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公司一个域名需要写本地hosts解析才可以访问？
公司没有内网dns服务器，写本地hosts解析，详情如下：
在阿里云上购买一台有公网ip的服务器，
<>linux服务器操作
##安装nginx服务 server { listen 80; listen [::]:80; #server_name _; server_name
nginx.test.com; root /usr/share/nginx/html; # Load configuration files for the
default server block. include /etc/nginx/default.d/*.conf; error_page 404
/404.html; location = /404.html { } error_page 500 502 503 504 /50x.html;
location = /50x.html { } } ## 编写服务器本地hosts解析，也可以写内网ip地址，应该也是可以的
[root@iZ2ze5jde9q0aqvz0w4hqwZ ~]# cat /etc/hosts 127.0.0.1 nginx.test.com
<>windows本机操作
## 配置本地hosts解析,解析到公网ip：8.141.148.243 C:\Windows\System32\drivers\etc\hosts
8.141.148.243 nginx.test.com
<>测试是否可以ping通，nslookup测试域名
<>测试是否可以访问
dns解析
一 DNS（域名解析）解析流程
1.查找本地dns缓存及hosts文件
2.查找LDNS（local dns）服务器（缓存）
3.查找根域服务器（由本地LDNS查找）
4.查找.com顶级域服务器
5.LDNS请求.com服务器找到baidu.com服务器
6.LDNS请求baidu.com服务器
7.Baidu.com服务器返回www.baidu.com域名的IP解析记录给LDNS
8.LDNS返回给客户端解析记录及缓存到本地（完成解析过程）
递归 客户机查询服务机 上述 1 2
迭代 服务机查询服务机 上述 3 4 5 6 7
<>配置文件：resolv.conf
options rotate timeout:1 attempts:3 single-request-reopen
添加到/etc/resolv.conf 中
#释义： 循环查询 超时时间 重试次数 只收到一个IPV4应答或者只收到一个IPV6应答，重新开一个socket查询
重要配置 一个超时的 timeout，一个是重试的 attempts，默认情况下，前者是 5s 后者是 2 次
重新启动服务
systemctl restart network
