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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hey Nisa,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Just wondering, if it’s only a whitelist filtering proxy for TLS/SSL/443<br>Wouldn’t it be better to use a basic SNI proxy with a whitelist?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Eliezer<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>----<o:p></o:p></p><p class=MsoNormal>Eliezer Croitoru<o:p></o:p></p><p class=MsoNormal>Tech Support<o:p></o:p></p><p class=MsoNormal>Mobile: +972-5-28704261<o:p></o:p></p><p class=MsoNormal>Email: <a href="mailto:ngtech1ltd@gmail.com">ngtech1ltd@gmail.com</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> squid-users <squid-users-bounces@lists.squid-cache.org> <b>On Behalf Of </b>Nisa Balakrishnan<br><b>Sent:</b> Wednesday, October 7, 2020 4:23 AM<br><b>To:</b> Amos Jeffries <squid3@treenet.co.nz><br><b>Cc:</b> squid-users@lists.squid-cache.org<br><b>Subject:</b> Re: [squid-users] sslproxy_options on squid 3.5.20<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Thanks Amos.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have verified that squid build is done with openssl that supports 1.2 but not 1.3.<o:p></o:p></p></div><div><p class=MsoNormal>I am worried that squid does not pass the flag set via options.<o:p></o:p></p></div><div><p class=MsoNormal>I am able to lock squid to tls 1.2 only with sslproxy_version <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>To be a bit more clear, the squid implementation is a whitelist filtering proxy. It does not bump ssl requests. It does peek and splice on intercept.<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Tue, 6 Oct 2020 at 20:34, Amos Jeffries <<a href="mailto:squid3@treenet.co.nz">squid3@treenet.co.nz</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal>On 6/10/20 1:35 pm, Nisa Balakrishnan wrote:<br>> Hi,<br>> <br>> I am trying to allow access for only tls versions 1.2 and above on Squid<br>> 3.5.20<br>> <br><br>Note that "above 1.2" are not supported by that ancient version of<br>Squid. Your test disables everything except SSLv1 code in the library.<br><br><br>> For testing purposes, I have set options in squid config as follows.<br>> <br>> ```<br>> https_port 3130 cert=/etc/squid/ssl/squid.pem ssl-bump intercept<br>> options=NO_SSLv2,NO_SSLv3,NO_TLSv1,NO_TLSv1_2<br>> <br>> sslproxy_options NO_SSLv2,NO_SSLv3,NO_TLSv1,NO_TLSv1_2<br>> ```<br>> <br><br>Support for all those options depends on the version, build options, and<br>global config settings of the OpenSSL library being used. They are just<br>flags Squid passes to the library on connection setup.<br><br><br>FWIW 3.1.20 is over 4 years old and a huge amount of change has happened<br>to TLS since then. Please try to upgrade to current Squid-4 stable, or<br>for best SSL-Bump behaviour the current Squid-5 beta.<br><br>Amos<br>_______________________________________________<br>squid-users mailing list<br><a href="mailto:squid-users@lists.squid-cache.org" target="_blank">squid-users@lists.squid-cache.org</a><br><a href="http://lists.squid-cache.org/listinfo/squid-users" target="_blank">http://lists.squid-cache.org/listinfo/squid-users</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><div><div><div><p class=MsoNormal><o:p> </o:p></p><div><div><div><table class=MsoNormalTable border=1 cellpadding=0 width="100%" style='width:100.0%;border-top:dotted #999999 1.0pt;border-left:none;border-bottom:dotted #999999 1.0pt;border-right:none;min-width:530px'><tr><td width=26 style='width:19.5pt;border:none;padding:0in 3.0pt 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:4.5pt;margin-right:0in;margin-bottom:4.5pt;margin-left:0in'><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#606F78'><img border=0 width=142 height=23 style='width:1.4791in;height:.2395in' id="_x0000_i1026" src="https://email-signature.servian.com/servian_email_142x23.png"></span><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#606F78'><o:p></o:p></span></p></td><td style='border:none;padding:3.0pt 3.0pt 3.0pt 3.0pt'><p class=MsoNormal style='mso-margin-top-alt:4.5pt;margin-right:0in;margin-bottom:4.5pt;margin-left:0in'><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#606F78'><img border=0 width=100 height=23 style='width:1.0416in;height:.2395in' id="_x0000_i1025" src="https://email-signature.servian.com/vibrato.png"></span><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#606F78'><o:p></o:p></span></p></td><td style='border:none;padding:3.0pt 3.0pt 3.0pt 3.0pt'><p class=MsoNormal style='mso-margin-top-alt:4.5pt;margin-right:0in;margin-bottom:4.5pt;margin-left:0in'><b><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#F48043'>Nisa Balakrishnan</span></b><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#606F78'> AutomationEngineer | m: <a href="tel:0473942819" target="_blank"><span style='color:#1155CC'>0473942819</span></a> | p: <a href="tel:+61390813700" target="_blank"><span style='color:#1155CC'>03 9081 3700</span></a><br>Level 20, Tower 5, Collins Square, 727 Collins Street, Docklands VIC 3008<o:p></o:p></span></p></td></tr></table><p style='mso-margin-top-alt:4.5pt;margin-right:0in;margin-bottom:4.5pt;margin-left:0in'><span style='font-size:8.5pt;font-family:"Verdana",sans-serif;color:#606F78'>Vibrato has merged with Servian! Check out the news article <a href="https://www.arnnet.com.au/article/664971/servian-nabs-vibrato-multi-million-dollar-deal/" target="_blank"><span style='color:#1155CC'>here</span></a><o:p></o:p></span></p></div></div></div></div></div></div></div></div></body></html>