unblock dns

Do not know if you have not used to set up DNS to maximize the speed of computer network optimization, set up DNS everyone is relatively unfamiliar, because generally also rarely mentioned, because the computer is generally the default is to automatically obtain DNS, do not need us to set up, but we should have heard that the computer can be on QQ but not open th

DNS Literacy Series 3: Smart DNS (BIND + VIEW) preface: Smart DNS is the function implementation of BIND + VIEW. In China, the first thing we put smart DNS into the market was even (how can we feel unmodest ). I think the introduction of the VIEW function in BIND9.X is not targeted at China, but this function can solve

Recently met a domestic Daniel, heard a call DNS tunnel technology, after a study, found very interesting, record. what is DNS tunnel. DNS tunnel is the DNS tunnel. From the name point of view is to use the DNS query process to establish tunnels, transfer data. Why use

Description We know that some network operators perform DNS operations for some purpose, so that the correct IP address cannot be obtained through the domain name through the normal internet access settings of the ISP. Common methods include:DNS hijackingAndDNS pollution. DNS hijacking and DNS pollution are very common in tianchao. Generally, after an error or no

Intelligent DNS is the function realization of bind+view. At home, the first smart DNS into the market is a I (how to give people not humble feeling it). I think bind9.x introduced view (view) function is not for China, but this function just can solve the interconnection between network operators in China, is the pie in the sky. This article unifies oneself these several years to erect maintains the intell

We know that some network operators perform DNS operations for some purpose, so that the correct IP address cannot be obtained through the domain name through the normal internet access settings of the ISP. Common means include DNS hijacking and DNS pollution. What is DNS hijacking?

Do not know if you have not used to set up DNS to maximize the speed of computer network optimization, set up DNS everyone is relatively unfamiliar, because generally also rarely mentioned, because the computer is generally the default is to automatically obtain DNS, do not need us to set up, but we should have heard that the computer can be on QQ but not open th

Pre-Erection Preparation:To set up a DNS server, you must install a software program that provides a DNS service, the BIND software, that can be installed using the following command:Yum install-y bind-chroot Bind-utis 1. Modify the master configuration file/etc/named.confThis server is relatively simple to set up, that is, in fact, this [so-called DNS ser

What is DNS hijacking?DNS hijacking also known as domain name hijacking, refers to the use of certain means to obtain a domain name of the analytic control, modify the resolution of the domain name, resulting in access to the domain name from the original IP address to the modified designated IP, the result is a specific URL can not access or access to the false web site.

We know that some network operators perform DNS operations for some purpose, so that the correct IP address cannot be obtained through the domain name through the normal internet access settings of the ISP. Common means include DNS hijacking and DNS pollution. For details about the differences between DNS hijacking and

In the Web experience, we often encounter this situation, that is, when calling Baidu union, Google alliance, and domain name files outside the domain name where the current webpage is located, the request latency is very serious. Is there a way to solve the serious latency of such requests? What is DNS Prefetch DNS Maps domain names to IP addresses. When a website is accessed through a domain name,

"Experimental description"Experimental environment: Add a server ns2.test.com, IP 192.168.0.112;Experimental purpose: The new server is configured to 192.168.0.111 this primary DNS server from the DNS server;" conditions for implementing master-Slave Synchronization"1, the master-slave server time must be synchronized, using NTP and time server periodic synchronization time;[Email protected] ~]# vim/etc/cro

DNS viewsWhat are DNS Views (DNS view)?The DNS view is based on different customer sources (referred to as IP), and the DNS server uses different data files to complete the parsing process. In this process, the DNS server is the s

Recently, my colleague reported that during the NSLookup test on the Intranet, I found that when I used the Intranet DNS server 192.168.1.1 for resolution, the DNS server responded very quickly and did not Any errors. However, when the DMZ server 51.144.198.99 is used for testing, the system always prompts that the request times out and returns the correct resolution. We suspect that the firewall we are usi

Secondary DNS server configuration******************The purpose of the secondary server: First, as a backup of the primary DNS server, the second is to share the load of the primary DNS server.The configuration of a secondary DNS server is relatively straightforward, because its zone database files are periodically cop

Have you ever encountered a DNS error or can be on the QQ but not open the Web page situation? Or is it too slow to open the page? These could be DNS setup errors or no settings, so here's how to troubleshoot DNS errors and how to set up DNS to navigate the web smoothly. Tools/raw Materials Windows Xp/vista Treewalk

DNS is the basic service of the internet, and bind is the most popular open-source DNS software. Because it is very popular, it is very aggressive. Therefore, we need to build a secure DNS server. There are several measures to build a secure DNS Service (for basic bind compilation and installation and configuration, re

Article Title: RHEL4-DNS Service (8) DNS Client configuration. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. The previous articles introduced the configuration of DNS servers (for details, see :《

In network optimization and network security protection, we may need to use to modify the DNS server address, the next small series to share with you how to modify the DNS address, here to the current WIN8 system as an example, teach you how to modify the computer DNS address, the need for friends may wish to refer to. How to modify

For domain name management, we must select a third-party DNS service provider when using domain name resolution During website construction, even free domain names are more stable than the original domain name platform. After all, most domain name registration platforms only provide domain name registration services. Stable resolution services are specialized by third-party businesses.If we are a Chinese website, general users will choose DNSPOD, CLOU