nslookup命令用法

 

一、直接查询 ¶

这个可能你们用到最多，查询一个域名的A记录。

nslookup domain [dns-server]

若是没指定dns-server，用系统默认的dns服务器。下面是一个例子：

C:\Users\jackie>nslookup www.ezloo.com 8.8.8.8 
Server:  google-public-dns-a.google.com 
Address:  8.8.8.8

Non-authoritative answer: 
Name:    www.ezloo.com 
Address:  70.32.68.136

 

二、查询其余记录

直接查询返回的是A记录，咱们能够指定参数，查询其余记录，好比AAAA、MX等。

nslookup -qt=type domain [dns-server]

其中，type能够是如下这些类型：

A 地址记录 
AAAA 地址记录 
AFSDB Andrew文件系统数据库服务器记录 
ATMA ATM地址记录 
CNAME 别名记录 
HINFO 硬件配置记录，包括CPU、操做系统信息 
ISDN 域名对应的ISDN号码 
MB 存放指定邮箱的服务器 
MG 邮件组记录 
MINFO 邮件组和邮箱的信息记录 
MR 更名的邮箱记录 
MX 邮件服务器记录 
NS 名字服务器记录 
PTR 反向记录 
RP 负责人记录 
RT 路由穿透记录 
SRV TCP服务器信息记录 
TXT 域名对应的文本信息 
X25 域名对应的X.25地址记录

例如：

C:\Users\jackie>nslookup -qt=mx ezloo.com 8.8.8.8 
Server:  google-public-dns-a.google.com 
Address:  8.8.8.8

Non-authoritative answer: 
ezloo.com       MX preference = 10, mail exchanger = aspmx.l.google.com 
ezloo.com       MX preference = 20, mail exchanger = alt1.aspmx.l.google.com 
ezloo.com       MX preference = 30, mail exchanger = alt2.aspmx.l.google.com 
ezloo.com       MX preference = 40, mail exchanger = aspmx2.googlemail.com 
ezloo.com       MX preference = 50, mail exchanger = aspmx3.googlemail.com

三、查询更具体的信息

查询语法：

nslookup –d [其余参数] domain [dns-server]

只要在查询的时候，加上-d参数，便可查询域名的缓存。

C:\Users\jackie>nslookup -d www.ezloo.com 
------------ 
Got answer: 
    HEADER: 
        opcode = QUERY, id = 1, rcode = NOERROR 
        header flags:  response, want recursion, recursion avail. 
        questions = 1,  answers = 1,  authority records = 2,  additional = 2

    QUESTIONS: 
        196.134.191.60.in-addr.arpa, type = PTR, class = IN 
    ANSWERS: 
    ->  196.134.191.60.in-addr.arpa 
        name = tzdns1.tzptt.zj.cn 
        ttl = 11568 (3 hours 12 mins 48 secs) 
    AUTHORITY RECORDS: 
    ->  191.60.in-addr.arpa 
        nameserver = dns-noc.zjhzptt.net.cn 
        ttl = 11537 (3 hours 12 mins 17 secs) 
    ->  191.60.in-addr.arpa 
        nameserver = ns.zjnbptt.net.cn 
        ttl = 11537 (3 hours 12 mins 17 secs) 
    ADDITIONAL RECORDS: 
    ->  dns-noc.zjhzptt.net.cn 
        internet address = 202.96.103.36 
        ttl = 11522 (3 hours 12 mins 2 secs) 
    ->  ns.zjnbptt.net.cn 
        internet address = 202.96.104.18 
        ttl = 11522 (3 hours 12 mins 2 secs)

------------ 
Server:  tzdns1.tzptt.zj.cn 
Address:  60.191.134.196

------------ 
Got answer: 
    HEADER: 
        opcode = QUERY, id = 2, rcode = NOERROR 
        header flags:  response, want recursion, recursion avail. 
        questions = 1,  answers = 1,  authority records = 2,  additional = 0

    QUESTIONS: 
        www.ezloo.com, type = A, class = IN 
    ANSWERS: 
    ->  www.ezloo.com 
        internet address = 70.32.68.136 
        ttl = 2732 (45 mins 32 secs) 
    AUTHORITY RECORDS: 
    ->  ezloo.com 
        nameserver = ns61.domaincontrol.com 
        ttl = 2365 (39 mins 25 secs) 
    ->  ezloo.com 
        nameserver = ns62.domaincontrol.com 
        ttl = 2365 (39 mins 25 secs)

------------ 
Non-authoritative answer: 
------------ 
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: 
        www.ezloo.com, type = AAAA, class = IN 
    AUTHORITY RECORDS: 
    ->  ezloo.com 
        ttl = 10800 (3 hours) 
        primary name server = ns61.domaincontrol.com 
        responsible mail addr = dns.jomax.net 
        serial  = 2011032900 
        refresh = 28800 (8 hours) 
        retry   = 7200 (2 hours) 
        expire  = 604800 (7 days) 
        default TTL = 86400 (1 day)

------------  Name:    www.ezloo.com  Address:  70.32.68.136