norton dns

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

resolution server. Foreign Public DNS servers: Google Public DNS (8.8.8.8, 8.8.4.4) Norton DNS (198.153.192.1, 198.153.194.1) OpenDNS (208.67.222.222, 208.67.220.220) OpenDNS Family (208.67.222.123, 208.67.220.123) Comodo Secure DNS (156.154.70.22, 156.156.71.22)

@ Zheng yu Summary I. symptom: Java httpclient initiates an HTTP request to the WebService interface under the x××× open. x××. com domain name from the master station data center, which is extremely slow. Troubleshooting: 1.1. wget test results No Specify the IP protocol and the interface for wget to access it. The time is 4.163 seconds, which is basically a waste of host parsing. If the IP protocol of the specified wget is IPv4, The wget test takes only 0.096 seconds. 1.2. WGEtCompari

Document directory DNS structure: Header section: Question: Resource Structure: 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 add

When NetlogonWhen the service cannot register or cancel registering multiple resource records, the System Event Log will recordNetlogon5781Error message. The event description does not contain the names of these resource records. In addition, the event description may be "no ",DNS servers are available ", note: the common cause of these errors is that the domain controller references itself as the DNS

[Daily] DNS iterative Query Process and dns query Process DNS is an application layer protocol, and the port numbers are tcp/53 and udp/53.DNS query process, such as accessing www.test.com1. The client queries www.test.com2. query the preferred DNS server, in Linux/etc/re

In the previous blog, we described how to create a common DNS record in a DNS server, and in this article we'll show you how to configure a secondary server for DNS, as well as a stub zone similar to a secondary zone. A DNS secondary server is a fault-tolerant design, considering that once a

Each entry in a database is called a resource record (RR) Resource record format: The second field in the first section, the third field, the fourth field (resource record type), and the fifth field Name TTL in (Internet) rrtvalue If TTL is not written, you must specify a default value in the global variable. The TTL value can be omitted. TTL 600; For example: Name [TTL] inrrt (resourcerecordtype) Value Www.zledu.com. ina1.1.1.1 1.1.1.1inptrwww.zldu.com. (reverse resolution) Resource Reco

First, the early topology map planning DNS dual NIC; eth0:192.168.6.248 eth1:192.168.7.248 Telecom users: 192.168.6.X this network segment analog IP address 6.248 6.244 Unicom Users: 192.168.7.X This network segment analog IP address 7.248 7.244 Other users: any Site Cluster Address: Telecom Access: 192.168.1.1 192.168.1.2 Netcom Visit: 192.168.2.1 192.168.2.1 Other users: 192.168.3.1 192.168.3.1 Second, the configuration of rsync services,

The installation of DNS servers and clients is briefly described in the previous section. Although there are few knowledge points involved, there are already two parts of the DNS system that are indispensable, that is, DNS servers and clients, and the DNS system includes zone and resource records, which are primarily d

How does the DNS for Linux be set up? How to modify DNS addresses under LinuxHttps://jingyan.baidu.com/article/870c6fc32c028eb03fe4be30.htmlThe location of DNS settings under Linux is primarily,1 network card settings configuration file inside the DNS server address settings, 2. System default

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

And then, in the unfinished part of section nineth, we'll go on to explore the properties of the DNS server, the main content today is the Advanced tab, which is also an important part of the DNS attribute, but interestingly, we rarely modify the content here. However, the meaning of each option needs to be carefully understood. Open the DNS properties and locat

Preface:If you are lucky to be seen by a friend and find something wrong in this article, you may want to criticize and correct it. If you have any questions, we hope you can discuss them together. Because I have not registered a valid domain name, I only need to configure the DNS server in my LAN. DNS Environment Planning Vm ip Address: 10.170.2.10 master DNS