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227 posts

Master Geek


#90293 19-Sep-2011 10:49
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I got you with the subject header didn't I?  Smile

This isnt so much a post asking for help, but a post to potentially help others out there.

I was looking for a way to stop bittorrent data flowing out of my network.  I was looking at potentially buying a Juniper SRX - I currently use pfsense.
As luck would have it, pfsense has gone to a 2.0 release  in the weekend which fixes support for such an application Smile

Have put the rule in and now feel a little more safe Laughing

What are others out there doing?

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1285 posts

Uber Geek


  #522924 19-Sep-2011 10:54
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I give the torrent guys about 3 days to bypass these rules. It's a game of cat and mouse which can never be won




Most problems are the result of previous solutions...

All comment's I make are my own personal opinion and do not in any way, shape or form reflect the views of current or former employers unless specifically stated 

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Uber Geek

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  #522926 19-Sep-2011 10:59
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Hows skype working though? We use zentyal (software firewall) which is an upgrade on the old ebox platform. We are blocking torrents without a problem but it also kills off skype as it uses p2p ports :/, which is turning into a bit of a hassle as its installed at a backpackers.

 
 
 
 




227 posts

Master Geek


  #522932 19-Sep-2011 11:05
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Good call RE: Skype.  I didn't test that (not that I use it much).

622 posts

Ultimate Geek


  #523029 19-Sep-2011 14:06
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your never block torrents... the client software is so flexible now days and uses not just tcp
but udp to make connections you basivally would have to block all ports and have nothing working

its easy for a p2p to find a open port and config the software to bypass firewall hardware or software

lets face it telecom tried to control it with their hardware filters with big time plan
and have to give up in defeat so i doubt any business or home can control it

if you think you have your in a dreamland

its easy to send traffic over port 80 1720 ftp and any port

use encryption tech and vpn and even easier



227 posts

Master Geek


  #523055 19-Sep-2011 15:05
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Just to clarify, my objective isn't to spend countless hours/days/months trying to stop people using file sharing protocols, but to make it enough of a pain in the a$$ that they will give up or find someone else's network to use - as long as it isn't mine, I don't care Tongue Out

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  #523078 19-Sep-2011 15:35
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BigGuy: Just to clarify, my objective isn't to spend countless hours/days/months trying to stop people using file sharing protocols, but to make it enough of a pain in the a$$ that they will give up or find someone else's network to use - as long as it isn't mine, I don't care Tongue Out


Problem is you can't really do a lot to even make it hard - the trackerless UDP protocols will automatically adapt to the network and "just work".

 

622 posts

Ultimate Geek


  #523089 19-Sep-2011 15:46
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theres deep packet inspection now but even theres tools and ways to encrypt so
filtering that on hardware is pointless

but if they use UDP or uTP as its called it can expose the real ip
and normally one disables those features on torrent clients so if they wanted
anon browsing then it might make it hard for them

but more likely it just slow them down e.g. the up and download speeds
since it will find less peers and seeders to connect with

i remember talking to a whiz kid in usa who invented the first cracking pc
it used 4 geforce GPU for number crunching inaffect like having
a portable super computer for maths
for wireless lans where it could crack 200 connections in under 5minutes
theres a lot of bright sparks out there that know more
then the average highly paid net admin

he did say only use psk-2 with a very long
password was the hardest to crack and impossibleto crack
with a good password with bruteforce as it take to long



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