What port does Hopster run on


I run a squid proxy server at work, and the students have found Hopster and now run msn and other various apps. Does anyone know how hopster can be blocked at the firewall?


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Best thing I can determine is to block the hopster server subnets:
  block everything to -
kurtc0107Author Commented:
And within squid how is this done?
you should create a squid acl:

acl hopster dst 212.126.66/

and then deny access to it, by inserting the line:

http_access deny hopster

in the appropriate place in your config file (before the permit staements).

see the squid doc (the config file is also heavily documented) for more info on using access lists.

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kurtc0107Author Commented:
thanks td_miles

ill give that a shot.
kurtc0107Author Commented:
No luck

I have other acl's in place that work, but hopster just keeps on running.

I have also tried the suggestion on:
http://www.derkeiler.com/Mailing-Lists/securityfocus/focus-linux/2004-08/0003.html and no luck.

Hhmm. Any other suggestions?
Looking at my hasty typing, I left a ZERO off the end of the network I gave you above, it should be

That link you have posted above gave a different IP address that you needed to block, have you blocked that as well ?

You may have to monitor the traffic and determine what other IP addresses you may need to block.
kurtc0107Author Commented:
yeah I added the 0, could see that was a mistake

Yep got that blocked as well
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