Edge proxy and multi-point access security in Nginx reverse proxy
With the continuous development of Internet technology, the number of website visits continues to increase. In order to ensure the performance and security of the website, reverse proxy technology has been widely used. As a high-performance reverse proxy server, Nginx has attracted much attention for its edge proxy and multi-point access security.
1. The Concept of Edge Proxy
Edge Proxy is a reverse proxy application scenario. It is mainly used to protect internal network services from external attacks. Improve the availability and performance of your internal network. Edge proxies are generally deployed at the edge of the internal network, connecting the external network and the internal network, and serve as a secure "firewall".
As a high-performance edge proxy server, Nginx can effectively protect the internal network from external attacks while improving the performance and availability of the internal network. Nginx's edge proxy is mainly implemented through reverse proxy. Reverse proxy means that after the server receives the client's request, it forwards the request to a server on the internal network for processing, and then returns the processing result to the client. The client can only see the IP address of the proxy server and cannot directly access the internal network server, thereby achieving the purpose of protecting the internal network and increasing the availability of the internal network.
2. The security of multi-point access
Multi-point access refers to multiple clients accessing a server at the same time, and its security is relatively vulnerable to attacks. Nginx provides a variety of security protection mechanisms that can effectively protect the security of multi-point access.
- IP filtering
IP filtering refers to prohibiting or allowing certain clients to access based on IP addresses. Nginx can set up IP filtering through configuration files. Only clients in the IP whitelist can access the server, and other clients are denied. This method can effectively prevent hacker attacks and improve server security.
- Access restrictions
Nginx can also protect the security of multi-point access through access restrictions. Access restriction refers to limiting the client's access frequency and amount to prevent clients from malicious attacks on the server. Nginx can implement access restrictions by setting access control lists (ACLs). Only clients that meet the access rules can access the server, and other clients are restricted from access.
- SSL Encryption
SSL encryption is a way to protect data security by encrypting it. Nginx supports SSL encryption and provides a series of security protection mechanisms, such as SSL certificate verification and client certificate verification, which can effectively protect the security of multi-point access.
3. Conclusion
As a high-performance reverse proxy server, Nginx has shown good performance and reliability in edge proxy and multi-point access security. Through reasonable configuration and use, Nginx can provide efficient and secure reverse proxy services, protect the internal network from external attacks, and ensure the security of multi-point access. Therefore, Nginx's status in the reverse proxy field has been widely recognized and applied.
The above is the detailed content of Edge proxy and multi-point access security in Nginx reverse proxy. For more information, please follow other related articles on the PHP Chinese website!

Question: How to start Nginx? Answer: Install Nginx Startup Nginx Verification Nginx Is Nginx Started Explore other startup options Automatically start Nginx

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.

To shut down the Nginx service, follow these steps: Determine the installation type: Red Hat/CentOS (systemctl status nginx) or Debian/Ubuntu (service nginx status) Stop the service: Red Hat/CentOS (systemctl stop nginx) or Debian/Ubuntu (service nginx stop) Disable automatic startup (optional): Red Hat/CentOS (systemctl disabled nginx) or Debian/Ubuntu (syst

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.

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.

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.

In Linux, use the following command to check whether Nginx is started: systemctl status nginx judges based on the command output: If "Active: active (running)" is displayed, Nginx is started. If "Active: inactive (dead)" is displayed, Nginx is stopped.

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.


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