Python Basics (ix)

One, Paramiko module

1.1 Introduction

Paramiko is a free and open source module used to implement SSH2 protocol security (authentication and encryption) to connect to a remote computer using the module to perform command or file operations on a remote server, which is worth saying, The remote management of fabric and ansible is the use of Paramiko to reality.

1.2 Paramiko Simple to use

1) Sshclient:

Connect based on user name and password

ImportParamiko#To create an SSH objectSSH =Paramiko. Sshclient ()#allow connections to hosts that are not in the Know_hosts fileSsh.set_missing_host_key_policy (Paramiko. Autoaddpolicy ())#connecting to a serverSsh.connect (hostname='192.168.1.108', port=22,username='Root', password='123456')#Execute CommandStdin,stdout,stderr = Ssh.exec_command ('df-h')#Get command Resultsresult =Stdout.read (). Decode ()#Print ResultsPrint(Result)#Close ConnectionSsh.close ()

Show Results:
File system capacity has been used with available percent mount points
/dev/sda3 18G 13G 4.3G 75%/
Tmpfs 495M 4.0K 495M 1%/DEV/SHM
/DEV/SDA1 190M 48M 133M 27%/boot

Sshclient Package Transport:

ImportParamikotransport= Paramiko. Transport (('192.168.1.108', 22)) Transport.connect (username='Root', password='123456') SSH=Paramiko. Sshclient () Ssh._transport=Transportstdin,stdout,stderr= Ssh.exec_command ('free-m')Print(Stdout.read (). Decode ()) Transport.close ( )

The results show:
Total used free shared buffers cached
mem:988 437 551 0
-/+ buffers/cache:307 681
swap:2047 0 2047

Connection based on public key:

ImportParamikoprivate_key= Paramiko. Rsakey.from_private_key_file ('C:\id_rsa')#To create an SSH objectSSH =Paramiko. Sshclient ()#allow connections to hosts that are not in the Know_hosts fileSsh.set_missing_host_key_policy (Paramiko. Autoaddpolicy ())#connecting to a serverSsh.connect (hostname='192.168.1.108', port=22,username='Root', pkey=Private_key)#Execute CommandStdin,stdout,stderr = Ssh.exec_command ('df-h')#Get command Resultsresult =Stdout.read (). Decode ()Print(Result)#Close ConnectionSsh.close ()

Show Results:
File system capacity has been used with available percent mount points
/dev/sda3 18G 13G 4.3G 75%/
Tmpfs 495M 4.0K 495M 1%/DEV/SHM
/DEV/SDA1 190M 48M 133M 27%/boot

Sshclient Package Transport:

ImportParamikoprivate_key= Paramiko. Rsakey.from_private_key_file ('C:\id_rsa') Transport= Paramiko. Transport (('192.168.1.108', 22)) Transport.connect (username='Root', pkey=private_key) SSH=Paramiko. Sshclient () Ssh._transport=Transportstdin,stdout,stderr= Ssh.exec_command ('df-h')Print(Stdout.read (). Decode ()) Transport.close ( )

2) sftpclient

For connecting to a remote server and performing an upload download

ImportParamikotransport= Paramiko. Transport (('192.168.1.108', 22)) Transport.connect (username='Root', password='123456') sftp=Paramiko. Sftpclient.from_transport (transport)#The local Id_rsa file is uploaded to the server/tmp/belowSftp.put ('C:\id_rsa','/tmp/id_rsa')#Download the Nihao below/tmp to the local C: directorySftp.get ('/tmp/nihao','C:\\nihao') Transport.close ()

Upload and download based on public key keys

ImportParamikoprivate_key= Paramiko. Rsakey.from_private_key_file ('C:\id_rsa') Transport= Paramiko. Transport (('192.168.1.108', 22)) Transport.connect (username='Root', pkey=private_key) sftp=Paramiko. Sftpclient.from_transport (transport)#The local Id_rsa file is uploaded to the server/tmp/belowSftp.put ('C:\id_rsa','/tmp/id_rsa')#Download the Nihao below/tmp to the local C: directorySftp.get ('/tmp/nihao','C:\\nihao') Transport.close ()

Python Basics (ix)