Home Operation and Maintenance Nginx How to build a reverse proxy for Nginx server

How to build a reverse proxy for Nginx server

May 15, 2023 am 08:40 AM
nginx

Part 1: Installation

1 Create users and groups

  /usr/sbin/groupadd www 
  /usr/sbin/useradd -g www www
Copy after login

2 Install pcre to enable nginx reverse proxy support rewrite is convenient for future needs

  wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-7.8.tar.gz 
  tar zxvf pcre-7.8.tar.gz 
  cd pcre-7.8/ 
  ./configure 
  make && make install
Copy after login

3 Install nginx reverse proxy

  wget http://sysoev.ru/nginx/nginx-0.7.58.tar.gz 
  tar zxvf nginx-0.7.58.tar.gz 
  cd nginx-0.7.58/ 
  ./configure --user=www --group=www --prefix=/usr/
  local/webserver/nginx --with-http_stub_status_module 
  --with-http_ssl_module --with-cc-opt='-o2' --with-cpu-opt
  =opteron 
  make && make install
Copy after login

Note the --with-cc-opt='-o2' --with-cpu- opt=opteron This is compiler optimization. Currently, the most commonly used one is -02 instead of 3. The latter corresponds to the CPU model.

Part 2: Configuration and Optimization Configuration File

1 nginx.conf Configuration File:

  user www www; 
  worker_processes 4; 
  # [ debug | info | notice | warn | error | crit ] 
  error_log /usr/local/webserver/nginx/logs/nginx_error.log crit; 
  pid /usr/local/webserver/nginx/nginx.pid; 
  #specifies the value for maximum file descriptors that 
  can be opened by this process. 
  worker_rlimit_nofile 51200; 
  events 
  { 
  use epoll; 
  worker_connections 51200; 
  } 
  http 
  { 
  include mime.types; 
  default_type application/octet-stream; 
  source_charset gb2312; 
  server_names_hash_bucket_size 256; 
  client_header_buffer_size 256k; 
  large_client_header_buffers 4 256k; 
  #size limits 
  client_max_body_size 50m; 
  client_body_buffer_size 256k; 
  client_header_timeout 3m; 
  client_body_timeout 3m; 
  send_timeout 3m; 
  #参数都有所调整.目的是解决代理过程中出现的一些502 499错误  
  sendfile on; 
  tcp_nopush on; 
  keepalive_timeout 120; #参数加大,以解决做代理时502错误 
  tcp_nodelay on; 
  include vhosts/upstream.conf; 
  include vhosts/bbs.linuxtone.conf;  
  }
Copy after login

2 upstream.conf configuration file (this is also the configuration method for load

  upstream.conf 
  upstream bbs.linuxtone.com { 
  server 192.168.1.4:8099; 
  }
Copy after login

3 site configuration file

  bbs.linuxtone.conf 
  server 
  { 
  listen 80; 
  server_name bbs.linuxtone.conf; 
  charset gb2312; 
  index index.html index.htm; 
  root /date/wwwroot/linuxtone/; 
  location ~ ^/nginxstatus/ { 
  stub_status on; 
  access_log off; 
  } 
  location / { 
  root /date/wwwroot/linuxtone/; 
  proxy_redirect off ; 
  proxy_set_header host $host; 
  proxy_set_header x-real-ip $remote_addr; 
  proxy_set_header remote-host $remote_addr; 
  proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for; 
  client_max_body_size 50m; 
  client_body_buffer_size 256k; 
  proxy_connect_timeout 30; 
  proxy_send_timeout 30; 
  proxy_read_timeout 60; 
  proxy_buffer_size 256k; 
  proxy_buffers 4 256k; 
  proxy_busy_buffers_size 256k; 
  proxy_temp_file_write_size 256k; 
  proxy_next_upstream error timeout invalid_header http_500 
  http_503 http_404; 
  proxy_max_temp_file_size 128m; 
  proxy_pass http://bbs.linuxtone.com; 
  }
Copy after login

The parameters have been adjusted. The purpose is to solve Some 502 499 errors that occur during the proxy process

  #add expires header for static content 
  location ~* \.(jpg|jpeg|gif|png|swf)$ { 
  if (-f $request_filename) { 
  root /date/wwwroot/linuxtone/; 
  expires 1d; 
  break; 
  } 
  } 
  log_format access '$remote_addr - $remote_user [$time_local] "$request" ' 
  '$status $body_bytes_sent "$http_referer" ' 
  '"$http_user_agent" $http_x_forwarded_for'; 
  access_log /exp/nginxlogs/bbs.linuxtone_access.log access; 
  }
Copy after login

Common commands
Let’s take a look at some common commands for nginx reverse proxy

proxy_pass command
Syntax

  proxy_pass  [url | upstream]
Copy after login

Function
This directive is used to set the proxy server port or socket, and the url

proxy_redirect directive
Grammar

  proxy_redirect  [off | default | redirect replacement]
Copy after login

Function
This command is used to change the "location" and "refresh" in the response header of the proxy server
Supplement:
I haven't seen the effect of this command yet Yes, it is all off in the actual settings. If you know anything about it, please leave a message on the blog to guide me

proxy_next_upstream command
Syntax

Copy code The code is as follows :

proxy_next_upstream [error|timeout|invalid_header|http_500|http_502|http_503|http_504|http_404|off]

Function
This directive is used to set the situation under which the Forward the request to the next server. In the upstream load balancing proxy server pool, assuming that a server at the backend cannot be accessed or returns a specified error response code, you can use this instruction to forward the request to the next server in the pool.
Parameter description

error: If an error occurs when connecting to the server, when sending a request, or when reading the response message
timeout: If an error occurs when connecting to the server, when transmitting a request, or when reading the response message from the back-end server Timeout
invalid_header: The backend server returns an empty or incorrect response
http_[500|502|503|504|404]: The backend server returns the specified response status code
off: Disables the request Forward to the next backend server

proxy_set_header directive
Syntax

  proxy_set_header header value
Copy after login

Function
This directive allows redefining or adding header lines to be forwarded to In the request information of the proxy server, its value can be text, a variable, or a combination of text and variables

The above is the detailed content of How to build a reverse proxy for Nginx server. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to solve nginx403 How to solve nginx403 Apr 14, 2025 am 10:33 AM

How to fix Nginx 403 Forbidden error? Check file or directory permissions; 2. Check .htaccess file; 3. Check Nginx configuration file; 4. Restart Nginx. Other possible causes include firewall rules, SELinux settings, or application issues.

How to solve nginx403 error How to solve nginx403 error Apr 14, 2025 pm 12:54 PM

The server does not have permission to access the requested resource, resulting in a nginx 403 error. Solutions include: Check file permissions. Check the .htaccess configuration. Check nginx configuration. Configure SELinux permissions. Check the firewall rules. Troubleshoot other causes such as browser problems, server failures, or other possible errors.

How to start nginx in Linux How to start nginx in Linux Apr 14, 2025 pm 12:51 PM

Steps to start Nginx in Linux: Check whether Nginx is installed. Use systemctl start nginx to start the Nginx service. Use systemctl enable nginx to enable automatic startup of Nginx at system startup. Use systemctl status nginx to verify that the startup is successful. Visit http://localhost in a web browser to view the default welcome page.

How to solve nginx304 error How to solve nginx304 error Apr 14, 2025 pm 12:45 PM

Answer to the question: 304 Not Modified error indicates that the browser has cached the latest resource version of the client request. Solution: 1. Clear the browser cache; 2. Disable the browser cache; 3. Configure Nginx to allow client cache; 4. Check file permissions; 5. Check file hash; 6. Disable CDN or reverse proxy cache; 7. Restart Nginx.

How to configure nginx in Windows How to configure nginx in Windows Apr 14, 2025 pm 12:57 PM

How to configure Nginx in Windows? Install Nginx and create a virtual host configuration. Modify the main configuration file and include the virtual host configuration. Start or reload Nginx. Test the configuration and view the website. Selectively enable SSL and configure SSL certificates. Selectively set the firewall to allow port 80 and 443 traffic.

How to check whether nginx is started How to check whether nginx is started Apr 14, 2025 pm 01:03 PM

How to confirm whether Nginx is started: 1. Use the command line: systemctl status nginx (Linux/Unix), netstat -ano | findstr 80 (Windows); 2. Check whether port 80 is open; 3. Check the Nginx startup message in the system log; 4. Use third-party tools, such as Nagios, Zabbix, and Icinga.

How to check the running status of nginx How to check the running status of nginx Apr 14, 2025 am 11:48 AM

The methods to view the running status of Nginx are: use the ps command to view the process status; view the Nginx configuration file /etc/nginx/nginx.conf; use the Nginx status module to enable the status endpoint; use monitoring tools such as Prometheus, Zabbix, or Nagios.

How to configure load balancing in nginx How to configure load balancing in nginx Apr 14, 2025 am 08:33 AM

How to configure Nginx for load balancing? Defines the upstream server pool and specifies the server IP and port. Define virtual hosts, listen for connections and forward them to the upstream pool. Specify the location, match the request and forward it to the upstream pool.

See all articles