nginx 安装

一. gcc 安装
安装 nginx 需要先将官网下载的源码进行编译,编译依赖 gcc 环境,如果没有 gcc 环境,则需要安装:

yum install gcc-c++

二. PCRE pcre-devel 安装
PCRE(Perl Compatible Regular Expressions) 是一个Perl库,包括 perl 兼容的正则表达式库。nginx 的 http 模块使用 pcre 来解析正则表达式,所以需要在 linux 上安装 pcre 库,pcre-devel 是使用 pcre 开发的一个二次开发库。nginx也需要此库。命令:

yum install -y pcre pcre-devel

三. zlib 安装
zlib 库提供了很多种压缩和解压缩的方式, nginx 使用 zlib 对 http 包的内容进行 gzip ,所以需要在 Centos 上安装 zlib 库。

yum install -y zlib zlib-devel

四. OpenSSL 安装
OpenSSL 是一个强大的安全套接字层密码库,囊括主要的密码算法、常用的密钥和证书封装管理功能及 SSL 协议,并提供丰富的应用程序供测试或其它目的使用。
nginx 不仅支持 http 协议,还支持 https(即在ssl协议上传输http),所以需要在 Centos 安装 OpenSSL 库。

yum install -y openssl openssl-devel

官网下载

1.直接下载.tar.gz安装包,地址:https://nginx.org/en/download.html

wget -c https://nginx.org/download/nginx-1.20.0.tar.gz

tar -zxvf nginx-1.20.1.tar.gz

mv nginx-1.20.1 nginx 改名字

使用默认配置:

./configure

make

make install

cd /usr/local/nginx/sbin/

./nginx

./nginx -s stop

./nginx -s quit

./nginx -s reload

ps aux|grep nginx  查看进程

先停止再启动(推荐):
对 nginx 进行重启相当于先停止再启动,即先执行停止命令再执行启动命令。如下:

./nginx -s quit
./nginx

2.重新加载配置文件:
当 ngin x的配置文件 nginx.conf 修改后,要想让配置生效需要重启 nginx,使用-s reload不用先停止 ngin x再启动 nginx 即可将配置信息在 nginx 中生效,如下:
./nginx -s reload

启动成功后,在浏览器可以看到这样的页面:

系统下怎么配置多个conf文件。

step 1:在nginx.conf文件所在目录新建conf.d目录,即mkdir conf.d,为确保权限能够访问到,so chmod 777 conf.d

step 2:编辑nginx.conf文件,内容为:
include /usr/local/nginx/conf/conf.d/*.conf;

step 3:在conf.d目录下随便写个.conf文件, 内容为:

server{
listen 8888;
server_name localhost;

location / {
root /usr/local/nginx/html;
index index.html index.htm;
}
}

目录 nginx.conf

#user  nobody;
worker_processes  4;

#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;
    include /usr/local/nginx/conf/conf.d/*.conf;
    #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;
    #    }
    #}

}

conf.d 下的目录

test.conf,ntest.conf

server{
listen 8001;
server_name localhost;

location / {
proxy_pass http://test_server;
}
}
upstream test_server{
server 192.168.0.55:8002;
server 192.168.0.55:8003;
}





server{
listen 9001;
server_name localhost;

location / {
proxy_pass http://ntest_server;
}
}
upstream ntest_server{
server 192.168.0.55:9002;
server 192.168.0.55:9003;
}

 浏览器请求监听的端口 就会映射到设定的2个端口

原文地址:https://www.cnblogs.com/elsons/p/15334248.html