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List: stunnel-users
Subject: [stunnel-users] Configure stunnel to clear SSL_OP_LEGACY_SERVER_CONNECT to prevent connections to un
From: "Simner, John" <john.simner () unify ! com>
Date: 2014-06-19 11:42:42
Message-ID: 5B74BA474FDDA4418CCD02CA71FBCA8A44EE5D2C () MCHP03MSX ! global-ad ! net
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Hi,
I have a requirement for a stunnel client built with openSSL 0.9.8y to not =
connect to unpatched servers.
I know this is a simple matter of using SSL_CTX_clear_options(ctx, SSL_OP_=
LEGACY_SERVER_CONNECT);
Is there any way of configuring stunnel to clear this option?
If this is the wrong approach, how can I prevent stunnel connecting to unpa=
tched servers?
Thank you for your assistance and look forward to your response.
John Simner
[Unify: Harmonize your enterprise]
John Simner BSc(Hons) MSc CEng. MIET
Software Engineer, Devices Development
Unify Enterprise Communications Ltd.
Tel.: +44 (1908) 817378 (One Number Service)
Email: john.simner@unify.com <mailto:vorname.name@unify.com>
www.unify.co.uk<http://www.unify.co.uk/>
Follow us: [Social_media_icons] <http://www.unify.com/social-media>
Unify Enterprise Communications Limited. Registered Office: Brickhill Stree=
t, Willen Lake, Milton Keynes, MK15 0DJ
Registered No: 5903714, England.
This email contains confidential information and is for the exclusive use o=
f the addressee.
If you are not the addressee then any distribution, copying, or use of this=
email is prohibited.
If received in error, please advise the sender and delete immediately. We a=
ccept no liability for
any loss or damage suffered by any person arising from use of this email.
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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal">I have a requirement for a stunnel client built with openSSL \
0.9.8y to not connect to unpatched servers.<o:p></o:p></p> <p class="MsoNormal">I \
know this is a simple matter of using SSL_CTX_clear_options(ctx, \
SSL_OP_LEGACY_SERVER_CONNECT);<o:p></o:p></p> <p \
class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">Is there any way of \
configuring stunnel to clear this option?<o:p></o:p></p> <p \
class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">If this is the wrong \
approach, how can I prevent stunnel connecting to unpatched servers?<o:p></o:p></p> \
<p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">Thank you for your \
assistance and look forward to your response.<o:p></o:p></p> <p \
class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">John Simner \
<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#2A3136"><img \
width="172" height="22" id="Picture_x0020_1" src="cid:image001.gif@01CF8BBB.EDA19A90" \
alt="Unify: Harmonize your enterprise"></span><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif"">John \
Simner BSc(Hons) MSc CEng. MIET</span><span \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span \
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Software \
Engineer, Devices Development<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR" \
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Unify \
Enterprise Communications Ltd.<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-GB" style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Tel.: \
+44 (1908) 817378 (One Number Service)<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Email: \
<a href="mailto:vorname.name@unify.com"><span \
style="color:blue">john.simner@unify.com </span></a><u><span \
style="color:blue"><o:p></o:p></span></u></span></p> <p class="MsoNormal"><u><span \
lang="EN-GB" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:blue"><o:p><span \
style="text-decoration:none"> </span></o:p></span></u></p> <p class="MsoNormal" \
style="text-autospace:none"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><a \
href="http://www.unify.co.uk/"><span \
style="color:blue">www.unify.co.uk</span></a></span><span \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Follow \
us: </span><a href="http://www.unify.com/social-media"><span \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext;text-decoration:none"><img \
border="0" width="132" height="14" id="Bild_x0020_1" \
src="cid:image002.png@01CF8BBB.EDA19A90" alt="Social_media_icons"></span></a><span \
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<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Unify \
Enterprise Communications Limited. Registered Office: Brickhill Street, \
Willen Lake, Milton Keynes, MK15 0DJ<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-GB" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Registered \
No: 5903714, England. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">This \
email contains confidential information and is for the exclusive use of the \
addressee. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">If \
you are not the addressee then any distribution, copying, or use of this email is \
prohibited.<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-GB" \
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">If \
received in error, please advise the sender and delete immediately. We accept no \
liability for<br> any loss or damage suffered by any person arising from use of this \
email.</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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