query a port

[eight02645999]

hi
in python, how do one query a port to see whether it's up or not?
thanks

 

[Dan M]

hi
in python, how do one query a port to see whether it's up or not?
thanks

I'm an absolute beginner, but let's see if I can help. Assuming you want
to check a port on another machine,

import socket
port=25 # Port we want to test
host=machine.to.test # Either IP address or FQDN
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.connect((host, port))
print "We made the connection"
except socket.error:
print "Sorry, that port is not open"
s.close

Does that help?

Dan

 

[eight02645999]

thanks alot!
that's all there is to it..so it's just a simple connect.

 

[Lawrence Oluyede]

hi
in python, how do one query a port to see whether it's up or not?
thanks

Have a look at this:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/286240

 

[Dan M]

thanks alot!
that's all there is to it..so it's just a simple connect.

If all you want to do is check that the given port is open on the given
host, that's it. I tried it on my local box. When connecting to port 25,
it made the connection fine. Trying to connect to port 26 raised a
socket.error.