Investigate how CVE-2015-5477 CloudFlare Virtual DNS protects its users
Last week, ISC released a patch to fix a remote vulnerability in the BIND9 DNS server. This vulnerability causes the server to crash when processing a certain data packet.The announcement indicates that an error occurs when the server processes a TKEY-type query. This error causes assertion
Source: http://www.itechzero.com/dns-hijacking-dns-pollution-introduction-and-public-dns-recommend.htmlWe know that some network operators for some purposes, some of the DNS operation, resulting in the use of the ISP's normal Internet settings cannot obtain the correct IP ad
keyword is found, it is immediately disguised as the DNS server (NS, Name Server) of the target domain name to the queryer.Returns false results.
DNS contamination symptoms: some of them are currently beingAccess prohibitedWebsites are basically implemented through DNS pollution, such as YouTube and Facebook.Solution
For DNS
We all know that we need to be able to access the Internet, we must use Dns,dns is the domain Name system, can make users more convenient use of the Internet, and not to remember to be directly read by the machine IP string, also known as Domain name resolution. Baidu has also been hacked to DNS, resulting in inaccessible. As the entrance of the Internet,
At present, the more authoritative public DNS server providers have the Opendns,google-Dns,norton DNS, what are the actual access speeds of these DNS servers? This is directly related to the speed of our Internet access, after all, the fast speed is the king. The author comp
Baidu officially announced the launch of public dns:180.76.76.76, Baidu public DNS flagship cloud protection, no hijacking and precision of the three major characteristics. The official says it can prevent malicious jumps and malicious ads, while CDN networks across the country can make positioning more accurate.
DNS stands for Domain Name System, which is the domain name resolution system. It helps you find a path on the Internet. Its function on the Internet is to convert a domain name into an IP address that can be recognized by the network. At present, domestic telecom operators use DNS hijacking and DNS pollution to interfere with normal internet access and prevent u
Build a route, DNS, and DHCP server in a simulated Public Network EnvironmentToday, we will continue to add a server in the test environment to simulate a vro in the public network environment. This server can simulate common vro functions in the public network as much as possible, it includes three functions: routing,
Tags: blog HTTP ar Div on 2014 art log htmlDNS server diagram:To serve internal LAN applications, such as domains, local websites, forums, OA, and ERP systems, we usually build local DNS servers.Set the local DNS server as the preferred DNS, and access to the local system is faster.But how does internal DNS resolve
Common common DNS server addressesDNS (domain Name System), which is a distributed database that maps domain names and IP addresses to each other, allows people to access the site through a relatively well-remembered domain name, instead of a string of numbers. at present, domestic operators through the use of DNS hijacking and DNS pollution method, interference
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.