python paramiko使用

Mei笑D小妞

　　http://www.lag.net/paramiko/
　　Working with paramiko
　　SSHClient is the main>server[/url] connections. The above code creates a new SSHClient object, and then calls ”connect()” to connect us to the local SSH server.
　　Here’s a simple example:
1import paramiko2ssh = paramiko.SSHClient()　　Another way is to use an SSH key:
1import paramiko2import os3privatekeyfile = os.path.expanduser('~/.ssh/id_rsa')4mykey = paramiko.RSAKey.from_private_key_file(privatekeyfile)5ssh.connect('192.168.1.2', username = 'vinod', pkey = mykey)　　注意:（这里的key，用的是RSA的key，linux下我们在用ssh-keygen -t rsa来指定它，windows下需要原始pem文件格式才可以在这里用，否则将会报无法识别的RSA KEY。类似如下
　　-----BEGIN RSA PRIVATE KEY-----
　　MIIEogIBAAKCAQEAlL0Zti0UgsdpmOK1yA6WaIxrqOiWD3lz/8DBfWydI3YcBpJSv//vvH4KuduU
　　0Wic+lLwe9Yu7axsOCmWjIfmh35Rdj0+LNkhHtfybRGrRpZrEQ2wHrBUgMumLFVPIHEsv2zMbBkd
　　r2atRd4by+BS/4kBn1NaElTW8Tw5FlVUsk43dmh4q4wczMHcghsRxFXLj78LRew37iXLYfHBEKDA
　　n/F71rKuuTiPXLDGaCwq5o8tUa51p/TKRpm5caBI25i7pmLQUo7IY1vWShSdaif7Jq61jEU3EkJq
　　Jj8u9W7iYAYBPq/xw8tKE6i9EzD57ug7JDElulI2rphdIkuT9zj//wIDAQABAoIBACBGbGbgn1vF
　　g79+Km3v5GlpVw8+8RkIhMhRfmsF/48rWOeAJt6s3cusGg28fS13ouCa0L4+es5uJMmHFLkH4Fk0
　　at7aaTx4HTzBJUTPmbfmefMoYjg2kQ+loThrhpEGnewn4q/uP0fJYv4PNT7nPXtfsm9tOdVSfZW5
　　OLYE7C0IgQv0QLe7SkR6Vkz3Qi2gbmIaMu82pP5ugk1NA4OKIrkPJbzOEtkf3d8iblrU0baeYa6I
　　FWM42ChOzoITkN1jYJvudGjERa3/zRb80OEF6evz9SKHOxjy9jzgubdwQT9Crl3Zf90qv/ZGC1G3
　　6EmBy51xFMVEXAELd/6o8j6ENEkCgYEA0g5DGbAodqbLTp1Qf7FtE2t5WCYSzzwVNbQimLV1vOUG
　　tY3hVLywIpA1Kujf1dNOmTJVUuiBPPlcU/YjHMT9h33wRDc0oXmqx2++MF0aQtRy6U4iFRQJWs+v
　　d8J1eQ8jgEhQNZLWrqK6zue0jW6YFO2Wlz/GCOACbkp40FJysHUCgYEAtUV81BUTy07DAHfV+yIJ
　　kms5UGDle/lOTHzyhBmc2gRdoMm/jeGgL+ZGC0OespXaDewn8F/AP+2m+pLDfMEKYZ/VIrjICx0T
　　0BpxW9OPdUkuVMH5VwW6fNgsVh0jjwUZfLj0gUvSHSjsUUpomqG487uRkeklkLNANXqTi2YDYCMC
　　gYAC1IRc7T2uU5L7rSzve4F/uHv7DxBD0Ihsn8+zhQZgFCnh+lZl4ODypkTBHkAdzmoJsF7r7gwH
　　uUhgLTnN4m2UDMNW9/NylYQSidPjLO30po4hzJay+AEkQxYXI/yXM/gDe3XxMthHpBOmRALvwOS1
　　q3nS8d4GMpZ1y/USwXmgHQKBgDJAaTKCBVK/Kt/eWLud2/lzMBhQRE3x9vrNSI3Ga+0keLAyPaAf
　　hEDDHXfR7xSi5igl54yDftA6GagtN3RGL5KQtI1DnHE4Rl3Sdsp2A7cH6ogknfK569DgPKpCubDU
　　QRSKUX3mfwEGbzy52/XCD3vB68D/WSKcDpjEulJSnWzxAoGAB7oGwMMnwy2GSxAuPiiXOl4n5hwa
　　vJ15qCmKTSYx7eWCu1zCE3NYW6Pvohz+YRJqilAOt45uNK65g6w/ZbX/oh2lujDd3VU4INU4fKCS
　　FCkypPZFAxnG70tuo/US/4W34zOAxoALrIC0uOHyXD2P1yYcQgIkNp7VmoZ7FK/7LMs=
　　-----END RSA PRIVATE KEY-----
　　而且如果你的RSA Key有密码的话，你还需要
　　mykey = paramiko.RSAKey.from_private_key_file(privatekeyfile,password='12345678')
　　不过，我们可以用publickey来登录的。
　　解法如下:
　　serverHost = "127.0.0.1"
　　serverPort = 22
　　userName = "root"
　　keyFile = "~/.ssh/badboy"
　　known_host = "~/.ssh/known_hosts"
　　channel = paramiko.SSHClient();
　　channel.load_system_host_keys( known_host )
　　channel.connect( serverHost, serverPort,username = userName, key_filename = keyFile )
　　）
　　
　　Running Simple Commands
　　Lets run some simple commands on a remote machine.
1import paramiko2ssh = paramiko.SSHClient()3ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())<=这样的话，就会报paramiko.SSHException: Unknown server4ssh.connect('beastie', username='vinod', password='secret')5stdin, stdout, stderr = ssh.exec_command('df -h')6print stdout.readlines()7ssh.close()　　“paramiko.AutoAddPolicy()” which will auto-accept unknown keys.
　　Using sudo in running commands:
01import paramiko　　02
03cmd   = &quot;sudo /etc/rc.d/apache2 restart&quot;　　04
05ssh   = paramiko.SSHClient()06ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())07ssh.connect('beastie', username='vinod', password='secret')08stdin, stdout, stderr = ssh.exec_command(cmd)09stdin.write('secret\n')10stdin.flush()11print stdout.readlines()12ssh.close()　　在这个例子中，无法运行，也无法解释，希望志同道合的朋友能给个解释!
　　Secure File Transfer Using SFTPClient
　　SFTPClient is used to open an sftp session across an open ssh Transport and do remote file operations.
　　An SSH Transport attaches to a stream (usually a socket), negotiates an encrypted session, authenticates, and then creates stream tunnels, called[url=]Channel[/url]s, across the session. Multiple channels can be multiplexed across a single session (and often are, in the case of port forwardings).
　　以下是用密码认证功能登录的
　　#!/usr/bin/env python
　　import paramiko
　　socks=('127.0.0.1',22)
　　testssh=paramiko.Transport(socks)
　　testssh.connect(username='root',password='000000')
　　sftptest=paramiko.SFTPClient.from_transport(testssh)
　　remotepath=&quot;/tmp/a.log&quot;
　　localpath=&quot;/tmp/c.log&quot;
　　sftptest.put(remotepath,localpath)
　　sftptest.close()
　　testssh.close()
　　以下是用DSA认证登录的(PubkeyAuthentication)
　　#!/usr/bin/env python
　　import paramiko
　　serverHost = &quot;192.168.1.172&quot;
　　serverPort = 22
　　userName = &quot;root&quot;
　　keyFile = &quot;/root/.ssh/zhuzhengjun&quot;
　　known_host = &quot;/root/.ssh/known_hosts&quot;
　　channel = paramiko.SSHClient();
　　#host_keys = channel.load_system_host_keys(known_host)
　　channel.set_missing_host_key_policy(paramiko.AutoAddPolicy())
　　channel.connect(serverHost, serverPort,username=userName, key_filename=keyFile )
　　testssh=paramiko.Transport((serverHost,serverPort))
　　mykey = paramiko.DSSKey.from_private_key_file(keyFile,password='xyxyxy')
　　testssh.connect(username=userName,pkey=mykey)
　　sftptest=paramiko.SFTPClient.from_transport(testssh)
　　filepath='/tmp/e.log'
　　localpath='/tmp/a.log'
　　sftptest.put(localpath,filepath)
　　sftptest.close()
　　testssh.close()
　　以下是用RSA Key认证登录的
　　#!/usr/bin/evn python
　　import os
　　import paramiko
　　host='127.0.0.1'
　　port=22
　　testssh=paramiko.Transport((host,port))
　　privatekeyfile = os.path.expanduser('~/.ssh/badboy')
　　mykey = paramiko.RSAKey.from_private_key_file(privatekeyfile,password='000000')
　　username = 'root'
　　testssh.connect(username=username, pkey=mykey)
　　sftptest=paramiko.SFTPClient.from_transport(testssh)
　　filepath='/tmp/e.log'
　　localpath='/tmp/a.log'
　　sftptest.put(localpath,filepath)
　　sftptest.close()
　　testssh.close()