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Nginx Proxy Manager Security Analysis and Protection

Sep 28, 2023 pm 01:30 PM
nginxproxysecurity

Nginx Proxy Manager安全性分析与防护

Nginx Proxy Manager Security Analysis and Protection

Introduction:
In Internet applications, security has always been a crucial issue. As a powerful reverse proxy and load balancing server software, Nginx plays an important role in ensuring the security of network applications. However, with the continuous development of Internet technology and the increasing number of network attacks, how to ensure the security of Nginx Proxy Manager has become an urgent problem to be solved. This article will discuss the security analysis and corresponding protective measures of Nginx Proxy Manager to help build a more secure network environment.

1. Nginx Proxy Manager Security Analysis

  1. Unauthorized access:
    An important function of Nginx Proxy Manager is to configure the proxy server, so it must be prevented from unauthorized access. Authorized access. Common protective measures include using strong passwords for protection, restricting access to IP, etc. For example, in the Nginx configuration file, basic access control can be achieved through the following code:
location / {
  deny 192.168.1.1;
  allow 192.168.1.0/24;
  allow 10.0.0.0/16;
  deny all;
}
  1. DDOS attack:
    DDOS attack is a common network attack method. The goal is to overwhelm the server with a large number of requests, ultimately rendering the service unavailable. For DDOS attacks, the following protective measures can be taken:
  2. Use a firewall to filter illegal request traffic;
  3. Configure Nginx reverse proxy to balance the load and distribute traffic;
  4. Use Caching module to reduce server load.
  5. SQL injection attack:
    SQL injection attack is to achieve illegal operations on the database by inserting malicious SQL code into the input parameters of the application. The key to preventing SQL injection attacks is to properly filter user input. In Nginx Proxy Manager, you can use built-in modules or custom modules to filter and verify user input, such as:
# 使用内置模块
location / {
  if ($query_string ~ "(.*?)('|")(.*?)(.*)") {
    return 403;
  }
}

# 使用自定义模块
location / {
  lua_need_request_body on;

  access_by_lua_block {
    local args = ngx.req.get_post_args()
    if args and args.sql then
      ngx.exit(ngx.HTTP_FORBIDDEN)
    end
  }
}

2. Nginx Proxy Manager security protection measures

  1. Keep the software updated:
    Update the version of Nginx Proxy Manager promptly to get the latest security patches and feature fixes. Get timely notifications about version updates by regularly checking the official website and email subscriptions, and upgrade according to official recommendations.
  2. Reasonable access control:
    In the configuration file of Nginx Proxy Manager, you can restrict access to the proxy server by introducing the basic authentication module or SSL certificate. For example, you can use the following code to implement basic authentication:
location / {
  auth_basic "Restricted";
  auth_basic_user_file /etc/nginx/.htpasswd;
}
  1. Configure access logs and monitoring:
    Regularly analyze Nginx access logs to discover abnormal requests and potential attacks in a timely manner. You can use log analysis tools, such as ELK Stack, to monitor access logs in real time and set up alarm mechanisms.
  2. Use WAF protection:
    Web application firewall (WAF) can provide an additional layer of security by detecting and blocking malicious requests. You can choose mature WAF products, such as ModSecurity, and integrate them with Nginx Proxy Manager.
  3. Strengthen SSL/TLS security:
    When configuring SSL/TLS, use high-strength encryption algorithms and security certificates, and configure strict TLS protocol versions and cipher suites. In addition, the SSL configuration instructions in the Nginx configuration file also need to be carefully checked and adjusted.

Conclusion:
Nginx Proxy Manager, as a powerful reverse proxy and load balancing server software, plays an important role in dealing with the growing network attacks. By analyzing the security of Nginx Proxy Manager and implementing corresponding protective measures, it can help build a more secure and reliable network environment and provide security protection for users' online applications.

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