Nginx日志_log_format默认参数解释
Linux模拟HTTP请求：
[[email protected]_0_2_centos nginx]# curl http://localhost?wd=wwl\&lover=xq
access.log：
127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（1）$remote_addr
客户端请求地址：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（2）$remote_user
客户端请求验证的用户名：这里没有，空
127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（3）$time_local
本地时间：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（4）$request
完整的原始请求行：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（5）$status
服务端响应的状态码：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（6）$body_bytes_sent
服务端返回给客户端字节大小：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（7）$http_referer
告诉服务端我是从哪个页面链接过来的：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（8）$http_user_agent
请求的具体客户端是什么（IE、Chrome、FireFox等）：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"
（9）$http_x_forwarded_for
客户端请求的真实IP，如果代理存在，即有值，否则没值：127.0.0.1 - - [10/Dec/2018:20:06:48 +0800] "GET /?wd=wwl&lover=xq HTTP/1.1" 200 635 "-" "curl/7.29.0" "-" "wwl"-"wd=wwl&lover=xq"-"-"-"-"-"localhost"-"Sat, 08 Dec 2018 04:13:40 GMT"