pfsense dns

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

Each computer in the Internet has a unique IP address that can be connected to the corresponding host by IP address. However, the IP address is a number of abstract numbers, inconvenient memory, it is best to use some meaningful combination of characters to represent a host, resulting in the domain Name System (dns,domain name systems). DNS addresses a number of meaningful combinations of characters to an a

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

With the continuous development of information technology, people's requirements for IT infrastructure are also higher, beginning to require the provision of rapid delivery, batch deployment, data analysis, network virtualization and other new needs, the major manufacturers also for their products to continue to improve, DNS began in Windows Server above just provide the simplest domain name resolution, caching, forwarding and other functions, and lat

Author: Spacefox, Secure Sphere CrewConan, OS3 (Open Source Software Society)/CICC Singapore (Center of International Cooperation for Computerization in Singapore)Source: evil baboons Information Security Team (www.eviloctal.com) Overview: What is DNS spoofing?DNS Spoofing is the art of changing the original IP address of DNS. For better understanding, let's look

1. experiment environment 1.1 requirements Configure forward parsing bind Configure reverse resolution bind Configure bind of secondary DNS Implement regional transfer between primary and secondary DNS 1.2 Environmental Planning Primary DNS: centos6.8-01 172.24.8.10 linuxmaster.aliyun.com Secondary DNS: centos6.8-

In this article, the relevant program T-DNS to support any host within the LAN to initiate dns id spoofing attacks, so that any website accessed by it is directed to a custom WEB server, such as your personal homepage. You can download this software from SafeChina.Download link: http://www.safechina.net/download/click.php? Type = original site id = 1038791088> A Domain Name System (

DNS is divided into client and server. The client plays the role of question, that is, to ask the server a domain name, and the server must answer the real IP address of this domain name. The local DNS first queries its own database. If your database does not exist, you will ask the DNS set up on the DNS. After you get

Beijing DNS address: 202.96.199.20.202.96.0.20.202.106.0.20 202.106.148.1 202.97.16.195 Shanghai DNS address: 202.96.199.132 202.96.199.20.202.96.209.5 202.96.209.20. Tianjin DNS address: 202.99.96.68 10.10.64.68 Guangdong DNS address: 202.96.128.143 202.96.128.68 202.96.128.110 Shenzhen

I. Domain Name and domain name resolution NetworkIn order to distinguish each host, you must assign a unique address to each host. This address is called "IP AddressAddress ". However, these numbers are hard to remember, so they are replaced by domain names. HoweverThe host can be accessed only when the domain name is converted to the corresponding IP address.The DNS service, also known as the domain name resolution service, provides mutual conversio

Users who frequently access the Internet may often go to large websites such as Sina and Sohu. They only need to enter their URLs in the browser to access the website. It seems very simple, but technically speaking, but it contains a complicated process: when accessing a webpage, first enter the website domain name in the browser, then, the browser converts the entered website domain name to the corresponding IP address based on the settings of the local DNS