Tuesday 21 July 2020

NET::ERR_SSL_OBSOLETE_VERSION when browsing an SSL site in Apache

It would appear that today is the day Chrome has stopped supporting older versions of TLS and if you're running any legacy sites you may receive this error when browsing them:

NET::ERR_SSL_OBSOLETE_VERSION

To resolve you need to enable TLS 1.2 in your Apache SSL conf file

Find the httpd-ssl.conf file in your Apache folder and look for the following line:

SSLProtocol -all +TLSv1 +SSLv3

Add +TLSv1.2 at the end so it reads as follows:

SSLProtocol -all +TLSv1 +SSLv3 +TLSv1.2

Restart the Apache server 

Whether you want the other protocols still present is up to you of course!


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