Paramiko：尝试在远程服务器上执行 python 时抛出错误

Question

I have a program to execute python on a remote server using Paramiko. So it is just that the script to call python is located in one remote server and the script caling is located on another.

So i thought of using Paramiko. But it is throwing me error. tried to correct error using different methods obtained from stack but in vain. Can anyone kindy help.

import paramiko 
import sys
import os 


host = "powe76nk.dfrlpw.com"
port = 8015
username = "tre@dfrlpw"
password = "abcd"

command = "D:\***\FlaskTest\Callfunction.py"

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, port, username, password)


stdin, stdout, stderr = ssh.exec_command(command)
lines = stdout.readlines()
print(lines) 

and it is throwing me error

D:\Programs\FlaskAPICallTest\CallingPythonFile>python testingserver.py
Traceback (most recent call last):
  File "testingserver.py", line 15, in <module>
    ssh.connect(host, port, username, password)
  File "C:\Users\fmxdev\AppData\Local\Programs\Python\Python38\lib\site-packages
\paramiko\client.py", line 368, in connect
    raise NoValidConnectionsError(errors)
paramiko.ssh_exception.NoValidConnectionsError: [Errno None] Unable to connect t
o port 8015 on *****

was not able to solve this issue and is checking this for the last 2 days. Is there any alternate for this

Answer 1

Your username should be tre and not tre@dfrlpw.

Also can you manually ssh into the server using ssh command or putty?