1.3、Nginx 安装说明（安装包）

Nginx 安装说明（安装包）

1、下载安装 Nginx

1.1、安装依赖

yum -y install gcc gcc-c++ pcre pcre-devel zlib-devel expat-devel

# 安装 gcc
yum install gcc-c++

# 安装 PCRE pcre-devel
yum install -y pcre pcre-devel

# 安装zlib
yum install -y zlib zlib-devel

# 安装Open SSL
yum install -y openssl openssl-devel

1.2、下载最新的 Nginx 稳定版本（ 1.28.0 版本）.

官方地址：https://nginx.org/en/download.html

$ cd /usr/local/src && wget https://nginx.org/download/nginx-1.28.0.tar.gz --no-check-certificate
$ tar -xzf nginx-1.28.0.tar.gz && cd nginx-1.28.0

1.3、编译安装

#执行命令
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module

#执行make命令(要是执行不成功请检查最开始安装的四个有没有安装成功)
make

#执行make install命令
make install

1.4、PCRE 编译安装

部分情况，Nginx 因为缺少 PCRE模块无法安装，且不能通过命令方式安装PCRE，则可以通过手动安装解决问题。

• PCRE 目前最新版本为 8.45，可以点这里进行下载。 https://sourceforge.net/projects/pcre/files/pcre/ ;
• 使用 tar -zxvf pcre-8.45.tar.gz 进行解压。
• 运行 chmod -R 777 /pcre-8.45 对当前文件夹授予全部读写权限。
• 切换到 /pcre-8.45 目录下，运行 ./configure 进行pcre初始化配置，会在控制台打印出一大堆的输出信息。
• 执行 make 操作，进行编译。
• 运行 make install，进行安装，至此PCRE安装完成。

2、开机启动

创建 Nginx 开机启动 nginx.service

$ vi /lib/systemd/system/nginx.service

脚本内容：

[Unit]
Description=Nginx - high performance web server
After=nginx.service
[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s stop
Execenable=/usr/local/nginx/sbin/nginx
[Install]
WantedBy=multi-user.target

设置随机启动：

systemctl daemon-reload
# 设置开机启动
systemctl enable nginx
# 取消开机自启动
#systemctl disable nginx
# 查看服务当前状态
systemctl status nginx
# 启动nginx服务
systemctl start nginx
# 停止nginx服务
systemctl stop nginx
# 重启nginx服务
systemctl restart nginx

3、优化 nginx.conf

创建文件目录

# 创建 Nginx 缓存目录
mkdir -p  /usr/local/nginx/proxy_cache_dir;
# 创建 Nginx 代理配置目录
mkdir -p /usr/local/nginx/vhost

执行下面命令，编辑 nginx.conf

vi /usr/local/nginx/conf/nginx.conf

配置文件

#user  nobody;
worker_processes auto;  # 自动检测CPU核心数
worker_rlimit_nofile 655350;  # 每个worker进程的最大文件描述符数量

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

pid        nginx.pid;

events {
    worker_connections 65535;  # 每个worker进程的最大连接数
    multi_accept on;  # 一次接受所有新连接
    use epoll;  # 使用epoll事件模型
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    log_format main '$remote_addr - $remote_user - $upstream_addr - $request_time/$upstream_response_time [$time_local] ' '"$request" $status $body_bytes_sent ' '"$http_referer" "$http_user_agent"';

    #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;

    # 连接优化
    keepalive_timeout 65;
    keepalive_requests 10000;

    # 缓冲区优化
    types_hash_max_size 4096;
    variables_hash_max_size 4096;
    variables_hash_bucket_size 128;
    server_names_hash_max_size 2048;
    server_names_hash_bucket_size 512; 
    client_header_buffer_size 32k;
    client_max_body_size 200m;
    large_client_header_buffers 4 32k;
    output_buffers 1 32k;
    postpone_output 1460;

    # 文件优化
    sendfile   on;
    tcp_nopush on;
    tcp_nodelay on;

    # Gzip压缩设置
    gzip on;
    gzip_min_length 100k;
    gzip_buffers     4 16k;
    gzip_http_version 1.1;
    gzip_comp_level 6;
    gzip_types     text/plain application/javascript application/x-javascript text/javascript text/css application/xml;
    gzip_vary on;
    gzip_proxied   expired no-cache no-store private auth;
    gzip_disable   "MSIE [1-6]\.";

    # 限制每个IP的请求速率为10r/s
    limit_conn_zone $binary_remote_addr zone=perip:10m;
    # 限制连接数
    limit_conn_zone $server_name zone=perserver:10m;

    # include vhost
    include /usr/local/nginx/vhost/*.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;
        }

        # 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;
    #    }
    #}

}