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<div style="direction:ltr">Hi Callum,</div>
<div><br>
</div>
<div style="direction:ltr">Thanks again and understood.</div>
<div><br>
</div>
<div style="direction:ltr">One last question before I crack on with this, what do you do in terms of provisioning client devices for TLS?</div>
<div><br>
</div>
<div style="direction:ltr">Do you deploy with a cert? Just looking at best practices from people who are a little more experienced in it!</div>
<div><br>
</div>
<div style="direction:ltr">Many thanks</div>
<div><br>
</div>
<div style="direction:ltr">Jon </div>
<div><br>
</div>
<div class="acompli_signature">Get <a href="https://aka.ms/o0ukef">Outlook for iOS</a></div>
</div>
</div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Users <users-bounces@lists.opensips.org> on behalf of Callum Guy <callum.guy@x-on.co.uk><br>
<b>Sent:</b> Tuesday, September 12, 2017 2:28:03 PM<br>
<b>To:</b> OpenSIPS users mailling list<br>
<b>Subject:</b> Re: [OpenSIPS-Users] opensips 2.2.5 and TLS configuration</font>
<div> </div>
</div>
<div>
<div dir="ltr">Hi Jon,
<div><br>
</div>
<div>Happy to help but please be careful that my examples aren't contributing to your difficulties.</div>
<div><br>
</div>
<div>You are correct that a working setup on one handset should provide a system which can be used by other handsets however it is important to understand that not all devices support the same protocol levels and ciphers.</div>
<div><br>
</div>
<div>The cipher list you are currently working with (<font size="2" face="monospace">EECDH+AESGCM,EDH+AESGCM,AES256+EECDH,AES256+EDH</font>) is restricting the negotiation process to some very modern ciphers meaning that you will most likely encounter a lack
of support from the various handsets you are testing with. </div>
<div><br>
</div>
<div>The combination of using these strong ciphers over a weak protocol (SSLv23) will result in a vastly shortened list of functional setups! You will probably have better luck with a wide list of ciphers such as "HIGH" - just swap the list out or tag it on
the end. Note that where possible you really shouldn't be using anything less than TLS1.1 if you really care about protecting these calls from decryption.</div>
<div><br>
</div>
<div>As an aside you can review some of the ciphers your system is able to use by running the following commands (note that this is your system, the client device will have its own list):</div>
<div><br>
</div>
<div><font face="monospace">openssl ciphers -v '<span style="font-size:small">EECDH+AESGCM,EDH+AESGCM,</span><span style="font-size:small">AES256+EECDH,AES256+EDH</span>'<br>
</font></div>
<div><font face="monospace">openssl ciphers -v 'HIGH'<br>
</font></div>
<div><br>
</div>
<div>Hope that helps, stay secure!<br>
</div>
<div><br>
</div>
<div>Callum</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Tue, Sep 12, 2017 at 2:14 PM Jonathan Hunter <<a href="mailto:hunterj91@hotmail.com">hunterj91@hotmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<p>Hi Callum,</p>
<p><br>
</p>
<p>Thanks for the reply, really appreciate it!</p>
<p><br>
</p>
<p>I am getting there slowly, I can get a snom handset to register, however struggling with Yealink.</p>
<p><br>
</p>
<p>I assume once the configuration on the Server is correct, this should be sufficient for the majority of handsets if they are configured correctly for TLS?</p>
<p><br>
</p>
<p>I now have the following configuration in place;</p>
<p><br>
</p>
<p></p>
<div>#Global params</div>
<div>modparam("tls_mgm", "dh_params", "/etc/opensips/tls/rootCA/certs/dhparam.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "ec_curve", "secp384r1")</div>
<div>modparam("tls_mgm", "ciphers_list", "EECDH+AESGCM,EDH+AESGCM,AES256+EECDH,AES256+EDH")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "verify_cert", "0") # Switch off during initial testing to rule this out</div>
<div>modparam("tls_mgm", "require_cert", "0") # Switch off during initial testing to rule this out</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "tls_method", "SSLv23")</div>
<div>modparam("tls_mgm", "certificate", "/etc/opensips/tls/rootCA/certs/ssl_certificate.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "private_key", "/etc/opensips/tls/rootCA/certs/sip.net.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "ca_list", "/etc/opensips/tls/rootCA/certs/IntermediateCA.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "ca_dir", "/etc/pki/tls/certs/")</div>
<div>#server domain</div>
<div>modparam("tls_mgm", "server_domain", "sv_dom=91.X.X.X:5061")</div>
<div>modparam("tls_mgm", "dh_params", "sv_dom:/etc/opensips/tls/rootCA/certs/dhparam.pem")</div>
<div>modparam("tls_mgm", "ec_curve", "sv_dom:secp384r1")</div>
<div>modparam("tls_mgm", "ciphers_list", "sv_dom:EECDH+AESGCM,EDH+AESGCM,AES256+EECDH,AES256+EDH")</div>
<div>modparam("tls_mgm", "verify_cert", "sv_dom:0")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "require_cert", "sv_dom:0")</div>
<div>modparam("tls_mgm", "tls_method", "sv_dom:SSLv23")</div>
<div>modparam("tls_mgm", "certificate", "sv_dom:/etc/opensips/tls/rootCA/certs/ssl_certificate.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "private_key", "sv_dom:/etc/opensips/tls/rootCA/certs/sip.net.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "ca_list", "sv_dom:/etc/opensips/tls/rootCA/certs/IntermediateCA.pem")</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>modparam("tls_mgm", "ca_dir", "sv_dom:/etc/pki/tls/certs/")</div>
<br>
<p></p>
Thanks
<div><br>
</div>
<div>Jon<br>
<br>
<div style="color:rgb(0,0,0)">
<hr style="display:inline-block; width:98%">
<div id="m_3606274079679815545divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Users <<a href="mailto:users-bounces@lists.opensips.org" target="_blank">users-bounces@lists.opensips.org</a>> on behalf
of Callum Guy <<a href="mailto:callum.guy@x-on.co.uk" target="_blank">callum.guy@x-on.co.uk</a>><br>
<b>Sent:</b> 11 September 2017 07:58<br>
<b>To:</b> OpenSIPS users mailling list<br>
<b>Subject:</b> Re: [OpenSIPS-Users] opensips 2.2.5 and TLS configuration</font>
<div> </div>
</div>
<div></div>
</div>
</div>
</div>
</div>
<div dir="ltr">
<div id="m_3606274079679815545divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<div>
<div style="color:rgb(0,0,0)">
<div>
<div dir="ltr"><span id="m_3606274079679815545m_-8969509322233141953inbox-inbox-docs-internal-guid-a833c2f7-6fe8-e46b-ca0f-e972a886039e" style="font-size:12px; white-space:pre-wrap">
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><font face="Consolas">Try turning off certificate verification while you work through the issue.
</font></p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><font face="Consolas"><br>
</font></p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><font face="Consolas">I have also found that there is a need on opensips 2.2.x to re-specify the global params under your server/client domains - i have certainly had issues with that in the past.
try issuing all of your global directives a second time, prefixed with your server domain.</font></p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><font face="Consolas"><br>
</font></p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><font face="Consolas">Personally I specify the ciphers list and aim for a higher standard of security - here's an excerpt:</font></p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><font face="Consolas"><br>
</font></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"dh_params", "/etc/pki/tls/certs/dhparam.pem")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"ec_curve", "secp384r1")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"ciphers_list", "EECDH+AESGCM,EDH+AESGCM,AES256+EECDH,AES256+EDH")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"verify_cert", "1") <font color="#ff9900"># Switch off during initial testing to rule this out</font></span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"require_cert", "1") </span><span style="color:rgb(255,153,0); font-family:Consolas"># Switch off during initial testing to rule this out</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"tls_method", "TLSv1_2")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"certificate", "/etc/pki/tls/certs/dom.sip.crt")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"private_key", "/etc/pki/tls/private/dom.sip.key")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"ca_list", "/etc/pki/tls/certs/ca-bundle.crt")</span></p>
<p dir="ltr" style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span style="font-size:9pt; font-family:Consolas; background-color:transparent; font-weight:400; font-style:normal; text-decoration:none; vertical-align:baseline; white-space:pre-wrap">modparam("tls_mgm",
"ca_dir", "/etc/pki/tls/certs/")</span></p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><br>
</p>
<p style="line-height:1.2; margin-top:0pt; margin-bottom:0pt"><span id="m_3606274079679815545inbox-inbox-docs-internal-guid-a833c2f7-6ff0-538c-3606-d88e1dce59f7"></span><font face="monospace">Note the inclusion of ca_dir and ciphers_list. Looking forward to
hearing how you get on.</font><br class="m_3606274079679815545inbox-inbox-Apple-interchange-newline">
</p>
</span><br>
<div class="gmail_quote">
<div dir="ltr">On Fri, Sep 8, 2017 at 4:42 PM Jonathan Hunter <<a href="mailto:hunterj91@hotmail.com" target="_blank">hunterj91@hotmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div id="m_3606274079679815545m_-8969509322233141953m_6840361055690419221divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<p></p>
<div>Hi Guys,</div>
<div><br>
</div>
<div>Sorry for the noise. </div>
<div><br>
</div>
<div>I am testing SIP over TLS and having some issues getting client devices to register having upgraded from opensips 1.11 to 2.2.5.</div>
<div><br>
</div>
<div>Please see my configuration below;</div>
<div><br>
</div>
<div><br>
</div>
<div>opensips 2.2.5</div>
<div><br>
</div>
<div><br>
</div>
<div>listen=tcp:<Public_IP>:5060</div>
<div>listen=tls:<Public_IP>:5061</div>
<div>loadmodule "proto_tcp.so"</div>
<div>loadmodule "proto_udp.so"</div>
<div>loadmodule "proto_tls.so"</div>
<div>loadmodule "tls_mgm.so"</div>
<div><br>
</div>
<div>#Global params</div>
<div>modparam("tls_mgm", "tls_method", "SSLv23")</div>
<div>modparam("tls_mgm", "certificate", "/etc/opensips/tls/rootCA/certs/ssl_certificate.pem")</div>
<div>modparam("tls_mgm", "private_key", "/etc/opensips/tls/rootCA/certs/sip.provider.net.pem")</div>
<div>modparam("tls_mgm", "ca_list", "/etc/opensips/tls/rootCA/certs/IntermediateCA.pem")</div>
<div>modparam("tls_mgm", "require_cert", "0")</div>
<div>modparam("tls_mgm", "verify_cert", "1")</div>
<div>#server domain</div>
<div>modparam("tls_mgm", "server_domain", "sv_dom=<Public_IP>:5061")</div>
<div>modparam("tls_mgm", "certificate", "sv_dom:/etc/opensips/tls/rootCA/certs/ssl_certificate.pem")</div>
<div>modparam("tls_mgm", "private_key", "sv_dom:/etc/opensips/tls/rootCA/certs/sip.provider.net.pem")</div>
<div>modparam("tls_mgm", "ca_list", "sv_dom:/etc/opensips/tls/rootCA/certs/IntermediateCA.pem")</div>
<div>modparam("tls_mgm", "tls_method", "sv_dom:SSLv23")</div>
<div>modparam("tls_mgm", "require_cert", "sv_dom:0")</div>
<div>modparam("tls_mgm", "verify_cert", "sv_dom:1")</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>I am trying to register both Bria client and Yealink and I cant register my device, opensips logs show no errors;</div>
<div><br>
</div>
<div>Sep 8 15:14:56 localhost VU-SIP-Proxy[14664]: INFO:core:probe_max_sock_buff: using snd buffer of 244 kb</div>
<div>Sep 8 15:14:56 localhost VU-SIP-Proxy[14664]: INFO:core:init_sock_keepalive: TCP keepalive enabled on socket 37</div>
<div>Sep 8 15:14:56 localhost VU-SIP-Proxy[14649]: INFO:proto_tls:tls_accept: New TLS connection from
<a href="http://91.151.6.28:10405" target="_blank">91.151.6.28:10405</a> accepted</div>
<div>Sep 8 15:14:56 localhost VU-SIP-Proxy[14649]: INFO:proto_tls:tls_accept: Client did not present a TLS certificate</div>
<div>Sep 8 15:14:56 localhost VU-SIP-Proxy[14649]: INFO:proto_tls:tls_dump_cert_info: tls_accept: local TLS server certificate subject: /CN=<a href="http://sip.provider.net" target="_blank">sip.provider.net</a>, issuer: /C=US/O=GeoTrust Inc./CN=RapidSSL SHA256
CA</div>
<div><br>
</div>
<div>And in a wireshark trace when debugging I see using the private key, there is Client Hello,Server Hello, Certificate, Server Hello Done, then Client Key Exchange, Change Cipher Spec,Finished, then New Session Ticket, change Cipher Spec, then finished.</div>
<div><br>
</div>
<div>At which point I see Close Notify.</div>
<div><br>
</div>
<div>Do I need to specify a Ciphers list? </div>
<div><br>
</div>
<div>I appreciate debugging TLS can be complex but having had it working ok in the testing phase on 1.11 I presume I am just misconfiguring for 2.2?</div>
<div><br>
</div>
<div>Many Thanks!</div>
<div><br>
</div>
<div>Jon</div>
<br>
<p></p>
</div>
</div>
_______________________________________________<br>
Users mailing list<br>
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<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" rel="noreferrer" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
</blockquote>
</div>
</div>
<div dir="ltr">-- <br>
</div>
<div class="m_3606274079679815545gmail_signature">
<div dir="ltr">Callum Guy
<div>Head of Information Security</div>
<div>X-on</div>
</div>
</div>
<br>
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<div dir="ltr">Callum Guy
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