目标:
1). 172.25.254.3 - host3
172.25.254.4 - host4
2). host4实现无密码连接host3
host3操作: 生成公钥和私钥, 并发送私钥给host4
993 ssh-keygen
994 cd /root/.ssh/
995 ls
996 ssh-copy-id -i id_rsa.pub [email protected]
997 scp id_rsa [email protected]:/home/kiosk/.ssh/
host4操作:
a). shell命令检测是否可以成功?
ssh [email protected]
b). 代码实现:
import paramiko
# ssh [email protected]
# 创建一个ssh对象;
client = paramiko.SSHClient()
# 实例化一个私钥对象
private_key = paramiko.RSAKey.from_private_key_file('/home/kiosk/.ssh/id_rsa')
# 2. 解决问题:如果之前没有;连接过的ip, 会出现
# Are you sure you want to continue connecting (yes/no)? yes
# 自动选择yes
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
# 3. 连接服务器
client.connect(
hostname='172.25.254.3',
username='root',
pkey= private_key ,
)
# 4. 执行操作
stdin, stdout, stderr = client.exec_command('hostname')
# 5. 获取命令的执行结果;
print(stdout.read().decode('utf-8'))
# 6. 关闭连接
client.close()
import paramiko
#ssh [email protected]
创建一个ssh对象;
client = paramiko.SSHClient()
实例化一个私钥对象
private_key = paramiko.RSAKey.from_private_key_file(‘doc/id_rsa’)
2. 解决问题:如果之前没有;连接过的ip, 会出现
Are you sure you want to continue connecting (yes/no)? yes
自动选择yes
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
3. 连接服务器
client.connect(
hostname=‘172.25.254.3’,
username=‘root’,
pkey= private_key ,
)
4. 执行操作
stdin, stdout, stderr = client.exec_command(‘hostname’)
5. 获取命令的执行结果;
print(stdout.read().decode(‘utf-8’))
6. 关闭连接
client.close()