server-inventory.py

#!/usr/bin/env python
from __future__ import print_function
import sys
import paramiko
from netaddr import IPNetwork
from multiprocessing.dummy import Pool as ThreadPool


def connect(ip):
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    # print("Testing",ip)
    for password in passwords:
        try:
            ssh.connect(ip, username='root', password=password,
                        allow_agent=False, look_for_keys=False, timeout=5)
            stdin, stdout, stderr = ssh.exec_command("uname -n")
            results[ip] = {"hostname": "".join(stdout.readlines()).strip(),
                           "password": password}
            return
        except paramiko.ssh_exception.AuthenticationException:
            pass
        except Exception, e:
            results[ip] = {"error": e}
            return
    results[ip] = {"error": "cannot login"}


def usage():
    print("""Usage: %s <passwords> <ip>
    <passwords>	a password or a comma separated password list
    <ip>	an ip address or a network in cidr notation
Examples:
    %s password 192.168.1.1
    %s password,secondpassword 172.16.1.0/25 """
          % (sys.argv[0], sys.argv[0], sys.argv[0]))


def main():
    global ips
    if len(ips) > 1:  # get rid of network and broadcast addresses
        ips = ips[1:-1]
    print ("Testing", sys.argv[2])
    pool = ThreadPool(24)
    pool.map(connect, ips)
    pool.close()
    pool.join()
    for ip in results:
        print(ip, results[ip])

if __name__ == "__main__":
    try:
        passwords = sys.argv[1].split(",")
        ips = [str(i) for i in IPNetwork(sys.argv[2])]
    except Exception, e:
        usage()
        sys.exit(-1)
    results = {}
    main()