Nginx configuration file description

A detailed description of the Nginx configuration file, which records the description of the Nginx. conf configuration file of the nginx server, partial annotation collection and network.

# Running user
User www-data;
# Start the process. Generally, it is set to be equal to the number of CPUs
Worker_processes 1;

# Global error logs and PID files
Error_log/var/log/nginx/error. log;
Pid/var/run/nginx. pid;

# Working mode and maximum number of connections
Events {
Use epoll; # epoll is a method of Multiplexing IO (I/O Multiplexing), but it is only used for Linux and later kernels, which can greatly improve nginx performance.
Worker_connections 1024; # maximum number of concurrent connections of a single backend worker process
# Multi_accept on;
}

# Set the http server and use its reverse proxy function to provide Load Balancing support
Http {
# Set the mime type, which is defined by the mime. type file.
Include/etc/nginx/mime. types;
Default_type application/octet-stream;
# Set the log format
Access_log/var/log/nginx/access. log;

# The sendfile command specifies whether nginx calls the sendfile function (zero copy mode) to output files. For common applications,
# It must be set to on. If it is used for downloading and other application disk I/O heavy load applications, you can set it to off to balance the disk and network I/O processing speed and reduce the system uptime.
Sendfile on;
# Tcp_nopush on;

# Connection timeout
# Keepalive_timeout 0;
Keepalive_timeout 65;
Tcp_nodelay on;

# Enable gzip Compression
Gzip on;
Gzip_disable "MSIE [1-6] \. (?!. * SV1 )";

# Set Request Buffer
Client_header_buffer_size 1 k;
Large_client_header_buffers 4 4 k;

Include/etc/nginx/conf. d/*. conf;
Include/etc/nginx/sites-enabled /*;

# Set the Server list of Server Load balancer
Upstream mysvr {
# The weigth parameter indicates the weight. A higher weight indicates a higher probability of being assigned.
# Enable port 3128 for Squid on the local machine
Server 192.168.8.1: 3128 weight = 5;
Server 192.168.8.2: 80 weight = 1;
Server 192.168.8.3: 80 weight = 6;
}

Server {
# Listening to port 80
Listen 80;
# Define access using www.xx.com
Server_name www.xx.com;

# Set access logs for the current virtual host
Access_log logs/www.xx.com. access. log main;

# Default request
Location /{
Root/root; # define the default website root directory location of the server
Index. php index.html index.htm; # define the name of the home index file

Fastcgi_pass www.xx.com;
Fastcgi_param SCRIPT_FILENAME $ document_root/$ fastcgi_script_name;
Include/etc/nginx/fastcgi_params;
}

# Define error prompt page
Error_page 500 502 503 x.html;
Location =/50x.html {
Root/root;
}

# Handle static files by nginx
Location ~ ^/(Images | javascript | js | css | flash | media | static )/{
Root/var/www/virtual/htdocs;
# Static files are not updated for 30 days after they expire. You can set them to a larger value when they expire. If they are updated frequently, you can set them to a smaller value.
Expires 30d;
}
# PHP script requests are all forwarded to FastCGI for processing. Use the default FastCGI configuration.
Location ~ \. Php $ {
Root/root;
Fastcgi_pass 127.0.0.1: 9000;
Fastcgi_index index. php;
Fastcgi_param SCRIPT_FILENAME/home/www $ fastcgi_script_name;
Include fastcgi_params;
}
# Set the address for viewing Nginx status
Location/NginxStatus {
Stub_status on;
Access_log on;
Auth_basic "NginxStatus ";
Auth_basic_user_file conf/htpasswd;
}
# Prohibit access to the. htxxx File
Location ~ /\. Ht {
Deny all;
}

}
}

The above are some basic configurations. The biggest advantage of using Nginx is load balancing.

To use Server Load balancer, you can modify and configure the http node as follows:

# Set the http server and use its reverse proxy function to provide Load Balancing support
Http {
# Set the mime type, which is defined by the mime. type file.
Include/etc/nginx/mime. types;
Default_type application/octet-stream;
# Set the log format
Access_log/var/log/nginx/access. log;

# Omit some of the above configuration nodes

#..........

# Set the Server list of Server Load balancer
Upstream mysvr {
# The weigth parameter indicates the weight. A higher weight indicates a higher probability of being assigned.
Server 192.168.8.1x: 3128 weight = 5; # enable port 3128 for Squid on the local machine
Server 192.168.8.2x: 80 weight = 1;
Server 192.168.8.3x: 80 weight = 6;
}

Upstream mysvr2 {
# The weigth parameter indicates the weight. A higher weight indicates a higher probability of being assigned.

Server 192.168.8.x: 80 weight = 1;
Server 192.168.8.x: 80 weight = 6;
}

# First Virtual Server
Server {
# Listen to port 80 of 192.168.8.x
Listen 80;
Server_name 192.168.8.x;

# Load balancing requests with the aspx suffix
Location ~ . * \. Aspx $ {

Root/root; # define the default website root directory location of the server
Index. php index.html index.htm; # define the name of the home index file

Proxy_pass http: // mysvr; # redirect requests to the list of servers defined by mysvr

# The following are some reverse proxy configurations that can be deleted.

Proxy_redirect off;

# The backend Web server can use X-Forwarded-For to obtain the user's real IP address.
Proxy_set_header Host $ host;
Proxy_set_header X-Real-IP $ remote_addr;
Proxy_set_header X-Forwarded-For $ proxy_add_x_forwarded_for;
Client_max_body_size 10 m; # maximum number of bytes allowed for client requests per file
Client_body_buffer_size 128 k; # maximum number of bytes for the buffer proxy to buffer client requests,
Proxy_connect_timeout 90; # timeout for nginx connection to backend servers (proxy connection timeout)
Proxy_send_timeout 90; # backend server data return time (proxy sending timeout)
Proxy_read_timeout 90; # response time of the backend server after successful connection (proxy receiving timeout)
Proxy_buffer_size 4 k; # Set the buffer size for the proxy server (nginx) to save user header information
Proxy_buffers 4 32 k; # proxy_buffers buffer, if the average web page is below 32 k, this setting
Proxy_busy_buffers_size 64 k; # buffer size under high load (proxy_buffers * 2)
Proxy_temp_file_write_size 64 k; # sets the cache folder size. If it is greater than this value, it will be transmitted from the upstream Server

}

}
}

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