Optimize nginx config (#4390)

* Nginx fastopen 4096
The same default as h2o

* Delete rlimit nofile in nginx

frameworks/C/nginx/nginx.conf

@@ -24,7 +24,7 @@ http {
     keepalive_requests 300000; #default 100
 
     server {
-        listen      8080 default_server reuseport;
+        listen      8080 default_server reuseport fastopen=4096;
                     #8080 default_server reuseport deferred backlog=65535 fastopen=4096;
         root /;
         

frameworks/PHP/kumbiaphp/deploy/nginx.conf

@@ -1,7 +1,7 @@
 user www-data;
 worker_processes  auto;
 error_log stderr error;
-worker_rlimit_nofile 200000;
+#worker_rlimit_nofile 100000;
 
 events {
     worker_connections 16384;
@@ -40,6 +40,7 @@ http {
     upstream fastcgi_backend {
         server unix:/var/run/php/php7.3-fpm.sock;
         keepalive 20;
+        
     }
 
     server {

frameworks/PHP/php/deploy/nginx5.conf

@@ -1,7 +1,7 @@
 user www-data;
 worker_processes  auto;
 error_log stderr error;
-worker_rlimit_nofile 200000;
+#worker_rlimit_nofile 100000;
 pcre_jit on;
 
 events {

frameworks/PHP/php/deploy/nginx7.conf

@@ -1,7 +1,7 @@
 user www-data;
 worker_processes  auto;
 error_log stderr error;
-worker_rlimit_nofile 200000;
+#worker_rlimit_nofile 100000;
 pcre_jit on;
 
 events {

frameworks/PHP/php/deploy/nginx_php.conf

@@ -1,7 +1,7 @@
 user www-data;
 worker_processes  auto;
 error_log stderr error;
-worker_rlimit_nofile 200000;
+#worker_rlimit_nofile 100000;
 daemon off;
 
 events {