Windows查看删除DNS缓存

Windows查看删除DNS缓存

查看DNS缓存

查看所有DNS缓存

打开CMD，输入ipconfig/displaydns​

C:\>ipconfig/displaydns
Windows IP 配置
github.dev
----------------------------------------
记录名称. . . . . . . : github.dev
记录类型. . . . . . . : 1
生存时间. . . . . . . : 572199
数据长度. . . . . . . : 4
部分. . . . . . . . . : 答案
A (主机)记录  . . . . : 20.43.185.14


记录名称. . . . . . . : github.dev
记录类型. . . . . . . : 1
生存时间. . . . . . . : 572199
数据长度. . . . . . . : 4
部分. . . . . . . . . : 答案
A (主机)记录  . . . . : 20.99.227.183


记录名称. . . . . . . : github.dev
记录类型. . . . . . . : 1
生存时间. . . . . . . : 572199
数据长度. . . . . . . : 4
部分. . . . . . . . . : 答案
A (主机)记录  . . . . : 51.137.3.17


github.dev
----------------------------------------
没有 AAAA 类型的记录


225.195.231.54.in-addr.arpa
----------------------------------------
记录名称. . . . . . . : 225.195.231.54.in-addr.arpa.
记录类型. . . . . . . : 12
生存时间. . . . . . . : 572199
数据长度. . . . . . . : 8
部分. . . . . . . . . : 答案
PTR 记录  . . . . . . : github-cloud.s3.amazonaws.com

DNS单个查询

打开CMD，输入nslookup -displaydns​

C:\>nslookup -displaydns
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0
QUESTIONS:
    69.224.101.202.in-addr.arpa, type = PTR, class = IN
ANSWERS:
->  69.224.101.202.in-addr.arpa
    name = ns.jxncptt.net.cn
    ttl = 35619 (9 hours 53 mins 39 secs)


默认服务器:  ns.jxncptt.net.cn

Address:  202.101.224.69
> github.com

服务器:  ns.jxncptt.net.cn

Address:  202.101.224.69

Got answer:

HEADER:

opcode = QUERY, id = 2, rcode = NOERROR

header flags:  response, want recursion, recursion avail.

questions = 1,  answers = 1,  authority records = 0,  additional = 0
QUESTIONS:
    github.com, type = A, class = IN
ANSWERS:
->  github.com
    internet address = 20.205.243.166
    ttl = 30 (30 secs)


非权威应答:
Got answer:

HEADER:

opcode = QUERY, id = 3, rcode = NOERROR

header flags:  response, want recursion, recursion avail.

questions = 1,  answers = 0,  authority records = 1,  additional = 0
QUESTIONS:
    github.com, type = AAAA, class = IN
AUTHORITY RECORDS:
->  github.com
    ttl = 628 (10 mins 28 secs)
    primary name server = ns-1707.awsdns-21.co.uk
    responsible mail addr = awsdns-hostmaster.amazon.com
    serial  = 1
    refresh = 7200 (2 hours)
    retry   = 900 (15 mins)
    expire  = 1209600 (14 days)
    default TTL = 86400 (1 day)


名称:    github.com

Address:  20.205.243.166
>

删除DNS缓存

打开CMD,输入ipconfig/flushdns​

C:\Users\Second brain>ipconfig/flushdns
Windows IP 配置
已成功刷新 DNS 解析缓存。

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