pythonsshparamikojuniper

Python Paramiko SSH script that use specific IP source

I have currently written this script which works fine, but has a limitation, I can't decide which source IP can open SSH with the server. For routers with multiple interfaces it would be extremely useful. I read that sock or channel could be used, but I don't know how to implement them and I can't find examples.

Thanks!

from junos import Junos_Context
import paramiko
from datetime import datetime
import jcs

user = Junos_Context['user-context']['login-name']
hostname = Junos_Context['hostname']
now = datetime.now()
day = now.strftime('%Y%m%d')
hour = now.strftime('%H%M%S')

#Sets up the ssh session and logs in as login "simone" with password "simone"
#to host '192.168.2.2' 

host = '192.168.2.2'
login = 'simone'
passw = 'simone'

try:
   ssh = paramiko.SSHClient()
   ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
   ssh.connect(host, username=login, password=passw, look_for_keys=False, allow_agent=False)
  chan = ssh.invoke_shell()
except:
   print "Login to %s failed" % (host,)
   chan = False

if chan:
   sftp = ssh.open_sftp()
   sftp.put('/config/juniper.conf.gz',
  '/simone/backups/%s_%s_%s_%s_juniper.conf.gz' % (user,hostname,day,hour))

   sftp.close()
   ssh.close()

   print "All it's OK %s ! " % (user,)

else:
   print "Sorry, there is no connection to the host %s" % (host,)
Solution

  • Ok, now it works! Many thanks! My script finaly is:

    sok = socket.socket()
sok.bind((local_address, 0))
sok.connect((host, 22))

ssh.connect(host, username=login, password=passw, look_for_keys=False, allow_agent=False, sock=sok)