当前位置:网站首页>描述DNS解析的工作过程
描述DNS解析的工作过程
2022-07-17 00:16:00 【韵晟】
DNS工作过程如下:
1、用户机提出域名解析请求,并且发送给本地的域名服务器;
2、当本地的域名服务器收到请求后,先查询本地的缓存,如果有该记录,则本地的域名服务器就直接把查询的结果返回;
3、如果本地的缓存中没有该纪录,则本地域名服务器就直接把请求发给根域名服务器,然后根域名服务器再返回给本地域名服务器一个所查询域(根的子域) 的主域名服务器的地址;
4、本地服务器再向上一步返回的域名服务器发送请求,然后接受请求的服务器查询自己的缓存,如果没有该纪录,则返回相关的下级的域名服务器的地址;
5、重复第四步骤,直到找到正确的纪录,本地域名服务器把返回的结果保存到缓存,再把查询的结果返回;
边栏推荐
- 数组、冒泡的认识
- Simple use case writing specification
- CTFHub----RCE
- Graduation thesis word skills Collection
- shell脚本接收和返回参数
- [hsjframework] unity time management timemanger timer
- Post man JSON script to JMX script of JMeter
- 数组、冒泡的认识
- Interview: the difference between interface and abstract class - concise summary
- In depth performance test data analysis
猜你喜欢

How to use nmon

PXE automated installation
![[solved] after referring to the local MySQL and forgetting the password, [server] --initialize specified but the data directory has files in it Aborti](/img/a8/2daa2c0d834f1986c8421bf5138c7e.png)
[solved] after referring to the local MySQL and forgetting the password, [server] --initialize specified but the data directory has files in it Aborti

Network layer protocol and IP packet format (detailed)

Cocoon breaking and rebirth of 3D NFT: caduceus decentralized edge rendering technology

Use of sqlmap

MySQL初探

shell脚本之循环语句与函数

【瑞吉外卖⑩】Linux 粗略学习 & Redis 粗略学习

VLAN and trunk port configuration
随机推荐
流量回放工具gor使用经验
ctfhub--ssrf
JMeter response time test component & multi interface concurrency
PowerStor500T报错0x01806803
Experience in using flow playback tool Gor
Flyway的SaaS多租户实现方案
Tree array and St table
[Ruiji takeout ⑩] rough learning of Linux & rough learning of redis
PXE自动化安装
RHCE-ansible-第一次作业
Firewalld 防火墙
Zabbix6.0通过iDRAC,IMM2监控DELL,IBM服务器硬件
Dirty reading, unreal reading, non repeatable reading
Network layer protocol and IP packet format (detailed)
Brief introduction of Feature Engineering and its implementation of sklearn
shell脚本之条件语句
登录功能的测试点大全
Leetcode buckle classic topic - 82 Maximum rectangle in column chart
Make a simple record and check the set
FTP service