<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
If I were you, I'd drop the whole class C like 192.168.0.0/24<br>
Should drop the traffic no problem, They can't have to many addresses.
Even if you drop a handfull of class C's<br>
<br>
On 1/21/2010 3:06 PM, Scott Adametz wrote:
<blockquote
cite="mid:3AE96AC47F21754ABC02F141CBFF2B830107681D@fegplmsexmb06.ffe.foxeg.com"
type="cite">
<meta http-equiv="Content-Type"
content="text/html; charset=ISO-8859-1">
<meta name="Generator" content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Vrinda;
panose-1:1 1 6 0 1 1 1 1 1 1;}
@font-face
{font-family:Vrinda;
panose-1:1 1 6 0 1 1 1 1 1 1;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="Section1">
<p class="MsoNormal">All, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Due to an inordinate amount of Chinese based
traffic from only
a handful of IP addresses (over 145 TB transferred to just <b>12</b>
IP
addresses in only 15 days since we started hosting the mirror) we are
forced to
cease our participation in the CentOS mirror project. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In our research before deciding to offer our
support we were
told to expect a sustained 3-5 Mbit/s of mirror traffic. In reality,
and
from only a handful of IPs, we regularly push over 200Mbit/s on our
300Mbit/s
line. Each of the abusive IPs downloads the same DVD iso files over
and
over thousands of times. We have tried blocking the abusive IPs only
to
see another IP with a sequentially increased last octet take its
place.
Whether this is an outright attack or just an unfortunate coincidence
matters
not. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regretfully, I must ask that we be delisted from
the mirror
list asap. Once our links are down, we will shut down the server. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">At some point in the future we may decide to
participate
again but for now, we cannot justify the inordinate bandwidth use. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Verdana","sans-serif";">Scott
Adametz</span></b><span style="font-family: "Verdana","sans-serif";"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span
style="font-size: 7.5pt; font-family: "Verdana","sans-serif";">Systems
Engineer</span></i><span style="font-family: "Verdana","sans-serif";"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 7.5pt; font-family: "Verdana","sans-serif";">Big
Ten Network</span><span style="font-family: "Verdana","sans-serif";"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 7.5pt; font-family: "Verdana","sans-serif";">600
W Chicago Ave.</span><span style="font-family: "Verdana","sans-serif";"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 7.5pt; font-family: "Verdana","sans-serif";">Chicago,
IL
60654</span><span style="font-family: "Verdana","sans-serif";"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 7.5pt; font-family: "Verdana","sans-serif";"><a
moz-do-not-send="true" href="mailto:scott.adametz@bigtennetwork.com"><span
style="color: blue;">scott.adametz@bigtennetwork.com</span></a></span><span
style="font-family: "Verdana","sans-serif";"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 7.5pt; font-family: "Verdana","sans-serif";">O:312.665.0787
C:708.214.4232<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family: "Verdana","sans-serif";"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
CentOS-mirror mailing list
<a class="moz-txt-link-abbreviated" href="mailto:CentOS-mirror@centos.org">CentOS-mirror@centos.org</a>
<a class="moz-txt-link-freetext" href="http://lists.centos.org/mailman/listinfo/centos-mirror">http://lists.centos.org/mailman/listinfo/centos-mirror</a>
</pre>
</blockquote>
</body>
</html>