Nginx Proxy Manager configuration analysis and optimization

Nginx Proxy Manager configuration analysis and optimization

Overview:

Nginx Proxy Manager is a reverse proxy management tool based on Nginx that can help us Easily configure and manage reverse proxy servers. In the process of using Nginx Proxy Manager, we can improve the performance and security of the server by parsing and optimizing its configuration.

Configuration analysis:

1. Configuration file location and structure:

The configuration file of Nginx Proxy Manager is located in the /etc/nginx/conf.d directory , the configuration file of each reverse proxy ends with .conf. The configuration file mainly contains the IP address, port number, domain name and other information of the proxy server.

2. Basic configuration item analysis:

In the configuration file, we can see some basic configuration items, as follows:

server {

listen 80;
server_name example.com;

location / {
    proxy_pass http://backend;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
}

}

Among them, listen specifies the listening port number; server_name specifies the domain name; location specifies the URL path; proxy_pass specifies the back-end server address to be forwarded; proxy_set_header specifies setting the request header information.

3. Advanced configuration item analysis:

In the configuration file of Nginx Proxy Manager, some advanced configuration items are also supported to optimize the performance and security of the server. The following are some common advanced configuration items:

• keepalive_timeout: Set the retention time of the connection with the backend server, the default is 75s. This value can be adjusted appropriately to improve performance.
• worker_connections: Set the maximum number of connections per worker process, the default is 1024. This value can be adjusted appropriately to improve performance.
• client_max_body_size: Set the maximum volume for receiving client requests, the default is 1m. You can set a larger value according to actual needs to support the upload of large files.
• limit_req_zone: Set limit request rate and number of connections to prevent malicious requests and DDoS attacks.

4. SSL/TLS configuration:

Nginx Proxy Manager also supports the configuration of SSL/TLS to provide secure communication. The following are some common SSL/TLS configuration items:

server {

listen 443 ssl;
server_name example.com;

ssl_certificate /etc/nginx/ssl/cert.crt;
ssl_certificate_key /etc/nginx/ssl/cert.key;

location / {
    proxy_pass http://backend;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
}

}

Among them, ssl_certificate and ssl_certificate_key specify the path to the SSL certificate. By configuring SSL/TLS, we can secure data transmission between the client and the proxy server.

Configuration optimization:

In order to further improve the performance and security of Nginx Proxy Manager, we can perform some optimization configurations.

1. Cache configuration:

Nginx Proxy Manager supports HTTP cache configuration, which can cache frequently accessed static resources locally to reduce response time and bandwidth usage. The following are some common cache configuration items:

server {

listen 80;
server_name example.com;

location / {
    proxy_pass http://backend;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_cache my_cache;
    proxy_cache_valid 200 1h;
}

location ~* .(css|js|gif|jpg|jpeg|png)$ {
    proxy_cache my_cache;
    proxy_cache_valid 200 1d;
}

location ~* .(woff|ttf|svg|eot)$ {
    proxy_pass http://backend;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_cache my_cache;
    proxy_cache_valid 200 30d;
}

}

Among them, proxy_cache specifies the cache name, and proxy_cache_valid specifies the cache validity time.

2. Load balancing configuration:

In order to improve the performance and availability of the server, we can use the load balancing function of Nginx Proxy Manager to distribute requests to multiple backend servers superior. The following are some common load balancing configuration items:

upstream backend {

server backend1.example.com;
server backend2.example.com;
server backend3.example.com;

}

Among them, backend1, backend2 and backend3 are the addresses of the backend servers.

3. Security configuration:

In order to improve the security of the server, we can use the security configuration items of Nginx Proxy Manager, as shown below:

server {

listen 80;
server_name example.com;

location / {
    proxy_pass http://backend;
    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_hide_header X-Powered-By;
    proxy_hide_header Server;
    proxy_next_upstream error timeout http_503;
}

}

Among them, proxy_set_header specifies the request header information, proxy_hide_header specifies the hidden response header information, and proxy_next_upstream specifies continuing to the next backend when an error, timeout or http_503 is encountered. The server forwards the request.

Conclusion:

By analyzing and optimizing the configuration of Nginx Proxy Manager, we can improve the performance and security of the server. In actual applications, appropriate configuration adjustments can be made according to requirements, and tested and verified in the test environment. I hope this article can be helpful to everyone when using Nginx Proxy Manager.

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