# SNI and nginx: do I have to rebuild all my certificates?

**URL:** <https://www.ruby-forum.com/t/sni-and-nginx-do-i-have-to-rebuild-all-my-certificates/199944>\
**Category:** NGINX\
**Created:** [December 1, 2010, 8:04pm UTC](https://www.ruby-forum.com/t/sni-and-nginx-do-i-have-to-rebuild-all-my-certificates/199944 "2010-12-01T20:04:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/77aa72/32.png) [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\
**Post date:** [December 1, 2010, 8:04pm UTC](https://www.ruby-forum.com/t/sni-and-nginx-do-i-have-to-rebuild-all-my-certificates/199944/1 "2010-12-01T20:04:10Z")

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Just about to enable Server Name Indication (SNI) support for my SSL and  
I’m really curious if I have to rebuild all my self-signed certs (nginx,  
qmail, webmin, etc) after upgrading openssl and nginx.

Can I still use my old certs?

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**Author:** ![Ian\_MSEvans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/7bcc69/32.png) [@Ian\_MSEvans](https://www.ruby-forum.com/u/Ian_MSEvans)\
**Post date:** [December 1, 2010, 9:10pm UTC](https://www.ruby-forum.com/t/sni-and-nginx-do-i-have-to-rebuild-all-my-certificates/199944/2 "2010-12-01T21:10:40Z")

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On Wed, Dec 01, 2010 at 02:02:29PM -0500, Ian M. Evans wrote:

> Just about to enable Server Name Indication (SNI) support for my SSL and  
> I’m really curious if I have to rebuild all my self-signed certs (nginx,  
> qmail, webmin, etc) after upgrading openssl and nginx.
> 
> Can I still use my old certs?

You can use the old certificates.

–  
Igor S.

> **[Igor Sysoev](http://sysoev.ru/en/)**