.lwngxian.com
scp 远程copy
scp kpi.txt root@ip:/目录
scp root@ip:/目录 /tmp/k.txt