The usage of the Linux basic command dig

This article mainly explains "the usage of the Linux basic command dig". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the usage of the basic Linux command dig.

Dig

Dig is a DNS query tool, and most administrators use the dig command to solve DNS problems.

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

1. Grammar

Dig [options]

2. Parameter list

Option

Description

@ server

Specify server address

-b host

Specify which host to query

-f file

Query from the specified file

-p port

Specify the port to use

-t type

Specify the type of DNS to query, such as A\ MX\ PRT

-x ip

Specify DNS if you want to query, enter ip to get the domain name

-4

Use ipv4

-6

Use ipv6

3. Examples

1) query domain name information

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

; DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 www.baidu.com

;; global options: + cmd

;; Got answer:

;;-> > HEADERHEADER