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四层Nginx代理日志配置

news 2025/8/26 7:16:30

NGINX 4层代理（stream模块）的日志配置需要在stream块中进行设置。以下是详细的配置方法：

基本日志配置

stream {# 定义日志格式log_format proxy '$remote_addr [$time_local] ''$protocol $status $bytes_sent $bytes_received ''$session_time "$upstream_addr" ''"$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"';# 设置访问日志access_log /var/log/nginx/stream.log proxy;# 设置错误日志error_log /var/log/nginx/stream_error.log;# 代理配置示例upstream backend {server 192.168.1.10:3306;server 192.168.1.11:3306;}server {listen 3306;proxy_pass backend;proxy_timeout 1s;proxy_responses 1;proxy_bind $remote_addr transparent;}
}

常用日志变量

在stream模块中可以使用的日志变量包括：

$remote_addr - 客户端IP地址
$time_local - 本地时间
$protocol - 协议类型（TCP/UDP）
$status - 连接状态
$bytes_sent - 发送字节数
$bytes_received - 接收字节数
$session_time - 会话持续时间
$upstream_addr - 上游服务器地址
$upstream_bytes_sent - 向上游发送的字节数
$upstream_bytes_received - 从上游接收的字节数
$upstream_connect_time - 连接上游服务器的时间

高级配置示例

stream {# 详细的日志格式log_format detailed '$remote_addr - [$time_local] $protocol $status ''$bytes_sent $bytes_received $session_time ''upstream: $upstream_addr ''up_sent: $upstream_bytes_sent ''up_received: $upstream_bytes_received ''up_connect_time: $upstream_connect_time';# 不同服务使用不同日志文件map $server_port $log_file {3306 /var/log/nginx/mysql_proxy.log;5432 /var/log/nginx/postgres_proxy.log;6379 /var/log/nginx/redis_proxy.log;default /var/log/nginx/stream_default.log;}# MySQL代理server {listen 3306;proxy_pass mysql_backend;access_log /var/log/nginx/mysql_proxy.log detailed;error_log /var/log/nginx/mysql_error.log;}# Redis代理server {listen 6379;proxy_pass redis_backend;access_log /var/log/nginx/redis_proxy.log detailed;error_log /var/log/nginx/redis_error.log;}
}