dig dns lookup

DNS is one of the core Internet protocols. Whether it's surfing the web or programming, you need to know a little bit about it.This article describes in detail The principle of DNS and how to use the tool software to observe its operation. My goal

Each IP address can have a host name that consists of one or more strings separated by a decimal point. With the hostname, do not memorize each IP device IP address, just remember the relative intuitive meaningful host name on the line. This is the

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

ConceptDefault dns lookup sequence for linux clients: Local DNS Cache → local hosts file → preferred DNS server (recursive) Linux DNS Server Query sequence:The DNS cache of the preferred server → the domain in which the preferred server is

What is the nature of DNS? Domain Name System = DNS (domain name systems) is actually a database, is a distributed database for TCP/IP programs, and is also an important network protocol. DNS stores information about IP addresses and corresponding

Brief introduction In my opinion, the only DNS solution based on bind consists of two parts: geolocation and dynamic record. The domestic industry for smart DNS positioning is nothing more than these two points, but I understand that smart DNS is

Website IntroductionWww.benet.com (host name fqdn:full qualified domain name, fully qualified domainname)There is a com,com domain below the domain that contains benet, and a host called www under the Benet domain.Early parsing using

Common options:-B: When the host has multiple IP addresses, specify which IP address to use to send Domain name query requests to the domain name server;-f-P: Specifies the port number used by the domain name server;-t-X: Perform reverse domain name

DnsCase one:Domain Name: abc.comDNS server: 192.168.2.100www:1.1.1.1ftp:2.2.2.2mail:3.3.3.3POP3 SMTPMx① Installation Preparationmount/dev/cdrom/media/cdrom/cd/media/cdrom/packages/ll bind*Yum--disablerepo=\*--enablerepo=c6-media Install bind

Domain Registration InformationWhen you know the target domain name, the first thing you have to do is to query the domain name registration information through the Whoist database, whois database is to provide the domain name registrant information,