Beta Branch disable deprecated HTTP/2 variables in Nginx 1.19.7+ in 123.09beta01

disable deprecated HTTP/2 variables in Nginx 1.19.7+ in 123.09beta01

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- For fresh nginx vhost creation in centmin.sh menu option 2, 22, nv command line and addons/acmetool.sh, disable (by commenting out with hash # in front) deprecated HTTP/2 variables in nginx 1.19.7+ as per http://hg.nginx.org/nginx/rev/827202ca1269 and http://hg.nginx.org/nginx/rev/f790816a0e87 for http2_max_field_size, http2_max_header_size and http2_max_requests
- On centmin.sh menu option 4 Nginx compile/recompile/upgrade also check all existing Nginx vhosts fo deprecated variables and auto disable them if nginx 1.19.7+ version is detected as upgrade version
- Existing Centmin Mod 123.09beta01 or higher users can first run cmupdate to update local code and then run centmin.sh menu option 4 to recompile nginx 1.19.7 to auto disable deprecated variables from nginx vhosts

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123.09beta01 branch

• Branch: centminmod/centminmod
• Commit History: centminmod/centminmod

 

If you're using these deprecated HTTP/2 variables in Nginx 1.19.7+ vhosts, on Nginx service restarts or Nginx config checks (nginx -t), you'll get Nginx warning messages as such but the Nginx service will still start and run Nginx server fine. Example warning message:

Code (Text):

nginx: [warn] the "http2_max_field_size" directive is obsolete, use the "large_client_header_buffers" directive instead in /usr/local/nginx/conf/conf.d/domain.com.ssl.conf:26
nginx: [warn] the "http2_max_header_size" directive is obsolete, use the "large_client_header_buffers" directive instead in /usr/local/nginx/conf/conf.d/domain.com.ssl.conf:27
nginx: [warn] the "http2_max_requests" directive is obsolete, use the "keepalive_requests" directive instead in /usr/local/nginx/conf/conf.d/domain.com.ssl.conf:28

 

No need to do anything when you run centmin.sh menu option 4 to update to nginx 1.19.7. They're being deprecated/removed and will use existing variables already in place in Centmin Mod Nginx config at the global level in /usr/local/nginx/conf/nginx.conf.