释放双眼，带上耳机，听听看~！
1.安装先决条件：
1.1.安装nginx前，查看是否关闭防火墙和selinux安全
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2Permissive
3[root@node2 ~]# systemctl status firewalld
4● firewalld.service - firewalld - dynamic firewall daemon
5 Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
6 Active: inactive (dead)
7 Docs: man:firewalld(1)
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1.2 .安装yum-utils，这是一个与yum集成的实用程序集合，通过多种方式扩展其本机特性
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3依赖关系解决
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5=================================================================================
6 Package 架构 版本 源 大小
7=================================================================================
8正在安装:
9 yum-utils noarch 1.1.31-45.el7 cnetos 119 k
10为依赖而安装:
11 libxml2-python x86_64 2.9.1-6.el7_2.3 cnetos 247 k
12 python-chardet noarch 2.2.1-1.el7_1 cnetos 227 k
13 python-kitchen noarch 1.1.1-5.el7 cnetos 267 k
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15事务概要
16=================================================================================
17安装 1 软件包 (+3 依赖软件包)
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2.编辑/etc/yum.repos.d/nginx.repo，设置yum存储库
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2[nginx-stable]
3name=nginx stable repo
4baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
5gpgcheck=1
6enabled=1
7gpgkey=https://nginx.org/keys/nginx_signing.key
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9[nginx-mainline]
10name=nginx mainline repo
11baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
12gpgcheck=1
13enabled=0
14gpgkey=https://nginx.org/keys/nginx_signing.key
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3.是否使用主线nginx包，这里就使用最新版本的nginx包，默认情况下，使用稳定nginx包的存储库
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4.安装nginx
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3依赖关系解决
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5=================================================================================
6 Package 架构 版本 源 大小
7=================================================================================
8正在安装:
9 nginx x86_64 1:1.17.2-1.el7.ngx nginx-mainline 767 k
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11事务概要
12=================================================================================
13安装 1 软件包
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5.查看版本信息
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2nginx version: nginx/1.17.2
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6.更改所拥有者和所属组
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2nginx: /usr/sbin/nginx /usr/lib64/nginx /etc/nginx /usr/share/nginx /usr/share/man/man8/nginx.8.gz
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5[root@node2 ~]# chown -R nginx:nginx /etc/nginx/ #修改所有拥有者和所属组的nginx的配置文件
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7[root@node2 ~]# chown -R nginx:nginx /usr/share/nginx/html #修改所有拥有者和所属组的nginx的页面存放位置
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7.配置文件
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4user nginx; #设置用户
5worker_processes 4; #工作进程数，一般设置为cpu核心数
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7error_log /var/log/nginx/error.log warn; #制定日志路径，级别。这个设置可以放入全局块，http块，server块，级别以此为：debug|info|notice|warn|error|crit|alert|emerg
8pid /var/run/nginx.pid; #指定nginx进程运行文件存放地址
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11events {
12 worker_connections 1024; ##最大连接数，默认为512
13}
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16http {
17 include /etc/nginx/mime.types; #文件扩展名与文件类型映射表
18 default_type application/octet-stream; #默认文件类型，默认为text/plain
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20 log_format main '$remote_addr - $remote_user [$time_local] "$request" '
21 '$status $body_bytes_sent "$http_referer" '
22 '"$http_user_agent" "$http_x_forwarded_for"'; #自定义格式
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24 access_log /var/log/nginx/access.log main; #combined为日志格式的默认值
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26 sendfile on; #允许sendfile方式传输文件，默认为off，可以在http块，server块，location块。
27 #tcp_nopush on;
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29 keepalive_timeout 65; #连接超时时间，默认为75s，可以在http，server，location块。
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31 #gzip on;
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33 include /etc/nginx/conf.d/*.conf;
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35server {
36 listen 800; #监听端口
37 server_name localhost; #监听地址
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39 location / { #首页
40 root /usr/share/nginx/html;
41 index index.html index.htm;
42 }
43 error_page 500 502 503 504 /50x.html; #错误页
44 location = /50x.html {
45 root /usr/share/nginx/html;
46 }
47 }
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49}
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7.1.端口被占用，需要修改端口
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2● nginx.service - nginx - high performance web server
3 Loaded: loaded (/usr/lib/systemd/system/nginx.service; disabled; vendor preset: disabled)
4 Active: failed (Result: exit-code) since 二 2019-08-13 19:15:08 CST; 46s ago
5 Docs: http://nginx.org/en/docs/
6 Process: 2361 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=1/FAILURE)
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88月 13 19:15:06 node2 nginx[2361]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
98月 13 19:15:06 node2 nginx[2361]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
108月 13 19:15:07 node2 nginx[2361]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
118月 13 19:15:07 node2 nginx[2361]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
128月 13 19:15:08 node2 nginx[2361]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
138月 13 19:15:08 node2 nginx[2361]: nginx: [emerg] still could not bind()
148月 13 19:15:08 node2 systemd[1]: nginx.service: control process exited, code=exited status=1
158月 13 19:15:08 node2 systemd[1]: Failed to start nginx - high performance web server.
168月 13 19:15:08 node2 systemd[1]: Unit nginx.service entered failed state.
178月 13 19:15:08 node2 systemd[1]: nginx.service failed.
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2[root@node2 conf.d]# vi default.conf
3server {
4 listen 800; #修改监听端口
5 server_name localhost;
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7 #charset koi8-r;
8 #access_log /var/log/nginx/host.access.log main;
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10 location / {
11 root /usr/share/nginx/html;
12 index index.html index.htm;
13 }
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15 #error_page 404 /404.html;
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17 # redirect server error pages to the static page /50x.html
18 #
19 error_page 500 502 503 504 /50x.html;
20 location = /50x.html {
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22 # proxy the PHP scripts to Apache listening on 127.0.0.1:80
23 #
24 #location ~ \.php$ {
25 # proxy_pass http://127.0.0.1;
26 #}
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28 # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
29 #
30 #location ~ \.php$ {
31 # root html;
32 # fastcgi_pass 127.0.0.1:9000;
33 # fastcgi_index index.php;
34 # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
35 # include fastcgi_params;
36 #}
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38 # deny access to .htaccess files, if Apache's document root
39 # concurs with nginx's one
40 #
41 #location ~ /\.ht {
42 # deny all;
43 #}
44}
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8.启动nginx服务
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3[root@node2 ~]# netstat -antp | grep 800 #查看端口
4tcp 0 0 0.0.0.0:800 0.0.0.0:* LISTEN 2374/nginx: master
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9.用IP:端口，查看网页
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