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Configure buffers, timeouts and file handle

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Create a separate custom conf file within /etc/nginx/ folder

mkdir /etc/nginx/global
cd /etc/nginx/global
sudo touch buffers.conf
sudo touch timeouts.conf
sudo touch file_handle_cache.conf

sudo nano buffers.conf  

######
## NGINX.CONF BUFFER DIRECTIVES
######

# BUFFERS
client_body_buffer_sixe 10k;
client_header_buffer_size 1k;
clidnt_max_body_size 8m;
large_content_header_buffers 2 1k;

sudo nano file_handle_cache.conf

# FILE HANDLE CACHE
open_file_chache max=1500 inactive=30s;
open_file_cache_valid 30s;
open_file_cache_min_users 5;
open_file_cache_errors off;

Nginx will keep open 1500 files for 30 seconds. This excludes any file that has not been accessed for 30 sec; and only files that have been accessed in this timeframe

sudo nano timeouts.conf

######
## NGINX.CONF TIMEOUTS DIRECTIVES
######

# TIMEOUTS
client_header_timeout 3m;
client_body_timeout 3m;
keepalive_timeout 100;
keepalive_requests 1000;
send_timeout 3m;

Incude the above into main Nginx configuration

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Navigate one folder up (to /etc/nginx)

sudo nano nginx.conf

Add a heading in the nginx.conf under section #Virtual Hosts Configs (under the line: include /etc/nginx/sites-enabled/*;). This is located in http context. (Tutor also says that this is the end of the file - however - fit the code before the final curly bracket)

##
# Buffers Timeouts File Handle Cache
##

*(use 'include directive'--> syntax for this is: include <path to the file>

include global/buffers.conf;
include global/timeouts.conf;
# include global/file_handle_cache.conf

*(comment out the file_handle_cache.conf- it will be uncommented once server is running. For it to work proprely it needs a stable asset environment.)

Save changes, exit nano

Test for errors and reload nginx

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sudo nginx -t
sudo systemctl reload nginx