reverse dns lookup command line

Originally transferred from http://hi.baidu.com/shyoung/blog/item/b0ccff03fd462481d43f7c5a.html The complete DNS System of the DNS component consists of the DNS server, region, Parser (DNS client), and resource records, and you need to correctly

read the basic requirements of this article:1. The use of the cmd command has a certain basis2. The basic principles of DNS and common concepts have a certain understanding, such as host, alias, forward lookup zone, reverse lookup zone, and so on.3.

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

DNS ServerDNS OverviewWhen a DNS client wants to communicate with a host, for example to connect www.baidu.com, the client queries the DNS server for the IP address of the host, and when DNS receives the request, the DNS server assists the client in

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

Passive Information collectionFeatures:Based on open channelNo direct contact with the targetAvoid leaving all traces.Standard Reference--osint:U.S. militaryNorth Atlantic Treaty Organization noun explanationdns--domain Name System domain Name

The entire Hteret family connected to hundreds of billions of server personal hosts, most of the sites, parts and other servers have used the domain name form of address, such as Www.google.com.mail 163.com. It is clear that this form of address is

The entire Hteret family connected to hundreds of billions of server personal hosts, most of the sites, parts and other servers have used the domain name form of address, such as Www.google.com.mail 163.com. It is clear that this form of address is

This article provides the basic DNS configuration steps necessary for use of the single Client Access Name (SCAN) introduced I n Oracle 11g Release 2 RAC. Consider the following caveats before following the instructions here:I ' m not a network guy

The role and type of 1.DNS systemThe role of DNS system in the network is to maintain an address database, which records the various host domain names also IP address correspondence, in order to provide the client program forward or reverse the