Python Multiple Telnet Sessions
I need to build a script to get the telnet output of as many hosts as possible and save them to a separate file for each host. The script should run as a daemon. For the moment i
Solution 1:
I believe the following should do what your require, I took your original code and made it into a type of thread:
import threading
import telnetlib
import datetime
import sys
# Global Variable Declarations
TIMEOUT = 30
USER = "Noel"
PROMPT = "Noel"classlistener(threading.Thread):
def__init__(self, filename, ip):
# Have to make a call to the super classes' __init__ methodsuper(listener, self).__init__()
self.f = open(filename,"a")
try:
self.tn = telnetlib.Telnet(ip, 23, TIMEOUT)
except:
print"Bad Connection"
sys.exit(0)
defrun(self):
# login
e = self.tn.read_until("Login: ")
self.tn.write(USER+"\n")
# and password
e = self.tn.read_until("Password: ")
self.tn.write(PASSWORD+"\n")
whileTrue:
e = self.tn.read_until(PROMPT, TIMEOUT)
if e isnot"":
self.f.write(datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S"))
self.f.write(e.strip())
self.f.flush()
# avoid session timeout
self.tn.write("\n")
if __name__ == "__main__":
# Things to listen to is a dictionary of hosts and files to output# to, to add more things to listen to just add an extra entry into# the things_to_listen_to in the format: host : outputfile
things_to_listen_to = {"localhost" :"localhost_output.txt"}
# Thread holder is going to hold all the threads we are going to start
thread_holder = []
for host, file in things_to_listen_to.iteritems():
thread_holder.append(listener(file, host))
for thread in thread_holder:
thread.run()
Hope this helps, if you have any problem update your question or leave a comment.
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