Nginx configuration file nginx.conf Chinese detailed explanation (summary)

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PS: Nginx has been used for two or three years, and now I often encounter some very basic questions from new users, and I don’t have time to answer them one by one. I spent some time this afternoon, combined with my own experience, to configure the main configuration of Nginx Share the parameter description, and also refer to some network content. This is the most complete Chinese description of Nginx configuration parameters. For more detailed module parameters, please refer to: http://wiki.nginx.org/Main
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#Define the user and user group for Nginx to run
user www www;
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#nginx process number, it is recommended to set it equal to the total number of CPU cores.
worker_processes 8;
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#Global error log definition type, [ debug | info | notice | warn | error | crit ]
error_log ar/loginx/error.log info;
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#Process file
pid ar/runinx.pid;
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#The maximum number of file descriptors opened by an nginx process, the theoretical value should be the maximum number of open files (system value ulimit -n) divided by the number of nginx processes, but nginx allocation requests are not uniform, so it is recommended to use ulimit -n The value remains the same.
worker_rlimit_nofile 65535;
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#Working mode and connection limit
events
{
#Reference event model, use [ kqueue | rtsig | epoll | /dev/poll | select | poll ]; The epoll model is a high-performance network I/O model in the kernel of Linux 2.6 and above. If it runs on FreeBSD, use kqueue Model.
use epoll;
#The maximum number of connections for a single process (maximum number of connections = number of connections * number of processes)
worker_connections 65535;
}
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#Set up the http server
http
{
include mime.types; #file extension and file type mapping table
default_type application/octet-stream; #default file type
#charset utf-8; #Default encoding
server_names_hash_bucket_size 128; #The hash table size of the server name
client_header_buffer_size 32k; #upload file size limit
large_client_header_buffers 4 64k; #Set request buffer
client_max_body_size 8m; #Set request delay
sendfile on; #Enable high-efficiency file transfer mode. The sendfile command specifies whether nginx calls the sendfile function to output files. It is set to on for ordinary applications. If it is used for downloading applications such as disk IO heavy load applications, it can be set to off to balance the disk. And network I/O processing speed, reduce system load. Note: If the picture display is not normal, change this to off.
autoindex on; #Enable directory list access, suitable for downloading servers, closed by default.
tcp_nopush on; #Prevent network blocking
tcp_nodelay on; #Prevent network blocking
keepalive_timeout 120; #Long connection timeout, the unit is second
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#FastCGI related parameters are to improve website performance: reduce resource usage and increase access speed. The following parameters can be understood literally.
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 128k;
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#gzip module settings
gzip on; #Open gzip compressed output
gzip_min_length 1k; #minimum compressed file size
gzip_buffers 4 16k; #compression buffer
gzip_http_version 1.0; #compressed version (default 1.1, if the front end is squid2.5, please use 1.0)
gzip_comp_level 2; #compression level
gzip_types text/plain application/x-Javascript text/css application/xml;
#Compression type, textml is already included by default, so there is no need to write it below, and there will be no problem writing it, but there will be a warn.
gzip_vary on;
#limit_zone crawler $binary_remote_addr 10m; #It needs to be used when the number of IP connections is limited
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upstream blog.ha97.com {
#Upstream load balancing, weight is the weight, and the weight can be defined according to the machine configuration. The weight parameter represents the weight value, the higher the weight value, the greater the probability of being assigned.
server 192.168.80.121:80 weight=3;
server 192.168.80.122:80 weight=2;
server 192.168.80.123:80 weight=3;
}
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#Configuration of the virtual host
server
{
#Listening port
listen 80;
#Domain name can have multiple, separated by spaces
server_name www.ha97.com ha97.com;
index index.html index.htm index.php;
root /data/www/ha97;
location ~ .*.(php|php5)?$
{
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi.conf;
}
#Image cache time setting
location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$
{
expires 10d;
}
#JS and CSS cache time settings
location ~ .*.(js|css)?$
{
expires 1h;
}
#log format setting
log_format access '$remote_addr – $remote_user [$time_local] “$request” '
'$status $body_bytes_sent “$http_referer” '
'”$http_user_agent” $http_x_forwarded_for';
#Define the access log of this virtual host
access_log ar/loginx/ha97access.log access;
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#Enable reverse proxy for “/”
location / {
proxy_pass http://127.0.0.1:88;
proxy_redirect off;
proxy_set_header X-Real-IP $remote_addr;
#The back-end web server can obtain the user’s real IP through X-Forwarded-For
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
#The following are some reverse proxy configurations, optional.
proxy_set_header Host $host;
client_max_body_size 10m; #The maximum number of bytes of a single file that a client can request
client_body_buffer_size 128k; #The buffer agent buffers the maximum number of bytes requested by the client,
proxy_connect_timeout 90; #nginx and backend server connection timeout (proxy connection timeout)
proxy_send_timeout 90; #Backend server data return time (proxy sending timeout)
proxy_read_timeout 90; #After the connection is successful, the response time of the backend server (agent receiving timeout)
proxy_buffer_size 4k; #Set the buffer size of the proxy server (nginx) to save user header information
proxy_buffers 4 32k; #proxy_buffers buffer, the average web page is set below 32k
proxy_busy_buffers_size 64k; #buffer size under high load (proxy_buffers*2)
proxy_temp_file_write_size 64k;
#Set the size of the cache folder, if it is greater than this value, it will be uploaded from the upstream server
}
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#Set the address to view the status of Nginx
location /NginxStatus {
stub_status on;
access_log on;
auth_basic “NginxStatus”;
auth_basic_user_file confpasswd;
The content of the #htpasswd file can be generated with the htpasswd tool provided by Apache.
}
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# Local dynamic and static separation reverse proxy configuration
#All jsp pages are processed by tomcat or resin
location ~ .(jsp|jspx|do)?$ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://127.0.0.1:8080;
}
#All static files are directly read by nginx without tomcat or resin
location ~ .*.(htm|html|gif|jpg|jpeg|png|bmp|swf|ioc|rar|zip|txt|flv|mid|doc|ppt|pdf|xls|mp3|wma)$
{ expires 15d; }
location ~ .*.(js|css)?$
{ expires 1h; }
}
}
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For more detailed module parameters, please refer to: http://wiki.nginx.org/Main