如何优化nginx配置文件以提高服务器性能

# 启用gzip压缩
gzip on;
gzip_comp_level 2;
gzip_min_length 1024;
gzip_types text/plain text/css application/javascript application/xml;
gzip_vary on;

# 调整keepalive连接
keepalive_timeout 60;
keepalive_requests 100;

# 调整文件缓存
open_file_cache max=1000 inactive=20s;
open_file_cache_valid 30s;
open_file_cache_min_uses 2;
open_file_cache_errors off;

# 处理大量请求
worker_processes auto;
worker_cpu_affinity auto;
worker_rlimit_nofile 65535;

# 调整日志级别
error_log /var/log/nginx/error.log debug;

如何使用nginx反向代理实现负载均衡

http {
    upstream backend {
        server backend1.example.com;
        server backend2.example.com;
        server backend3.example.com;
    }
    
    server {
        listen 80;
        
        location / {
            proxy_pass http://backend;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
        }
    }
}

如何配置nginx实现SSL/TLS加密通信

server {
    listen 443 ssl http2;
    server_name example.com;

    ssl_certificate /path/to/certificate.pem;
    ssl_certificate_key /path/to/private_key.pem;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    ssl_stapling on;
    ssl_stapling_verify on;

    # 配置其他参数...
}

如何使用nginx实现URL重写和转发

location /news/ {
    rewrite ^/news/(.*)$ /$1 break;
    proxy_pass http://backend;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
}

如何使用nginx限制访问频率和IP黑名单

http {
    limit_req_zone $binary_remote_addr zone=one:10m rate=10r/s;
    
    server {
        location / {
            limit_req zone=one burst=5 nodelay;
            deny 192.168.1.1;
            allow all;
        }
    }
}