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
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
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
Webmaster friends know that the long tail keyword can promote the conversion rate of the site, my last article, "only three strokes to make your site conversion rate is rapidly rising" in detail about the role of long tail keyword and why to do long
DNS resolution is generally authorized more than two, to prevent a single point of failure.For example, Aquan's study domain name www.aslibra.com, authorized twoNs.aslibra.com and ns2.aslibra.com, what if a single point of failure?Trace Check the
1. view the Host IP address resolved by the DNS host name
Host CommandPurposeResolve a host name to an Internet address or an Internet address to a host name.SyntaxHost [-n [-a] [-c Class] [-d] [-r] [-t Type] [-v] [-w] [-z] Hostname | Address
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