Linux basic command-host domain name query tool

Host

Host is a commonly used DNS query tool, which is often used to query domain names and check whether domain name resolution is correct.

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

1. Grammar

Host [options] name [server]

2. List of options

Option

Description

-a

Query all the information

-c

Set query type

-C

Query the complete SOA record

-d |-v

Show detailed procedures

-l

List mode

-t

Select query type: CNAME NS SOA SIG KEY AXFR

-w

Wait forever

-W

Set wait timeout

3. Examples

1) query domain name

[root@localhost ~] # host www.baidu.com / / query domain name information, display aliases and ip

Www.baidu.com is an alias for www.a.shifen.com.

Www.a.shifen.com has address 111.13.100.91

Www.a.shifen.com has address 111.13.100.92

2) query all information

[root@localhost ~] # host-a www.baidu.com / / query all the information of the domain name

Trying "www.baidu.com"

;;-> > HEADER