1、環境：yum安裝的Nginx。
2、場景：重定向Nginx自帶的錯誤提示頁面。
3、配置檔案：/etc/nginx/conf.d/default.conf
tip:為什麼是這個配置檔案呢，因為在nginx.conf檔案中載入了include /etc/nginx/conf.d/*.conf;
4、default.conf原始碼：

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/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   /usr/share/nginx/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;
    #}
}
 

5、Nginx訪問頁面目錄：usr/share/nginx/html/
自定義加添了404.html檔案、403.html檔案、200目錄、403目錄、502目錄。

1、這樣訪問localhost 正常頁面

2、訪問localhost/200、localhost/403、localhost/502 拒絕訪問目錄，提示Nginx自帶提示錯誤

3、訪問localhost/404 未找到，提示Nginx自帶提示錯誤

然後我們修改default.conf
1、去掉error_page 404 /404.html;的註釋，重定向404錯誤
2、新增#error_page 403 /403.html;，重定向403錯誤
3、新增

location /502 {
        return 502;
    }
 

，訪問502目錄返回502狀態碼

熱重啟nginx

# service nginx reload

1、現在訪問localhost 正常頁面
2、訪問localhost/200、localhost/403 拒絕訪問目錄，提示自定義頁面

3、訪問localhost/404 未找到，提示自定義頁面

4、訪問localhost/502 502狀態，提示自定義頁面

由於定義了

location /502 {
        return 502;
    }

所以訪問 localhost/502返回502狀態，
由定義了

error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
 

所以502狀態提示頁面為50x.html

最後放上修改後的default.conf檔案

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

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

    error_page  404              /404.html;
    error_page  403              /403.html;

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

    location /502 {
        return 502;
    }
}