• nginx优化


    一、nginx日志文件配置

    1.log_format 日志格式语法

    log_format name [format ....]

    2.默认配置文件的日志格式

    [root@ping ~]# sed -n '18,20p' /etc/nginx/nginx.conf 
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
    '$status $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';
    main:是日志格式的名字
    $remote_addr:是客户端访问nginx服务的IP地址
    $remote_user:是客户端用户的名称
    $time_local:是客户端访问的nginx服务的时间和时区
    $request:是客户端访问的nginx服务的URL地址和HTTP协议
    $status:是客户端访问的nginx服务请求状态码如200,404;
    $body_bytes_sent:是nginx服务发送给客户端的文件大小;
    $http_referer:是客户端访问的nginx服务,从那个网站的页面访问
    $http_user_agent:是客户端的浏览器相关信息
    $http_x_forwarded_for:客户端IP地址

    3.查看日志文件

    [root@ping ~]# tail -1 /var/log/nginx/access.log 
    192.168.100.1 - - [08/Mar/2018:19:53:03 +0800] "GET /favicon.ico HTTP/1.1" 404 571 "http://192.168.100.6/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36" "-"

    二、日志切割

    1.将nginx访问日志重命名

    [root@ping ~]# mv /var/log/nginx/access.log /var/log/nginx/access.log-`date +%F`-v1

    2.查看nginx访问日志的大小

    [root@ping ~]# ls -lh /var/log/nginx/
    -rw-r--r-- 1 nginx root 0 3月 8 20:09 access.log
    -rw-r----- 1 nginx adm 415 3月 8 19:53 access.log-2018-03-08-v1
    -rw-r----- 1 nginx adm 549 3月 8 19:53 error.log

    3.查看nginx主进程和工作进程

    [root@ping ~]# ps -ef | grep nginx
    root 1939 1 0 19:50 ? 00:00:00 nginx: master process nginx
    nginx 1940 1939 0 19:50 ? 00:00:00 nginx: worker process
    root 2074 1763 0 20:08 pts/0 00:00:00 grep --color=auto nginx

    4.让nginx重新生成一个新的日志文件

    [root@ping ~]# kill -USR1 1939

    5.查看nginx访问日志是否切割成功

    [root@ping ~]# ls -lh /var/log/nginx/
    -rw-r--r-- 1 nginx root 950 3月 8 20:09 access.log
    -rw-r----- 1 nginx adm 415 3月 8 19:53 access.log-2018-03-08-v1
    -rw-r----- 1 nginx adm 549 3月 8 19:53 error.log
    

      

    三、隐藏nginx的版本

    1.查看http header相关信息

    [root@ping ~]# curl -I http://192.168.100.6
    HTTP/1.1 200 OK
    Server: nginx/1.13.8
    Date: Thu, 08 Mar 2018 12:21:54 GMT
    Content-Type: text/html
    Content-Length: 612
    Last-Modified: Wed, 03 Jan 2018 18:15:30 GMT
    Connection: keep-alive
    ETag: "5a4d1dc2-264"
    Accept-Ranges: bytes  

    2.查看nginx配置文件是否关闭隐藏版本号

    [root@ping ~]# sed -n '15p' /etc/nginx/nginx.conf 
    server_tokens off; 

    3.nginx重新读取配置文件

    [root@ping ~]# nginx -s reload

    4.再次查看http header相关信息

    [root@ping ~]# curl -I http://192.168.100.6
    HTTP/1.1 200 OK
    Server: nginx
    Date: Thu, 08 Mar 2018 12:23:44 GMT
    Content-Type: text/html
    Content-Length: 612
    Last-Modified: Wed, 03 Jan 2018 18:15:30 GMT
    Connection: keep-alive
    ETag: "5a4d1dc2-264"
    Accept-Ranges: bytes
    

      

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  • 原文地址:https://www.cnblogs.com/pingzhe/p/8530640.html
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