nslookup命令用法

 

一、直接查詢 ¶

這個可能你們用到最多，查詢一個域名的A記錄。

nslookup domain [dns-server]

若是沒指定dns-server，用系統默認的dns服務器。下面是一個例子：

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、查詢其餘記錄

直接查詢返回的是A記錄，咱們能夠指定參數，查詢其餘記錄，好比AAAA、MX等。

nslookup -qt=type domain [dns-server]

其中，type能夠是如下這些類型：

A 地址記錄 
AAAA 地址記錄 
AFSDB Andrew文件系統數據庫服務器記錄 
ATMA ATM地址記錄 
CNAME 別名記錄 
HINFO 硬件配置記錄，包括CPU、操做系統信息 
ISDN 域名對應的ISDN號碼 
MB 存放指定郵箱的服務器 
MG 郵件組記錄 
MINFO 郵件組和郵箱的信息記錄 
MR 更名的郵箱記錄 
MX 郵件服務器記錄 
NS 名字服務器記錄 
PTR 反向記錄 
RP 負責人記錄 
RT 路由穿透記錄 
SRV TCP服務器信息記錄 
TXT 域名對應的文本信息 
X25 域名對應的X.25地址記錄

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、查詢更具體的信息

查詢語法：

nslookup –d [其餘參數] domain [dns-server]

只要在查詢的時候，加上-d參數，便可查詢域名的緩存。

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