1). Linux系統首先要開啟SSH服務：service ssh status
如果沒安裝的話，則要：apt-get install openssh-server
service ssh restart
2). pip install paramiko
example 1:
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('192.168.80.139', username = 'allen', password = 'allen', timeout = 300)
cmd = 'cd'
stdin, stdout, stderr = ssh.exec_command(cmd)
cmd = 'ls python'
stdin, stdout, stderr = ssh.exec_command(cmd)
print stdout.read()
#for std in stdout.readlines():
# print std
ssh.close()
如果運行此腳本後“Multibackend cannot be initialized with no backends. If you are seeing this error when trying to use default_backend() please try uninstalling and reinstalling cryptography." 這個錯誤，那麼就：
pip uninstall paramiko
pip install paramiko==1.17參考：http://stackoverflow.com/questions/37135521/paramiko-transport-throws-runtime-valueerror-while-connecting-to-remote-server-u
腳本二在遠程服務器上執行相應命令
import sys
import paramiko
hostname = sys.argv[1]
command = " ".join(sys.argv[2:])
port=22
username="allen"
password="allen"
if __name__=="__main__":
s=paramiko.SSHClient()
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
s.connect(hostname,port,username,password)
stdin,stdout,sterr=s.exec_command(command)
print stdout.read()
s.close()
腳本三:管理多台服務器：批量查詢ip列表中對應服務器的磁盤使用情況
import paramiko
port = 22
username = "allen"
file=open("ip.list")
for line in file:
hostname = str(line.split("\t")[1])
password = str(line.split("\t")[4]).strip()
print "##########################",hostname,"########################"
s = paramiko.SSHClient()
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
s.connect(hostname, port, username, password)
stdin,stdout,sterr = s.exec_command("df -Th")
print stdout.read()
s.close()
file.close()
ip.list內容：
dx 192.168.0.1 22 root loveyou
腳本四:類似於腳本二,在所有遠程服務器上執行相應命令
import paramiko
import sys
port=22
username="root"
command = " ".join(sys.argv[1:])
file=open("ip.list")
for line in file:
hostname=str(line.split("\t")[1])
password=str(line.split("\t")[4]).strip()
print "##################",hostname,"######################"
s=paramiko.SSHClient()
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
s.connect(hostname,port,username,password)
stdin,stdout,sterr=s.exec_command(command)
print stdout.read()
s.close()
file.close()
下面是通過ssh的dsa或rsa公鑰驗證批量登錄服務器執行命令:
import paramiko
import sys, os
port = 22
username = "root"
key_file = "~/.ssh/authorized_keys"
know_host = "/home/larry/.ssh/known_hosts"
command = " ".join(sys.argv[1:]) ####獲取命令行參數
file = open("ip.list")
for line in file:
hostname = str(line.split(" ")[1]) ####截取ip字段
print "#####################################",hostname,"###############################################"
s = paramiko.SSHClient()
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
s.load_system_host_keys(know_host)
s.connect(hostname, port, username, key_file)
stdin, stdout, sterr = s.exec_command(command)
print stdout.read().strip()
s.close()
file.close()
零基礎如何入門Python http://www.linuxidc.com/Linux/2016-10/136485.htm
Ubuntu 14.04安裝Python 3.3.5 http://www.linuxidc.com/Linux/2014-05/101481.htm
CentOS上源碼安裝Python3.4 http://www.linuxidc.com/Linux/2015-01/111870.htm
Ubuntu 14.04下Python數據處理環境搭建 http://www.linuxidc.com/Linux/2017-01/139568.htm
《Python核心編程 第二版》.(Wesley J. Chun ).[高清PDF中文版] http://www.linuxidc.com/Linux/2013-06/85425.htm
《Python開發技術詳解》.( 周偉,宗傑).[高清PDF掃描版+隨書視頻+代碼] http://www.linuxidc.com/Linux/2013-11/92693.htm
在CentOS 6.5上安裝Python2.7 http://www.linuxidc.com/Linux/2016-10/136206.htm
在Ubuntu下用Python搭建桌面算法交易研究環境 http://www.linuxidc.com/Linux/2013-11/92534.htm
