Re: nginx-1.17.3 and TLS v1.3

[Maxim Dounin]

Hello!

On Thu, Aug 15, 2019 at 09:05:42AM -0400, TC_Hessen wrote:

> Hi,
> 
> I am new to this forum, but not new to nginx. I am running multiple debian
> servers (stretch) with nginx 1.14.1 and TLS 1.3 support, i.e.
> 
> nginx version: nginx/1.14.1
> built with OpenSSL 1.1.0f  25 May 2017 (running with OpenSSL 1.1.1c  28 May
> 2019)
> TLS SNI support enabled
> 
> To prevent the servers agains the new bugs, I tried to upgrade directly to
> 1.17.3 provided by nginx.org. That works without any problems, but TLS 1.3
> is not running anymore:
> 
> nginx version: nginx/1.17.3
> built by gcc 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)
> built with OpenSSL 1.1.0j  20 Nov 2018 (running with OpenSSL 1.1.1c  28 May
> 2019)
> TLS SNI support enabled
> 
> Where is the error?

OS you are using is shipped with OpenSSL 1.1.0j, and nginx is 
built with this old OpenSSL version.  As such, TLSv1.3 is not 
available.

There was a bug which made TLSv1.3 always enabled when was 
compiled with OpenSSL 1.1.0 and running with OpenSSL 1.1.1, it was 
fixed in nginx 1.15.6 and 1.14.2 (quote from 
http://nginx.org/en/CHANGES-1.14):

*) Bugfix: if nginx was built with OpenSSL 1.1.0 and used with OpenSSL
   1.1.1, the TLS 1.3 protocol was always enabled.

Since you were using nginx 1.14.1 previously, TLS 1.3 was enabled 
due to this bug.

-- 
Maxim Dounin
http://mdounin.ru/
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Re: nginx-1.17.3 and TLS v1.3

[targon]

I suggest you consider investigating Intels' Clear Linux.

https://docs.01.org/clearlinux/latest/index.html 


https://docs.01.org/clearlinux/latest/about.html# 


https://docs.01.org/clearlinux/latest/reference/bundles/bundles.html 


read specifically about swupd and bundles.

This is a ’Stateless’ OS

In particular to your issues, on Clear Linux you'd install nginx-mainline 
bundle,
all the source packages and dependancies are tested with the bundle before 
distribution to swupd

Example, the nginx-mainline bundle version requires lib-openssl, the and only 
compatible tested lib-openssl package version will be included. 

This strategy eliminates all those fragmented dependancy issues every other 
Linux distro, where you install nginx but you’ve no real idea what openssl 
version is going to work with it.

Admittedly, Clear Linux is a little unfamiliar at first but give it a try, 
there’s far less headaches to deal with than other the ‘popular’ distros.

Apologies for not addressing your issue directly.

> On 15 Aug 2019, at 21:05, TC_Hessen  wrote:
> 
> Hi,
> 
> I am new to this forum, but not new to nginx. I am running multiple debian
> servers (stretch) with nginx 1.14.1 and TLS 1.3 support, i.e.
> 
> nginx version: nginx/1.14.1
> built with OpenSSL 1.1.0f  25 May 2017 (running with OpenSSL 1.1.1c  28 May
> 2019)
> TLS SNI support enabled
> 
> To prevent the servers agains the new bugs, I tried to upgrade directly to
> 1.17.3 provided by nginx.org. That works without any problems, but TLS 1.3
> is not running anymore:
> 
> nginx version: nginx/1.17.3
> built by gcc 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)
> built with OpenSSL 1.1.0j  20 Nov 2018 (running with OpenSSL 1.1.1c  28 May
> 2019)
> TLS SNI support enabled
> 
> Where is the error?
> 
> Posted at Nginx Forum: 
> https://forum.nginx.org/read.php?2,285294,285294#msg-285294
> 
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