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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Folks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I was wondering if somebody could help me with an issue. I’m a newbie here, just installing Kamailio sip server.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’ve enabled TLS, and am trying create a SIP Trunk to external SIP Service which is TLS enabled port 5061.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’ve configured the following in tls.cfg:<o:p></o:p></span></p>
<p class="p1"><span class="s1">[server:default]</span><o:p></o:p></p>
<p class="p2"><span class="s1">method = TLSv1.2+</span><o:p></o:p></p>
<p class="p2"><span class="s1">verify_certificate = yes</span><o:p></o:p></p>
<p class="p2"><span class="s1">require_certificate = yes</span><o:p></o:p></p>
<p class="p2"><span class="s1">private_key = /etc/kamailio/certs/sbc-private.pem</span><o:p></o:p></p>
<p class="p2"><span class="s1">certificate = /etc/kamailio/certs/godaddy.pem</span><o:p></o:p></p>
<p class="p2"><span class="s1">ca_list = /etc/kamailio/certs/calist.pem</span><span class="apple-converted-space"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">In the section above – ca_list = calist.pem contains all the CA’s and Subordinates of the destination server.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Private_key and certificate are of my own server (public godaddy<span style="color:#70AD47">
</span>signed) <span style="color:#70AD47"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="p1"><span class="s1">[client:default]</span><o:p></o:p></p>
<p class="p2"><span class="s1">method = TLSv1.2+</span><o:p></o:p></p>
<p class="p2"><span class="s1">verify_certificate = yes</span><o:p></o:p></p>
<p class="p2"><span class="s1">require_certificate = yes</span><o:p></o:p></p>
<p class="p2"><span class="s1">private_key = /etc/kamailio/certs/sbc-private.pem</span><o:p></o:p></p>
<p class="p2"><span class="s1">certificate = /etc/kamailio/certs/godaddy.pem</span><o:p></o:p></p>
<p class="p2"><span class="s1">ca_list = /etc/kamailio/certs/godaddyca.pem</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">In the section above the ca_list is godaddy’s ca and subordinate.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">In the wireshark I can see that I’m sending out SIP OPTIONS PING (I’m using dispatcher module).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Then the server replies with tls SERVER HELLO which includes it’s certificate<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">But for some reason we are rejecting it:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Alert (level: fatal, Description: Unknown CA)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">How should I set this up to make sure the remote server CA’s are verified?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you, <o:p></o:p></span></p>
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