Recently, my colleague reported that during the NSLookup test on the Intranet, I found that when I used the Intranet DNS server 192.168.1.1 for resolution, the DNS server responded very quickly and did not
Any errors. However, when the DMZ server 51.
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.
For details about dns settings in linux-Linux Enterprise Application-Linux server application, see the following. ① Introduction
DNS is the Domain Name System, which can convert a Domain Name such as www.21php.com to an IP address such as 211.152.50.
I. Host directiveFormat: Host [-A] FQDN [server]HOST-L domain [Server]Options:-A: Represents a list of all relevant information about the host, including IP, TTL, and error-removing messages, etc.-L: If the next domain setting allows Allow-transfer,
1 DNS IntroductionDNS (domain Name System) can provide valuable data during the detection process, the basic function of DNS is to convert the domain name to an IP address. (If you don't know much about DNS, it's going to take a lot of effort!) Now
Create a DNS server on Linux-Linux Enterprise Application-Linux server application information. For more information, see. I. Assumptions
Many DNS articles start with the DNS principle. From the perspective of my use, I will provide some simple and
What should I do if my website is hijacked?
Whether the domain name is walled.
How to detect DNS pollution. Website hijacking Detection
Website opening speed detection.
Checks whether a website is hacked, hacked, changed its title, or hacked.
I
"The main content of this blog post"
Introduction to bind server (including Introduction to Client Tools Dig)
Configuring forward parsing DNS servers
Configure Reverse resolution DNS server
Configuring a secondary DNS server and
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
What is DNS
Domain Name System (DNS) is an English abbreviation of "Domain Name System". It is a computer and network service naming System organized into a Domain hierarchy. It is used for TCP/IP networks, it is mainly used to replace the boring
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