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Centos7 configure YUM to install the DNS Service

"demo.com" { type master; file "/var/named/demo.com" ; }; # Add a demo1.com Domain Name zone "demo1.com" { type master; file "/var/named/demo1.com" ; }; #include"/etc/named.rfc1912.zones"; #include"/etc/named.root.key"; #zone"testdongy.com"{ #typemaster; #file"/var/named/testdongy.com"; #}; # Copy the configuration above. 5. Configure DNS domain resolution files vim /var/named/demo1 .com $TTL3H @INSOA@demo1.com.( 0;serial 1D;refresh 1H;retry 1W;

DNS principle and parsing process V

This article mainly refers to from: http://369369.blog.51cto.com/319630/812889 and made a small change What is DNS. Hosts on the internet, like humans, can be identified in a variety of ways. A host's identification method is to use its host name (hostname), such as CNN.com, www.baidu.com, etc., but the host name provides little information about the location of the host in the Internet. (a host named www.eurecom.fr ends with a country code. FR, tell

Dns settings in linux

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 211.152.50.35. If there is no DNS, When you browse the website 21php.com, you must use numbers that are so hard to remember as

Godaddy-powerful free Domain Name DNS resolution service

Godaddy is the world's No. 1 domain name and virtual host service provider. It is found that Godaddy also provides free Domain Name DNS resolution services, and does not need to buy any Godaddy services, you only need to register as a Godaddy member for free! Godaddy's free DNS service is also very powerful, just like the DNS resolution service provided for purch

DNS of Linux Services (ii)

the Hosts file;Query options:+[no]trace: Trace parsing process;+[no]recurse: Recursive parsing;Note: Reverse parsing testDig-x IPSimulate full zone transfer:Dig-t AXFR DOMAIN [@server]Host command:Host [-t Rr_type] name Server_ipnslookup command:nslookup [-options] [name] [Server]Interactive mode:Nslookup>Server IP: Queries the DNS server with the specified IP;Set Q=rr_type: The type of resource record to query;Name: names to query;RNDC command: Name

How DNS queries work

Source: http://book.51cto.com/art/200801/64743.htm Http://www.xxeb.com/site/domain/20070314/23.html Author: Release Date: When the DNS client needs to query the name used in the program, it queries the DNS server to resolve the name. Each query message sent by the client contains three messages, specifying the server's answer: • The specified DNS do

The principle of DNS and its analytic process "wonderful anatomy"

The principle of DNS and its analytic process "wonderful anatomy" 2012-03-21 17:23:10Tags: dig wireshark bind nslookup DNS original works, allow reprint, when reproduced please be sure to use hyperlinks in the form of the original source of the article, author information and this statement. Otherwise, the legal liability will be investigated. http://369369.blog.51cto.com/319630/812889The principle of

CentOS uses host, dig, and nslookup to query DNS commands

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 related software packages for dig and nslookup. Centos:# yum install bind-utilsDebian:# apt-get update# apt-get install dnsutilsIn addition, you must set the dns se

Linux Learning Path DNS configuration file and positive solution zone file, anti-solution zone file

DNS Positive Solution zone fileIn DNS, we know that there is the concept of domain and region, the English name of the domain is domains, it is a logical concept, and the region English full name zone, it is a physical concept. And zone is divided into positive solution area and inverse solution area.Positive Solution Area: a service that provides forward parsing, that is, the process of FQDN-->IPAnti-Solut

10 methods to secure DNS

DNS software is the target of hackers ' passion for attack, and it can bring security problems. Here are some of the most effective ways to protect your DNS servers. 1. Using DNS ForwardersA DNS forwarder is a DNS server that completes D

North-South intercommunication no worries about dual-line DNS Creation

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 and hard-to-remember IP addresses with user friendly names to locate the corresponding computers and services. Therefore, to enable friendly and friendly names to

Create a DNS server on Linux

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 practical application instances for Linux administrators. The following assumes that we need to build a corporate n

Some api~ of Nodejs (iv) UDP&DNS

Integer, Destination portsAddress String, Destination IPCallback Function, optional, callback when message is postedFor UDP sockets, the template port and the ip,address parameter must be established but a string that he will be parsed by DNS;Socket.bind (PORT,[ADDRESS],[CB]);Port integer;address String OptionalFor UDP sockets, listen for data on a named port and an optional address.Socket.close ();Socket.address ();Socket.setbroadcast (flag); Sets o

DNS server under Linux environment

,Reverse domain:. in-addr.arpaSecond-level domain:Company, organization, personal use, such as www.baidu.com,. Baidu is a two-level domain nameHost:WWW,MAIL,POP,FTP, etc.DNS resource records:FQDN(full qualified domain name, fully qualified domainname)The format is:hostname + Level two domain name + domain + root domain .such as: www.baidu.com. is a full FQDN.WWW is the hostname,. baidu.com. is a level two domain name,. com. For the top-level domain. to the root domain.SOA: (start of authority, s

Investigation Report on DNS Pollution Prevention Solution

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 encountered DNS problems on G +, so today I tested the status quo of DNS. The entire process is very simple. You only n

Installation and configuration of DNS (BIND) server for Linux operational operations

Tags: file handle relative path CDC receive sbin data notation Windows ASI"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 implementing zone transfers between prima

Set the DNS domain name server address Bat batch script file. bat

REM file name set DNS name server address Bat batch script file. batREM Use set the DNS name server address for the wireless network connectionnetsh interface ip add DNS "Wireless network connection" 8.8.8.8netsh interface ip add DNS "Wireless network connection" 8.8.4.4netsh interface ip add

Parsing DNS parsing time

Improve the speed of web pages, generally we will choose to use a CDN, using the "nearest principle" to allow users in the shortest possible time to obtain the server resources, the actual application of the use of CDN to improve the speed of website access is also the most obvious effect. This is why foreign space is far less open than the domestic host's speed of access to the reason.We know that when a user visits a website, the domain DNS resoluti

Top 10 tips for protecting DNS servers

Welcome to the Windows community forum, and interact with 3 million technical staff to access the DNS software, which is a target of cyberattacks and may cause security problems. This article provides 10 most effective methods to protect DNS servers. 1. Using a DNS forwarder is a DNS server that completes

RHEL5 + bind9 simple and quick DNS server Construction

of named. conf5. Create the/etc/named. conf file.# Cat/etc/named. confOptions {Directory "/var/bind ";Allow-query {any ;};};Zone "."{Type hint;File "named. ca ";};Zone "baidu.org.tw "{Type master;File "named.baidu.org.tw ";Allow-update {none ;};};Zone "191.168.192.in-addr. arpa "{Type master;File "named.192.168.191 ";};Include "/etc/rndc. key ";6. Create a DNS Root query Address File# Dig>/var/bind/named. ca# Cat/var/bind/named. ca; ; Global options:

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