DNS recursive query and iterative query
Summary
There has always been confusion about the "recursion" and "iteration" approaches to DNS queries. Most people just tell you. "DNS clients request recursive queries to DNS servers," and "query requests between DNS servers are i
One of the most important components of any current TCP/IP network is the DNS server. A number of things a DNS server can accomplish, such as parsing an Internet URL into an IP address, resolving the host name on the local network, and providing the infrastructure on which the Windows Active Directory depends. Therefore, deploying a DNS server is not a very simpl
We can use commands at the command prompt to clear the information in the DNS client cache. After the client executes the "Ipconfig/flushdns" command, the "ping" command appears after the letter is prompted to resolve the problem.
It is worth noting that, in the administrative tools, open the Services tool and find the DNS client entry, which does not cache DNS
Because it's all Windows platforms, it's nothing. Well, take a look at our environment:
Original DNS server:
Host name: WIN08-01 IP Address: 10.200.201.11
New DNS server (temporary hostname and IP address), because after successful migration, the host name and IP address will be changed to the same as the original DNS, the original
Because the company has colleagues in charge of Dalian, Shenyang Two cities, often in both directions back and forth, to each city, they have to manually change the corresponding network configuration, and to live in the field is the hotel, the hotel is automatically access to the Internet IP, but also the network settings canceled, really troublesome! So I thought of writing a batch process! To solve this problem! The main command to use is netsh.-The first method is to set up the network confi
DNS Overview: DNS is the domain Name System, which is a distributed database, organized into a domain hierarchy of the structure of the computer and Network service naming system. Its role is: to transform the domain name into a network can identify the IP address, the results of the query to save, and told the client.
Second, DNS query process
1. Local resolut
New features provided by DNSSupports Active Directory AD)Unlike NT 4.0, the domain name of the Active Directory in Windows 2000 Server adopts a DNS name similar to that in the Internet, and the DNS is integrated into the design and implementation of the Active Directory. If the Active Directory is installed on the Server, Windows 2000 Server automatically installs and configures the
In the actual application process may encounter the problem of DNS parsing errors, that is, when we access a domain name can not be completed to resolve the work of the IP address, and the direct input of the Web site IP can be normal access, this is because of DNS resolution failure caused. The probability of this phenomenon is relatively large, so this article will be from the beginning of zero to teach r
Interface IP Add address "localconnection" gateway=172.20.0.254 gwmetric=1This command sets the default gateway for LocalConnection to 172.20.0.254, and the default gateway has a metric of 1Second, add DNS:netsh interface ip add dns?Usage: Add DNS [name=]Parameters:Mark valuesName-names of the interfaces that add DNS servers.Addr-The IP address of the
To view DNS time records for the secondary domain, three error events were found!
Look at Microsoft's help, if a machine with NAT and DNS services will be the same situation!
Network address translation (NAT)
DNS Server
More Wonderful content: http://www.bianceng.cnhttp://www.bianceng.cn/Servers/DNS/
NAT has
At the time the DNS server runs, a set of Log_info-level log information, shown below, is generated every hour to feed back the DNS server's running status:Dec 10:23:52 www named[1033]: cleaned cache of RRsetDec 10:23:52 www named[1033]: USAGE 977797432 976760631 cpu=6.55u/6.24s child cpu=0u/0sDec 10:23:52 www named[1033]: nstats 977797432 976760631 0=2 a=13192cname=321 ptr=11204 mx=1173 txt=4 aaaa=32 any=4
Reference URL: http://www.unixmen.com/dns-server-installation-step-by-step-using-centos-6-3/DNS (Domain name System) translates host names or URLs into IP addresses. For example, if "www.unixmen.com" is in the browser,DNS server translates the domain name into an IP address associated with it, and DNS servers is used t
DNS OverviewDNS (Domain Name System)Role: Manage the "Household Register" of hosts-Host Name: IP address, which is a distributed city Database SystemOrigin: the earliest host resolution relies on the hosts file and is maintained by the NIC (Network Information Center). Later, the number of hosts became very large and the network became increasingly complex, resulting in DNS servers.
Structure of the
What is DNS? What's the role of DNS? We hang on the Internet all day, the estimates for these problems are also somewhat vague, DNS is the domain Name system, the abbreviation, is a core service of the Internet, DNS, domain name resolution system, is not a simple service, and a wide range of global domain name resoluti
The premise for the commercial use of IPv6 is that IPv4 addresses are exhausted. For this reason, we urgently need the IPv6 protocol to improve this situation. So how does IPv6 distribute DNS servers? Next we will analyze the principles in depth. Hope to help you.
What is the architecture of the IPv6 Domain Name System?
The DNS in the IPv6 network is consistent with the IPv4
We may encounter DNS resolution errors during the online process, that is, when we access a domain name, we cannot resolve it to an IP address, however, you can directly enter the website IP address for normal access, which is caused by a DNS resolution failure. This phenomenon has a high probability of occurrence, so this article will teach you some basic methods to eliminate
Kube-dns compositionKube-dns can solve the service discovery problem, k8s registers the service name as a domain name into Kube-dns, and can access the services it provides through the name of the service.Kube-dns of four components: ETCD, which is used to save DNS rules.
Starting from July 16, some local users (mainly in XI ' an telecom and some of the local unicom users) to me, unable to visit my blog, after my test to find out, the reason is that some areas of telecommunications operators blocked my blog DNS Resolution service provider GoDaddy DNS services, Xi ' an telecom's DNS server 218.30.19.40 has some of the
Frequent internet friends may often go to Sina, Sohu and other large websites, only need to enter their web site in the browser to achieve access, it seems very simple, but technically speaking, but contains a complex process: in the Web page, first in the browser input site domain name, Then the browser will be based on the local DNS server settings will be entered into the site domain name to the corresponding IP address, and then to the IP correspo
How do you see if DNS is hijacked? Generally speaking, there are 2 cases of DNS hijacking, one is the router DNS is hijacked, the other is computer DNS is hijacked. For these 2 types of DNS hijacking, the following describes how to view each.
First, how to see if the
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