Dig command use Daquan (domain name query on Linux)It can be said that the process of translating this document is my re-learning the process of DNS, Dig command can help us learn the principle of DNS, configuration,As well as its query process. The
Dig Introduction:Dig is a tool that queries DNS for information such as NS Records, A records, MX records, and so on in Unix-like command-line mode. Because it has been missingDig man page document, this article right when a Dig use the wizard.Dig's
1. IntroductionThe Domain name Information Finder (DIG) is a powerful tool similar to Nslookup, which not only supports running command-line options, but also enables you to import files directly through the pipeline when querying multiple domain
The dig command is primarily used to query host address information from a DNS domain name server.querying DNS information for a single domain nameThe most typical use of the dig command is to query the information of a single host.$ dig
Dig Command Options and Examples
+ [No] query using TCP or without TCP
+ [No] VC provides options for compatibility with earlier versions. The same role as TCP options. VC stands for "virtual circuit"
+ [No] Ignore ignores the truncated UDP
In actual application, DNS resolution errors may occur, that is, when we access a domain name, it cannot be resolved to an IP address, however, you can directly enter the website IP address for normal access, which is caused by a DNS resolution
Cloud Server ECS Linux system can use the usual dig command to query the domain name resolution. This article gives a brief description of this.Querying Domain A Records
command Format :dig For example, the query domain name www.aliyun.com
In general, there are two options for querying domain name resolution in Linux, Nslookup or dig, and I think dig more convenient to use.If it is under Debian, you can use the dig command as long as you install the Dnsutils package.The most basic way
1. install the software packages dig and nslookup. Centos: # yuminstallbind-utilsDebian: # apt-getupdate # apt-getinstalldnsutils set the dns server IP address in/etc/resolv. conf before querying. II. usage
1. install the software packageInstall
Dig command
Function descriptionDig and Nslookup, as well as the Domain name Query tool, is used to test the domain Name system is working properly. These two commands are all under the Bind-utils package, dig use is more convenient than
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