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<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
"Times New Roman";mso-bidi-theme-font:minor-bidi;color:#1F497D;mso-themecolor:
dark2">No!! I don’t mean interface ports. Bittorrent uses a mechanism that can
use any TCP or UDP ports. It can even use the most common port 80. So it can
be blocked only on the service(application) level. Many modern firewalls can do
that nowadays and even shape ur traffic hence allocating a fixed BW for this or
any other services. Or even open the service according to bandwidth consumption.</span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
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<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
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"Times New Roman";mso-bidi-theme-font:minor-bidi;color:#1F497D;mso-themecolor:
dark2">Regards,</span></div>
</div><div> </div><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Seun Ojedeji <seun.ojedeji@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> NJIE Paul EFOME <efomenjie@camtel.cm> <br><b><span style="font-weight: bold;">Cc:</span></b> "afnog@afnog.org" <afnog@afnog.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, February 27, 2013 11:38 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [afnog] Use of BitTorrents in Academic Environments<br> </font> </div> <br>
<div id="yiv625259231"><div class="yiv625259231gmail_quote">On Wed, Feb 27, 2013 at 10:34 AM, NJIE Paul EFOME <span dir="ltr"><<a rel="nofollow" ymailto="mailto:efomenjie@camtel.cm" target="_blank" href="mailto:efomenjie@camtel.cm">efomenjie@camtel.cm</a>></span> wrote:<br><blockquote class="yiv625259231gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div style="font-size:12pt;font-family:times new roman, new york, times, serif;">You can not use ports to block Bittorent.</div></div></blockquote><div> </div><div>Using TCP/UDP port numbers(ofcourse you don't mean interface ports ;) at times can be dicey as those ports can be easily changed considering the more sophisticated torrent clients we have around. Also blocking range of ports may actually block off some important sites who necessary are not torrents....at least i know it can affect some linux update sources<br>
</div><blockquote class="yiv625259231gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div style="font-size:12pt;font-family:times new roman, new york, times, serif;"> You'll need an application layer firewall like Palo-Alto to achieve this.<br>
</div></div></blockquote><div><br>On a personal note i usually don't worry much about filtering torrents, i only worry about ensuring each client gets a fair share of the bandwidth. <br><br>Cheers!<br></div><blockquote class="yiv625259231gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div style="font-size:12pt;font-family:times new roman, new york, times, serif;">Regards, <br><div>----------------------------<br><span style="font-family:lucida console, sans-serif;"><span style="background-color:rgb(230,230,230);"><span style="font-weight:bold;"><span style="font-style:italic;"><span style="color:rgb(0,64,127);">NJIE Paul EFOME</span></span></span></span><br>
<span style="color:rgb(0,64,127);">DSIR (IT & IP Manager) - Camtel<br>B.P. 1571 Yaoundé - Cameroon<br>Tel/Fax: <a href="" rel="nofollow">+237-2222-5235</a><br>CDMA: <a href="" rel="nofollow">+237-2275-8229</a></span></span><br>
</div><div><br><blockquote style="border-left:2px solid rgb(16,16,255);margin-left:5px;margin-top:5px;padding-left:5px;"> <div style="font-family:times new roman, new york, times, serif;font-size:12pt;"> <div style="font-family:times new roman, new york, times, serif;font-size:12pt;">
<div dir="ltr"> <font face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Scott Weeks <<a rel="nofollow" ymailto="mailto:surfer@mauigateway.com" target="_blank" href="mailto:surfer@mauigateway.com">surfer@mauigateway.com</a>><br> <b><span style="font-weight:bold;">To:</span></b> <a rel="nofollow" ymailto="mailto:afnog@afnog.org" target="_blank" href="mailto:afnog@afnog.org">afnog@afnog.org</a> <br>
<b><span style="font-weight:bold;">Sent:</span></b> Tuesday, February 26, 2013 7:18 PM<br> <b><span style="font-weight:bold;">Subject:</span></b> Re: [afnog] Use of BitTorrents in Academic Environments<br> </font> </div><div>
<div class="yiv625259231h5"> <br>
<br>On 26/02/13 14:21, <a rel="nofollow" ymailto="mailto:amon.kasonda@unza.zm" target="_blank" href="mailto:amon.kasonda@unza.zm">amon.kasonda@unza.zm</a> wrote:<br><br>> I am seeking advice from IT experts in academic environments on<br>> how they have handled the issue of BitTorrents on their network.<br>
> As a university we have blocked this service because of the effect<br>> it has on internet bandwidth and issues pertaining to security. This<br>> is an inherent default configuration policy I have found in the<br>
> university. However, our users strongly feel the service must be<br>> restored to enhance their learning and internet experience. Your<br>> independent views in this regard are welcome.<br>---------------------------------------------------<br>
<br><br>Perhaps you can use QoS to prioritize important traffic<br>and let torrent traffic take what's left of your internet<br>circuit. This doesn't do anything about the security<br>aspects you
mention, but it controls your bandwidth in<br>a manner that allows everyone to get what they need and <br>then allows the rest of the bandwidth to go to the torrent <br>traffic.<br><br>scott<br><br><br><br><br><br><br><br>
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<i><span style="color:rgb(0,102,0);">Seun Ojedeji,<br style="color:rgb(0,102,0);"></span><span style="color:rgb(0,102,0);">Federal University Oye-Ekiti<br style="color:rgb(0,102,0);"></span><span style="color:rgb(0,102,0);">web: </span>http://www.fuoye.edu.ng<br>
<span style="color:rgb(0,102,0);"></span><span style="color:rgb(0,102,0);">Mobile: <a href="" rel="nofollow">+2348035233535</a></span><span style="color:rgb(0,102,0);"></span><br></i><i><span style="color:rgb(0,102,0);">alt email:<a rel="nofollow" target="_blank" href="http://goog_1872880453/"> </a><a rel="nofollow" ymailto="mailto:seun.ojedeji@fuoye.edu.ng" target="_blank" href="mailto:seun.ojedeji@fuoye.edu.ng">seun.ojedeji@fuoye.edu.ng</a></span></i><br>
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