本文参考了csdn这位博主的文章并修改整理：

https://blog.csdn.net/qq_32262243/article/details/133951973

还是腾讯云ubuntu 24系统，我这里并没有手动下载pcre等源码，直接用ubuntu自带的就可以了，也不需要手动编译openssl等。

一、软件准备

1.1 nginx源码

  这里使用最新的稳定版本1.26.1的源码，下载地址:

https://nginx.org/download/nginx-1.26.1.tar.gz

1.2 geoip2模块源码

Releases · leev/ngx_http_geoip2_module · GitHub

  这个源码是配合nginx源码在做静态编译的时候添加对IP地址过滤支持用的。

1.3 libmaxmindb库

https://github.com/maxmind/libmaxminddb/releases

1.4 IP地址库

https://www.maxmind.com/en/home

注册然后登录，下载country库和city库备用

二、环境准备

   ubuntu 24系统做以下准备

sudo apt-get install build-essential zlib1g-dev libssl-dev libpcre2-dev libmaxminddb-dev libmaxminddb0 mmdb-bin vim 

三、编译安装

  解压缩第一步下载的4个压缩包，解压缩命令是tar -zxvf 压缩包名称,我这里数据盘挂载路径是/data，所以在解压缩以后我把这四个压缩包解压结果移动到了我的/data里面备用，其中geoip2模块的路径是/data/software/nginx/ngx_http_geoip2_module-3.4/，以下先编译安装libmaxmindb

cd /data/libmaxminddb-1.10.0
./configure
make
make install
ldconfig

  然后开始编译nginx

cd /data/nginx-1.26.1
./configure --with-http_realip_module --with-http_sub_module --with-http_gzip_static_module --with-http_stub_status_module --with-http_ssl_module  --with-http_v2_module --with-stream --add-module=/data/software/nginx/ngx_http_geoip2_module-3.4/
make
make install

 这就编译安装成功了，以下开始配置nginx

mkdir -p /data/nginx/logs
mkdir -p /usr/local/nginx/conf/v_host/
mkdir -p /usr/local/nginx/cache

  四、配置nginx

  修改/usr/local/nginx/conf/nginx.conf文件，增加对IP地址过滤的支持

#user  nobody;
worker_processes  auto;

error_log   /data/nginx/logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
pid        /var/run/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  /data/nginx/logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;   
    keepalive_timeout  65;
    gzip  on;

    # 配置国家IP库
    geoip2 /data/GeoLite2-Country/GeoLite2-Country.mmdb{
        auto_reload 20m;
        $geoip2_metadate_country_build metadata build_epoch;
        #$geoip2_data_country_code country iso_code;
        $geoip2_country_name country names en;
        $geoip2_data_country_code default=US country iso_code;
    }

    # 配置城市IP库
    geoip2 /data/GeoLite2-City/GeoLite2-City.mmdb {
        auto_reload 20m;
        $geoip2_data_city_name city names en;
        $geoip2_data_province_name subdivisions 0 names en;
        $geoip2_data_province_isocode subdivisions 0 iso_code;
        $geoip2_continent_code continent code;
    }

    #配置规则，默认不允许所有IP访问，只允许中国IP访问
    map $geoip2_data_country_code $allowed_country {
        default no;
        CN yes;
    }

    # 引用v_host中的指定conf配置文件
    include /usr/local/nginx/conf/v_host/*.conf;

}

  在/usr/local/nginx/conf/v_host里面新增自己站点的.conf文件，如xxx.com.conf文件并配置里面的内容：

server {
    listen   443   ssl;
    server_name  xxxx.com;

    ssl_certificate /data/nginx/xxxxxxx.crt;
    ssl_certificate_key /data/nginx/xxxxxxxxx.key;

    ssl_session_timeout 5m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;
    ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
    ssl_ecdh_curve secp384r1;
    ssl_session_cache shared:SSL:10m;
    ssl_stapling on;
    ssl_stapling_verify on;

    client_max_body_size 50M;

    # 添加客户端的IP头
    add_header client-country $geoip2_data_country_code;    

    # 做判断，如果国家不是中国，就返回451状态码给客户端；
    if ($geoip2_data_country_code != CN ) {
        return 451;
    }

    # 做判断，如果匹配到默认不允许的规则，就返回452状态码给客户端；   
    if ($geoip2_data_country_code = no ) {
        return 452;
    }
    
    location / {
        if ($allowed_country = no) {
                return 403;
        }
       #你的正常配置
    }
}

 最后，写一个nginx的systemd服务文件，将nginx配置为systemd 服务程序

vim /etc/systemd/system/nginx.service

[Unit]
Description=NGINX HTTP and reverse proxy server
After=syslog.target network.target nss-lookup.target

[Service]
Type=forking
PIDFile=/var/run/nginx.pid
ExecStartPre=/usr/local/nginx/sbin/nginx -t
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/usr/bin/kill -s HUP $MAINPID
ExecStop=/usr/bin/kill -s QUIT $MAINPID
# Hardening
#InaccessiblePaths=/etc/gnupg /etc/shadow /etc/ssh
#ProtectSystem=full
#ProtectKernelTunables=yes
#ProtectControlGroups=yes
#SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io
#MemoryDenyWriteExecute=yes
#RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
#RestrictRealtime=yes

[Install]
WantedBy=multi-user.target

systemctl enable nginx 就可以了。