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nginx default config file is fully commented with explanations

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hugo gogo
2022-08-31 13:58:34 +02:00
parent f03422ab4f
commit 2967738e7a
7 changed files with 79 additions and 46 deletions
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4
srcs/requirements/nginx/conf/inception_nginx.conf
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@@ -1,4 +1,8 @@
server {
# http uses port 80, and https uses port 443
listen 443 ssl; # for ipv4.
listen [::]:443 ssl; # for ipv6.
server_name localhost;
location / {
root /data/www;

44
srcs/requirements/nginx/conf/nginx.conf
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@@ -1,50 +1,52 @@
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
# doc : https://nginx.org/en/docs/dirindex.html
events {
worker_connections 768;
user www-data; # process owner name, can be anything
worker_processes auto; # a worker is a process that handles incoming requests, auto to automatically adjust the number of processes available
pid /run/nginx.pid; # defines a file that will store the process id of the main process
include /etc/nginx/modules-enabled/*.conf; # include a file
events { # section for connection processing directives
worker_connections 768; # max number of connection that can be opened by a worker process
# multi_accept on;
}
http {
http { # section for http server directives
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
sendfile on; # enable the use of linux sendfil() function, that transfer data directly betzeen fd, so withour copying to intermediate memory buffer, it increases performances in most cases (https://stackoverflow.com/questions/58066785/always-use-sendfile-with-nginx-on-linux)
tcp_nopush on; # enables the socket option TCP_CORK/TCP_NOPUSH, that allows to send packets filled with more datas (https://baus.net/on-tcp_cork/)
tcp_nodelay on; # opposit of TCP_CORK, TCP_NODELAY says the application to send datas as soon as it receives it, both options are exclusives but can work together in modern kernel (https://stackoverflow.com/questions/3761276/when-should-i-use-tcp-nodelay-and-when-tcp-cork)
keepalive_timeout 65; # in seconds, defines time before closing a connexion without activity
types_hash_max_size 2048; # maximum size for the list that stores duplicates of the hash table, size of the hash table is chosen accordingly (https://nginx.org/en/docs/hash.html, hash table : https://www.youtube.com/watch?v=KyUTuwz_b7Q)
# server_tokens off;
# server_names_hash_bucket_size 64;
# server_name_in_redirect off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
include /etc/nginx/mime.types; # include a file
default_type application/octet-stream; # defines the default MIME type (default is text/plain)
##
# SSL Settings
##
ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
ssl_prefer_server_ciphers on;
ssl_protocols TLSv1.2; # Dropping SSLv3, ref: POODLE # enables the specified protocols. The TLSv1.1 and TLSv1.2 parameters works only when OpenSSL 1.0.1 or higher is used, and the TLSv1.3 only when OpenSSL 1.1.1 or higher is used
ssl_prefer_server_ciphers on; # Specifies that server ciphers should be preferred over client ciphers when using the SSLv3 and TLS protocols (a cipher is "an algorithm for performing encryption or decryption, a series of [...] steps that can be followed as a procedure" https://en.wikipedia.org/wiki/Cipher_suite)
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
access_log /var/log/nginx/access.log; # defines where to write the access logs. if gzip is used, the log will be buffered
error_log /var/log/nginx/error.log; # defines where to write the error logs. if gzip is used, the log will be buffered
##
# Gzip Settings
##
gzip on;
gzip on; # enable gzipping of responses. gzip is an algorithm that compress the data
# gzip_vary on;
# gzip_proxied any;
@@ -57,8 +59,8 @@ http {
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
include /etc/nginx/conf.d/*.conf; # include the *.conf files found in conf.d folder. do the same as "sites-enabled" with another approach : you put your .conf files for the site inside this folder, and if you want to disable a config file you just rename it to no have a .conf suffix
# include /etc/nginx/sites-enabled/*; # include all the (symlink) files found in sites-enabled folder. do the same as "conf.d" with another approach : you put all your configurations files into a "/etc/nginx/sites-available/" folder, and you put symlinks of a selection of thoses files that you want to use for the site, into "/etc/nginx/sites-enabled/" folder (bad practice : https://serverfault.com/questions/527630/difference-in-sites-available-vs-sites-enabled-vs-conf-d-directories-nginx#answer-870709)
}