Howdy,
Below is a script that I'm using to try and count the number of HTTP
servers within a company's private network. There are 65,536 possible
hosts that may have HTTP servers on them. Any way, I wrote this script
at first w/o threads. It works, but it takes days to run as it probes
one IP at a time... so I thought I'd try to make it threaded so it could
test several dozen IPs at once.
I'm no expert on threading, far from it. Could someone show me how I can
make this work correctly? I want to probe 64 unique IP address for HTTP
servers simultaneously, not the same IP addy 64 times (as I'm doing
now). Any tips would be much appreciated.
Bart
import urllib2, socket, threading, time
class trivialthread(t hreading.Thread ):
def run(self):
socket.setdefau lttimeout(1)
hosts = []
networks = []
# Add the network 192.168.0 possibility.
networks.append ("192.168.0. ")
n = 0
while n < 255:
n = n + 1
# Generate and add networks 192.168.1-255 to the list of networks.
networks.append ("192.168.%s ." %(n))
for network in networks:
h = 0
# Add the n.n.n.0 host possibility
hosts.append(ne twork+str(h))
while h < 255:
h = h + 1
# Add hosts 1 - 255 to each network.
hosts.append(ne twork+str(h))
websites = file('websites. txt', 'w')
for ip in hosts:
try:
f = urllib2.urlopen ("http://%s" %ip)
f.read()
f.close()
print>> websites, ip
except urllib2.URLErro r:
print ip
except socket.timeout:
print ip, "Timed Out............ ......."
except socket.sslerror :
print ip, "SSL Error.......... ........."
websites.close( )
if __name__ == '__main__':
threads = []
for x in range(64):
thread = trivialthread()
threads.append( thread)
for thread in threads:
thread.start()
while threading.activ eCount() > 0:
print str(threading.a ctiveCount()), "threads running incl. main"
time.sleep(1)
