Shulou(Shulou.com)06/02 Report--

Nslookup

Nslookup is a tool for querying DNS domain names. It works in both interactive and non-interactive modes.

The scope of application of this command: RedHat, RHEL, Ubuntu, CentOS, Fedora.

1. Grammar

Nslookup [- option] [name | -] [server]

2. After entering the interactive mode, you have the following command

Command

Description

Host

Query the information of host

Server domain

Change the server

Exit

Quit

Set keyword= value

Set specified properties

All, print all the properties

Domain=name sets the name of the query

Port=value changes the server port

Type=value changes the type of query

Timeout=number set wait timeout

Class= {IN | CH | HS | ANY}

3. Examples

1) non-interactive mode query

[root@localhost ~] # nslookup www.baidu.com

Server: 172.20.10.1

Address: 172.20.10.1#53

Non-authoritative answer:

Www.baidu.com canonical name = www.a.shifen.com.

Name: www.a.shifen.com

Address: 111.13.100.91

Name: www.a.shifen.com

Address: 111.13.100.92

2) Interactive mode query

[root@localhost ~] # nslookup / / interaction mode

> www.baidu.com / / enter the domain name to be queried

Server: 172.20.10.1

Address: 172.20.10.1#53

Non-authoritative answer:

Www.baidu.com canonical name = www.a.shifen.com.

Name: www.a.shifen.com

Address: 111.13.100.91

Name: www.a.shifen.com

Address: 111.13.100.92

> set all / / print all current configuration information

Default server: 172.20.10.1

Address: 172.20.10.1#53

Set options:

Novc nodebug nod2

Search recurse

Timeout = 0 retry = 3 port = 53

Querytype = A class = IN

Srchlist =

>

A Linux learning platform has been made, and a prototype has come out at present, which you can refer to and use.

Link: https://pan.baidu.com/s/1GOLVU2CbpBNGtunztVpaCQ password: n7bk

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.