nslookup reverse lookup

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.

First, the question:The Domain Control Server DOS window runs the nslookup command prompt as follows:Second, reason analysis:The main reason is that the DNS server for the domain control server does not have a reverse lookup zone set, and the

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

Netstat Command Overview:Netstat is a very useful tool for monitoring TCP/IP networks, which can display routing tables, actual TCP network connections, TCP and UDP snooping, process memory management, and status information for each network

Spam in the flood of today, spam to our lives, work, learning has brought great harm. Because of the lack of effective authentication mechanism between SMTP servers, even if the use of spam identification blocking technology is still common, and the

Zheng Yi 20110330 Background: What is MXRecord? Used by the email system to locate the email server based on the recipient's address suffix when sending an email. For example, when the recipient is a user@mydomain.com, the system will parse

1. Nslookup (name server lookup): a tool used to query Internet domain name information or diagnose DNS server problems. Nslookup can specify the query type. You can check the DNS record survival time and specify the DNS server to be used for

In the day-to-day IT operations, we often need to query the IP address of the corresponding host name, as well as anti-spam often use the Reverse address query function. DNS itself can also be used to complete the reverse resolution of the address

Dns_bind_ forward and reverse domain name resolutionBind Service supports TSIG Secure encryption transfer mechanismDNS domain name resolution service for resolving domain name and IP address correspondence Serviceforward parsing: Based on the domain

I. DNS basics [DNS System (server) Working Principle and attack protection methodology] DNS: Domain Name System, the Domain Name resolution server. Its role on the Internet is to convert the Domain Name into an IP address that can be recognized by