unblock dns server

Most of us use DNS primarily for domain name resolution, and there is a special requirement recently: passing special data through the DNS protocol. Turn over the Internet and finally find a powerful C # DNS ToolPak ARSoft.Tools.Net Library, thanks to CodePlex, thanks Alexreinert!For the DNS protocol, refer to the Micr

DNSRelated ConceptsDNS (domain Name System), a distributed database of domain names and IP addresses that are mapped to each other 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 of obtaining the IP address of the host name through the hostname is called Domain name resolution (or hostname resolution). The DNS protocol runs on top of th

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 correspo

DNS (Domain Name server) is a huge distributed database that provides domain-specific information through a domain name server, which is responsible for translating domain names into IP addresses. It is not possible to put all domain name information from the Internet on the same computer, so the DNS system uses a tree

The computer used to install the DNS server must use a static IP address, such as 172.16.16.99. After the system downloads the DNS server components, click the Start-Administrative Tools-DNS command to open the DNSMGMT console, as shown in Figure 1. In this console, you can

When performing software sample analysis (mainly analyzing the network traffic of the sample ), inevitably, you need to set up a DNS server to use IP spoofing technology to try to obtain the network traffic of software samples. The following uses CentOS5.2 as an example to describe how to set up a DNS server on Linux.

Event cause and Analysis This event is a linkage event, mainly divided into two parts: 1. the DNS server of the dnspod site is attacked by DDoS attacks with over 10 Gbps traffic. It is suspected that it is a competition between private online game servers, as a result, a private server operator launched thousands of zombie hosts to launch DDoS flood attacks

system expansion capability. More than two servers to work together must involve load balancing problem, the current commonly used load balancing technology are: NAT load balancing, reverse proxy load balancing and DNS load. NAT load Balancing maps an external IP address to multiple internal IP addresses, dynamically converts each connection request to an internal server address, and leads the external c

Install Bind on CentOS to build a DNS server Because the company's internal network needs to be tested, domain names are used to access the company's internal server. However, the vro does not have the domain name forwarding function. Therefore, the DNS method is used. Background: One internal

DNS (domain Name System) is a long history method for assigning a domain name to a computer with an IP address so that the computer has a character name. If the IP address is 207.46.193.254 computer that is Microsoft server www.microsoft.com. DNS is well designed and works most of the time. However, there are always some unsatisfactory circumstances, it will stri

Configuration and management of DNS servers****************The first thing to know is the following files related to domain name resolution/etc/hosts-Early (DNS) method for resolving host names, typically consists of three fields: IP, host full domain name, alias/etc/resolv.conf--Specifies the parameters of the DNS server