Python tool authoring Paramiko for SSH remote connection

There are three ways to implement a client:

1: Login with account password

1.1 Execute the command directly on the server using the Sshclient object's Exec_command ():

Code implementation:

Import Paramiko
Import Sys

Def Usage ():
print "[usage]./ssh_client.py IP Port Command]


Try
IP=SYS.ARGV[1]
Port=int (Sys.argv[2])
COMMAND=SYS.ARGV[3]
Except
Usage ()


User= "Root"
passwd= "Root"
#实例化SSHClient
Client=paramiko. Sshclient ()
#自动添加策略, save the host name and key information for the server
#用ssh连接远程主机时, the first connection will be prompted whether to continue the remote connection, select Yes this sentence will automatically select Yes
Client.set_missing_host_key_policy (Paramiko. Autoaddpolicy ())
#连接SSH服务端, authenticate with user name and password
Client.connect (IP,PORT,USERNAME=USER,PASSWORD=PASSWD)
#打开一个Channel and execute the command
Stdin,stdout,stderr=client.exec_command (command)
#打印执行结果 If there is an error stderr.read () is not empty
If stderr.read () = = "":
For I in Stdout.readlines ():
Print I
Client.close ()

1.2 Instantiate the Sshclient object and get a transport object to execute the command on the server with the transport object's Exec_command ()

Import Sys
Import Paramiko

Def Usage ():
print "[usage]./ssh_client.py IP Port Command]


Try
IP=SYS.ARGV[1]
Port=int (Sys.argv[2])
COMMAND=SYS.ARGV[3]
Except
Usage ()

# reload (SYS)
# sys.setdefaultencoding (' Utf-8 ')
User= "Root"
passwd= "Root"
#实例化SSHClient
Client=paramiko. Sshclient ()
#自动添加策略, save the host name and key information for the server
#用ssh连接远程主机时, the first connection will be prompted whether to continue the remote connection, select Yes this sentence will automatically select Yes
Client.set_missing_host_key_policy (Paramiko. Autoaddpolicy ())
#连接SSH服务端, authenticate with user name and password
Client.connect (IP,PORT,USERNAME=USER,PASSWORD=PASSWD)
#实例化Transport Establishing session Sessions
Ssh_session=client.get_transport (). Open_session ()
If ssh_session.active:
Ssh_session.exec_command (command)
Print SSH_SESSION.RECV (4096)
Client.close ()

2: Log in with the key

Import Paramiko
Import Sys

Def Usage ():
print "[usage]./ssh_client.py IP Port Command]


Try
IP=SYS.ARGV[1]
Port=int (Sys.argv[2])
COMMAND=SYS.ARGV[3]
Except
Usage ()

User= "Root"

#实例化SSHClient
Client=paramiko. Sshclient ()
#指定用来解密的私钥的路径, you need to manually generate
Pkey_file = '/home/.ssh/id_rsa '
#使用私钥解密
Key = Paramiko. Rsakey.from_private_key_file (Pkey_file)
#load_system_host_keys用于指定对方主机存放本机公钥的位置, the default parameter is to set this location to ~/.ssh/known_hosts
Client.load_system_host_keys ()
#自动添加策略, save the host name and key information for the server
#用ssh连接远程主机时, the first connection will be prompted whether to continue the remote connection, select Yes this sentence will automatically select Yes
Client.set_missing_host_key_policy (Paramiko. Autoaddpolicy ())
#连接SSH服务端, authenticate with user name and password
Client.connect (ip,port,username=user,key_filename=key,timeout=6)
#打开一个Channel and execute the command
Stdin,stdout,stderr=client.exec_comment (command)
#打印执行结果 If there is an error stderr.read () is not empty
If stderr.read () = = "":
Print Stdout.readlines ()
Client.close ()

Implement upload and download:

Import Paramiko
#获取Transport实例 parameter is tuple
Tran = Paramiko. Transport (("192.168.72.130", 22))
#连接SSH服务端
Tran.connect (username = "root", password = "root")
#获取SFTP实例
SFTP = Paramiko. Sftpclient.from_transport (Tran)
#设置上传的本地/Remote file path
#执行上传动作
Sftp.put ("C:/7.der", "/tmp/7.der")
Sftp.get ('/root/test.py ', ' f:/test.py ')
Tran.close ()

Issues that occur during the implementation:

Import Paramiko appears unicodedecodeerror: ' ASCII ' codec can ' t decode byte 0xe9 in position 0:ordinal not in range (128) error

Workaround: Under the Python installation path lib\site.py add the following code:

Import Sys

Reload (SYS)

Sys.setdefaultencoding (' GBK ')

The test settings are encoded as Utf-8 or the import is not successfully set to GBK can be imported successfully

The key required to log in is manually generated: you can refer to

Http://blog.sina.com.cn/s/blog_7ae2408501018xsj.html

http://blog.csdn.net/fdipzone/article/details/47327183

Python tool authoring Paramiko implementing SSH remote connection