[CentOS] easy way to stop old ssl's

Sat Oct 12 04:48:32 UTC 2019
Leroy Tennison <leroy at datavoiceint.com>

Without context it's impossible to make firm statements but, having gone through this a while back (and discovering that less than 1 percent of an examined list of connections couldn't support current ssl - mainly Apple hardware), who do you want to protect?  Is it the minority who won't/can't upgrade or the majority who have?  And, do you have to protect yourself from liability (regulatory or contractual)?  If the environment is in any way sensitive (Personally Identifiable Information, Health data, Credit Card data) then the answer is obvious.
From: CentOS <centos-bounces at centos.org> on behalf of Warren Young <warren at etr-usa.com>
Sent: Friday, October 11, 2019 3:58 PM
To: CentOS mailing list <centos at centos.org>
Subject: [EXTERNAL] Re: [CentOS] easy way to stop old ssl's


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On Oct 11, 2019, at 2:52 PM, isdtor <isdtor at gmail.com> wrote:
>> Yes, breaking changes.  Doing this *will* cut off support for older browsers.  On purpose.
> Old browsers aren't really the problem. Even ff 45 (?) from CentOS5 will happily access a TLSv1.2-only server.

IE 10 and older won’t, though: https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fcaniuse.com%2f%23feat%3dtls1-2&c=E,1,OoDXU9RwckHnPZSdyy1A-Mat1VYd83r6qJeujdFE_9jDKQp4hvmqnE9CbbcsCi5OsTOOx75sM1xfwvskBnYzTm7sNq1P3DnbfLyLhGR491ys6viVqTrf&typo=1

> The problem is user that have old versions of software installed with no TLSv1.2 support. SVN, python 2.7 scripts, etc.

Also true.  There’s a lot of stuff still linked to OpenSSL 1.0.0 and 0.98.
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