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Nginx related

1 Overview

Nginx est servitor interretialis cum magno concursu et magno onere facultatum, et habet sequentia commoda:

1. Stabilis est, minus ratio facultatum consumit, memoriamque minuit.
2. Involucrum programmatum involucrum parvum et valde customizable est.
3. Facultatem habet altam concursum et petita 30,000-50,000 pertractare potest.

Ut servo telae pro staticis paginis, Nginx maxime considerat suum effectum et magnam attentionem ad efficientiam attendit.

Configurationis fasciculus (litulus fundamentalis conformatio):

Scapus configurationis maxime dividitur in tres caudices: globum, eventus, clausus et in scandalum.

# 全局块
worker_processes  1;  
# 事件区块
events {
    worker_connections  1024;
}
# http区块
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       80;
        server_name  localhost; #改为IP地址
        # 反向代理
        location / {
            root   html; #存放目录
            index  index.html index.htm;
        }
        # 错误页面路由
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

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global obstructionum: Solebat condere altiore figurae niginx servi, including processum numeri, processum ID, iter repositionis, iter repositionis stipes, usoris coetus et alia indicia.

certe angustos: Conformationes reponendas ad niginx servientis et usoris nexus pertinentes.

http obstructionum ": Solebant deservire accessum ad imperium et tertiam partem figurarum, inclusa globi globalis et caudicis servientis.

2. Reverse procuratorem

2.1 Reverse procuratorem related

Cum accessus a cliente, nulla conformatio accedere debet. Procurator vicissim petitionem clientis recipiet, tum vicissim procurator accessum eliget ac data clienti data reddet.Commodum hoc est quod per adversa procuratorem praestari potestIP servo realem celare et procuratorem praebere IP。

Configurationis fasciculus:

#接口端
location /police/ {
    proxy_pass   http://192.168.1.1:8852/police/;
    proxy_redirect default;
    proxy_http_version 1.1;
    proxy_connect_timeout   60;
    proxy_send_timeout      60;
    proxy_read_timeout      90;
}

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Si interfaciem incipias cum /polilis postulatione occurras, accessum http://192.168.1.1:8852/police/.

Si contrarium procuratorem pro pluribus portibus definire vis, procuratorem capitis (locus /police/) mutare et accessum IP oratio (proxy_pass http://192.168.1.1:8852/police/;).

2.2 Procurator

Si usores in retis locali interreti vis accedere interreti et servo per procuratorem accedere, procuratori procuratori indigent.

3. Load conparatio

Consequi onus conpensatione postulationum mutando ne uni servo mittatur ad plures ministros mitti.

#动态服务器组
upstream dynamic_zuoyu {
    server localhost:8080;  #tomcat 7.0
    server localhost:8081;  #tomcat 8.0
    server localhost:8082;  #tomcat 8.5
    server localhost:8083;  #tomcat 9.0
    }
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Quattuor modi fundamentales sunt ad libramen oneris consequendum: modus suffragandi, modus pondus pondus, ip_hash, least_conn.

3.1 exsequendam modum

1. Modus suffragii (default);

   Unaquaeque petitio unicuique servo in ordinem chronologicum singillatim tribuitur.

   #动态服务器组
   upstream dynamic_zuoyu {
       server localhost:8080;  #tomcat 7.0
       server localhost:8081;  #tomcat 8.0
       server localhost:8082;  #tomcat 8.5
       server localhost:8083;  #tomcat 9.0
       	# server 参数
       	#fail_timeout 最大失败时间
       	#max_fails	设置在fail_timeout参数设置的时间内最大失败次数,超过则认为停机
       	#fail_time	服务器会被认为停机的时间长度,默认为10s
       	#backup	标记该服务器为备用服务器，当主服务器停止时，请求会被发送到它这里
       	#down	标记服务器永久停机
   }
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2. weight weight (graved suffragium);

   Specificare probabilitatem suffragationem, et accessum moderari per pondus ponderis.

   #动态服务器组
   upstream dynamic_zuoyu {
       server localhost:8080   weight=2;  #tomcat 7.0
       server localhost:8081;  #tomcat 8.0
       server localhost:8082   backup;  #tomcat 8.5
       server localhost:8083   max_fails=3 fail_timeout=20s;  #tomcat 9.0
   }
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3. ip_hash：

   Petitio discursum est per algorithmum detrahendum. Cum usor rursus accesserit ministrantis, automatice collocabitur. Quaelibet petitio partita est secundum Nullam exitum accessus IP, permittens unumquemque usorem certum habere accessum ad finem server-postremum. .

   #动态服务器组
   upstream dynamic_zuoyu {
       ip_hash;    #保证每个访客固定访问一个后端服务器
       server localhost:8080   weight=2;  #tomcat 7.0
       server localhost:8081;  #tomcat 8.0
       server localhost:8082;  #tomcat 8.5
       server localhost:8083   max_fails=3 fail_timeout=20s;  #tomcat 9.0
   }
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4. least_conn:

   Rogationem transmittere ad servo backend cum paucioribus necessariis.

   #动态服务器组
   upstream dynamic_zuoyu {
       least_conn;    #把请求转发给连接数较少的后端服务器
       server localhost:8080   weight=2;  #tomcat 7.0
       server localhost:8081;  #tomcat 8.0
       server localhost:8082 backup;  #tomcat 8.5
       server localhost:8083   max_fails=3	fail_timeout=20s;  #tomcat 9.0
   }
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4. De separatione motus et statice

Paginae dynamicae et paginae staticae a diversis servientibus parsed.

Configurationis fasciculus:

#访问静态资源服务器
location /image/ {
  root   /var/filecenter/;
}
location /static/ {
  root   /var/filecenter/;
}
location /car/ {
  root   /var/filecenter/;
}
location ~ .*.(html|htm|gif|jpg|jpeg|bmp|png|ico|js|css)$ {
  root /Users/dalaoyang/Downloads/static;
}
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#动态页面访问后台服务
#接口端
        location /police/ {
            proxy_pass   http://192.168.1.1:8852/police/;
            proxy_redirect default;
            proxy_http_version 1.1;
            proxy_connect_timeout   60;
            proxy_send_timeout      60;
            proxy_read_timeout      90;
        }
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5. Mandata communia

yum install nginx	安装nginx
netstat -anput|grep nginx 查看nginx进程
netstat -nltp	查看服务器端口占用情况
cd /usr/local/nginx/sbin/
./nginx  启动
./nginx -s stop  停止
./nginx -s quit  安全退出
./nginx -s reload  重新加载配置文件  如果我们修改了配置文件，就需要重新加载。
ps aux|grep nginx  查看nginx进程
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6. Universa configuratione file

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ .php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ .php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}


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