<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">You can handle this w/ freeswitch with the wrong_call_state messages. No need to use a proxy to catch these.<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Mar 1, 2017, at 8:59 AM, Sergey Safarov <<a href="mailto:s.safarov@gmail.com" class="">s.safarov@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">In this case is required to route register messages via kamailio and filter or log bad requests.<br class="">As criteria may be used register domain equal IP address.<br class="">And high rate of register messages.<br class=""><br class=""></div><br class=""><div class="gmail_quote"><div dir="ltr" class="">ср, 1 мар. 2017 г. в 15:53, David Villasmil <<a href="mailto:david.villasmil.work@gmail.com" class="">david.villasmil.work@gmail.com</a>>:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br class="gmail_msg"><br class="gmail_msg">Thanks for your reply. I already use fail2ban to block IPs that FAIL to register, this means there's a response to a challenge with a bad password hash. <br class="gmail_msg">But in my case there's no response.<br class="gmail_msg"><br class="gmail_msg">There's an INVITE and fs responds with 407, but the attacker never answers that challenge, so there's no log of a failure that can be used to block the ip.<br class="gmail_msg"><br class="gmail_msg">I don't see a feature where this can be done specifically. Can you please explain? <br class="gmail_msg"><br class="gmail_msg">Thanks a lot.<br class="gmail_msg"><br class="gmail_msg">David<br class="gmail_msg"><div class="gmail_quote gmail_msg"><div dir="ltr" class="gmail_msg">On Wed, Mar 1, 2017 at 5:20 AM Sergey Safarov <<a href="mailto:s.safarov@gmail.com" class="gmail_msg" target="_blank">s.safarov@gmail.com</a>> wrote:<br class="gmail_msg"></div><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr" class="gmail_msg">This may be done using fail2ban and mod_fail2ban</p>
<br class="gmail_msg"><div class="gmail_quote gmail_msg"><div dir="ltr" class="gmail_msg">ср, 1 марта 2017, 5:19 David Villasmil <<a href="mailto:david.villasmil.work@gmail.com" class="gmail_msg" target="_blank">david.villasmil.work@gmail.com</a>>:<br class="gmail_msg"></div><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"></blockquote></div><div class="gmail_quote gmail_msg"><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg">Hello all,<div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Anyone knows of a way to block unanswered challenges?</div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"><br clear="all" class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg m_55920436330250851m_7971403703722185890m_-5591046145937695822gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class="gmail_msg"><div class="gmail_msg">Regards,</div><div class="gmail_msg"><br class="gmail_msg"></div>David Villasmil<div class="gmail_msg">email: <a href="mailto:david.villasmil.work@gmail.com" class="gmail_msg" target="_blank">david.villasmil.work@gmail.com</a></div><div class="gmail_msg">phone: <a href="tel:+34%20669%2044%2083%2037" value="+34669448337" class="gmail_msg" target="_blank">+34669448337</a></div></div></div></div>
</div></div><div hspace="streak-pt-mark" style="max-height:1px" class="gmail_msg"><img style="width:0px;max-height:0px;overflow:hidden" src="https://mailfoogae.appspot.com/t?sender=aZGF2aWQudmlsbGFzbWlsLndvcmtAZ21haWwuY29t&type=zerocontent&guid=7f5ca7ef-7624-4a2f-a7c2-cefac2f34569" class="gmail_msg"><font color="#ffffff" size="1" class="gmail_msg">ᐧ</font></div></blockquote></div><div class="gmail_quote gmail_msg"><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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