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In the previous blog, we introduced the architecture of DNS, the common records, also introduced the configuration of the secondary server, today we will introduce some of the files behind the DNS server. In fact, the work of the DNS server relies on these files, understand the background files of DNS, to better unders
;FQDNReverse: Ip-->fqdnForward: Fqdn-->ipIp-->fqdn:FQDN-->IP:Www.magedu.com.IP1Inquire:Recursive: Only one request is issuedIteration: Making multiple requestsAnalytical:Forward: Fqdn-->ipReverse: Ip-->fqdnTwo-stage: recursive, iterativeDNS: Distributed DatabaseThe superior only knows its direct subordinate;Subordinates only know the location of the root;DNS server:Accept local Customer query requests (recursive)External client Request: Request author
In Linux, often parsing a domain name, the first will find /etc/hosts file, if the /etc/hosts file does not correspond, will go to find DNS, then what is the way to let the host first look for DNS it?Of course, it's defined in the /etc/nsswitch.conf file./etc/nsswitch.confHosts:files DNS//Find this section and change it to the followingHosts:dns filesIn this way,
How to modify the Android phone DNS First step We take the Android phone as an example, click "Settings" in the phone and click "WLAN Settings" to open the entry Second Step Then we find our WiFi connection and then press it, and then we pop up the "Modify network". Third Step After entering, we click "Show advanced Options" To change "IP settings" to "static" so that you can manually enter a DNS addr
DNS in System parameters DNS server 1, 2: Must be an address such as test.abc.com Also, this address must be registered in the Registrar, Domain name Management "registered DNS server" in the domain name Oh, I see. Is the same as the two of them? Some registrars do not allow the same domain name Is it okay to use a single server? This address must be
Millet route Settings Baidu Public DNS How to operate it? The following small series for everyone to bring Millet route settings DNS method, millet route want to use Baidu public DNS to how to set it? Next to the friends who do not know with the small weave together to study under it. Millet route setup Baidu Common DNS
In the last blog post we introduced several of the most essential records in a DNS server, including A records, NS records, and SOA records. In this blog post we will continue to introduce several other commonly used records of DNS, hoping to help you understand DNS. Four MX records MX records are also known as Mail Exchanger Records, and MX records are used to
Two days of indulgence, to get physically and mentally exhausted. I was almost late in the morning, but fortunately I stepped on it. Oh!In Friday, because the notification Sunday power outage, so the server, such as shutdown equipment, etc. are shut down. So the first thing I do is give them electricity. The buttocks just sat down, the colleague said the computer can not go in, in the Welcome interface has been spinning, 10 minutes. Another colleague said that the shared folder could not be acce
Most DNS cache servers exist in small enterprises. they are not responsible for domain name resolution and are only used to help users query domain name information from other DNS servers. The queried information is saved locally to facilitate the next use of the domain name. it is valid to shorten the domain name query time and save the local information. The following is... information Most
The previous section mentioned some of the content of the recursive query, but said very little, but also very general, this section will be based on the principle and the case two aspects of DNS recursion and iterative query. Before that, we need to learn some background to better understand today's topic. In the Internet, a smooth resolution of a domain name is inseparable from two types of domain name servers, only by the two types of domain name
Shell script-automatic DNS deployment and shell script dns For details, see: (1) Play with me the Linux Network Service: DNS service -- BIND (/etc/named. conf,/var/named) setting implementation and Explanation 1 #! /bin/bash 2 IP="10.10.10" 3 RIP="10.10.10" 4 DN="gr.org" 5 Name="10.10.10.10" 6 7 cat >> /etc/named.conf
Labels: local software compiled DNS bind named Bind compilation and Installation The software package with tar.gz and tar.bz2 is mostly through. /configure; Make; make install to install; some software directly make make install, we can use. /configure -- help to view the functions of the configuration software. Most of the software is provided. /configure configures the software's functions. A few do not. If not, make make install directly. . One o
Description1, NetworkManager tool is the Ubuntu desktop version of the GUI setup tool.2, this tool is recommended to operate directly on the GUI, it is not recommended to use the command line management, such as WiFi configuration.3, of course, this tool can have command line tools:nmcli, if the use of NetworkManager to configure the network, then IP, gateway, DNS can be queried through this tool.4, if the command line network settings are configured,
Tags: cal grep nslookup no direct directory netstat images resRelated concepts:Forward parsing: Resolving a domain name to an IP addressReverse parsing: Resolving IP addresses to domain namesEnvironment: Linux Server One, IP address: 192.168.80.10The first step: Getting Ready for work[[email protected] ~]# yum install bind//Installation DNS service[[email protected] ~]# systemctl stop FIREWALLD//Turn off firewall[[email protected] ~]# Setenforce 0//Tu
Originally in this verse to explain the installation of DNS, but I found that in fact before this, but also need to explain a few basic concepts, first of all, the DNS suffix. In the previous basic chapters, we know that a domain name can be divided into the main and suffix 2 parts, where the host we can understand as a host or a network terminal name, the suffix directly determines the nature of the domai
What is DNS DNS (domain Name System, name Systems), a distributed database that maps to each other as domain names and IP addresses on the Internet, makes it easier for users to access the Internet without remembering the number of IP strings that can be read directly by the machine. The process by which the host name corresponds to the IP address is called Domain name resolution (or host name resolution).
Transferred from: http://www.office68.com/computer/14231.html DNS is the abbreviation for the domain Name System and is a core service of the Internet as a distributed database that maps domain names and IP addresses to each other, making it easier for people to access the Internet without remembering the number of IP strings that can be read directly by the machine. This is also the official statement of DNS
1. The Setup method is very simple. We found "setup" on the phone and clicked on it to enter. 2. Then we click on the set of "Wireless LAN" to find it click to enter. 3. In the Wireless LAN list, click the exclamation point on the right side of the wireless network on which the current phone is connected, as shown in the picture 4. Now we find the following DNS in the DHCP below the IP address in the open interface, click on it. 5. Then we
Use bind, dlz, and MySQL to build intelligent DNS. The DNS data can be put into MySQL. Yum list all | grep BIND contains an SDB package. You can also put our data in the database. How can I enable the DNS log function? It is not recommended to enable the log function. If the log function is enabled, the DNS performan
Every time we enter any domain name in the browser to access a website, we use the Dns protocol to perform a "Domain Name: IP" query. As a command line user, the Nslookup command is the most widely used dns-related command. As a programmer, taking c # as an example, the ip address of a domain name is probably the same as the line "System. net. dns. getHostByName
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