开始--运行--cmd

nslookup -qe=mx ebadu.net

正确指示:

C:Documents and SettingsAdministrator>nslookup -qe=mx ebadu.net

Server: ns.ahhfptt.net.cn

Address: 202.102.192.68

DNS request timed out.

timeout was 2 seconds.

Non-authoritative answer:

ebadu.net MX preference = 0, mail exchanger = mail.ebadu.net

ebadu.net nameserver = ns2.dns.com.cn

ebadu.net nameserver = ns1.dns.com.cn

mail.ebadu.net internet address = 222.186.12.16

ns1.dns.com.cn internet address = 122.70.138.5

ns1.dns.com.cn internet address = 122.70.138.6

ns1.dns.com.cn internet address = 124.42.122.8

ns1.dns.com.cn internet address = 124.42.122.9

ns2.dns.com.cn internet address = 124.42.122.5

ns2.dns.com.cn internet address = 124.42.122.6

ns2.dns.com.cn internet address = 122.70.138.8

ns2.dns.com.cn internet address = 122.70.138.9

见到NS记录显示了IP 即为通畅状态

nslookup -qe=mx ebadu.com

C:Documents and SettingsAdministrator>nslookup -qe=mx ebadu.com

Server: ns.ahhfptt.net.cn

Address: 202.102.192.68

DNS request timed out.

timeout was 2 seconds.

Non-authoritative answer:

ebadu.com canonical name = www.center.ebadu.net

ebadu.net

primary name server = ns2.dns.com.cn

responsible mail addr = root.ns2.dns.com.cn

serial = 2008061113

refresh = 3600 (1 hour)

retry = 3600 (1 hour)

expire = 68400 (19 hours)

default TTL = 180 (3 mins)

反馈不回NSIP记录.即为不通状态!

检测反解析是否成功

nslookup –qt=ptr 61.191.191.182

返回信息如下：

C:Documents and Settingsuser>nslookup –qt=ptr 61.192.56.23

Server: mx.diyway.net

Address: 61.192.56.23

说明这个IP的反解析就是成功了。

返回信息如下

C:Documents and Settingsuser>nslookup –qt=ptr 61.192.56.23

*** Can't find server name for address 61.142.80.154: Non-existent domain

Server: UnKnown

Address: 61.192.56.23

说明这个IP的反解析没有作。

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