problem:
The paramiko module failed to upload the file, and it prompts paramiko.ssh_exception.SSHException: Channel closed.
Use the python3 paramiko library to upload files to the remote server, the script is as follows:
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#!/usr/bin/env python# -*- coding:utf-8 -*-import paramikoimport uuidimport osclass Haproxy(object): def __init__(self): self.host = '10.224.96.87' self.port = 22 self.username = 'root' self.pwd = 'tahoe.webex' self.__k = None def create_file(self): file_name = str(uuid.uuid4()) with open(file_name,'w') as f: f.write('sb') return file_name def run(self): self.connect() self.upload() # self.rename() #self.close() def connect(self): transport = paramiko.Transport((self.host,self.port)) transport.connect(username=self.username,password=self.pwd) self.__transport = transport print("Connected to %s as %s" % (self.host, self.username)) def close(self): self.__transport.close() def upload(self): # connect and upload #file_name = self.create_file() localpath= r'C:\PF\cpu_memory.py' remotepath = r'/home/test.py' sftp = paramiko.SFTPClient.from_transport(self.__transport) # Upload the location.py to the server /tmp/test.py sftp.put(localpath, remotepath) print("File %s has uploaded to %s" % (localpath, remotepath)) def rename(self): ssh = paramiko.SSHClient() ssh._transport = self.__transport # Execution of commands stdin, stdout, stderr = ssh.exec_command('mv /home/root/tttttttttttt.py /home/root/ooooooooo.py') # Get command results result = stdout.read()ha = Haproxy()ha.run() |
But the error is reported as follows during runtime:
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However, it runs with the following error:C:\Users\yunliu3\AppData\Local\Programs\Python\Python39\python.exe C:/PF/test_bak.pyConnected to 10.224.96.87 as rootTraceback (most recent call last): File "C:\PF\test_bak.py", line 77, in <module> ha.run() File "C:\PF\test_bak.py", line 43, in run self.upload() File "C:\PF\test_bak.py", line 62, in upload sftp = paramiko.SFTPClient.from_transport(self.__transport) File "C:\Users\yunliu3\AppData\Local\Programs\Python\Python39\lib\site-packages\paramiko\sftp_client.py", line 169, in from_transport chan.invoke_subsystem("sftp") File "C:\Users\yunliu3\AppData\Local\Programs\Python\Python39\lib\site-packages\paramiko\channel.py", line 72, in _check return func(self, *args, **kwds) File "C:\Users\yunliu3\AppData\Local\Programs\Python\Python39\lib\site-packages\paramiko\channel.py", line 283, in invoke_subsystem self._wait_for_event() File "C:\Users\yunliu3\AppData\Local\Programs\Python\Python39\lib\site-packages\paramiko\channel.py", line 1226, in _wait_for_event raise eparamiko.ssh_exception.SSHException: Channel closed. Process finished with exit code 1 |
Reason: because the server sftp service is not turned on
solve:
1. Open /etc/ssh/sshd_config
2. Add the following code (first check the path of sftp-server
[root@frdsa002 ~]# find / -name sftp-server
/usr/libexec/openssh/sftp-server）
Subsystem sftp /usr/libexec/openssh/sftp-server
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