Malware and botnets such as ZeroAccess, Conficker and Storm need to be able to propagate and communicate. However, the fact that most organizations do not filter DNS queries means that it can be used as a covert communication channel. Data leaving a compromised system can be encoded in the DNS query and instructions can be sent back to the malware in the DNS responses without raising suspicions. This article gives an overview of this threat and describes some ways of protecting your network from it.
How DNS works
How did the event go?
At the recent Search Engine Strategies conference in freezing Chicago, many of us Googlers were asked questions about duplicate content. We recognize that there are many nuances and a bit of confusion on the topic, so we'd like to help set the record straight. Duplicate content generally refers to substantive blocks of content within or across domains that either completely match other content or are appreciably similar. Most of the time when we see this, it's unintentional or at least not malicious in origin: forums that generate both regular and stripped-down mobile-targeted pages, store items shown and -- worse yet -- linked via multiple distinct URLs, and so on. In some cases, content is duplicated across domains in an attempt to manipulate search engine rankings or garner more traffic via popular or long-tail queries. Though we do offer a handy translation utility , our algorithms won't view the same article written in English and Spanish as duplicate content. Similarly, you shouldn't worry about occasional snippets quotes and otherwise being flagged as duplicate content. Our users typically want to see a diverse cross-section of unique content when they do searches. In contrast, they're understandably annoyed when they see substantially the same content within a set of search results.
Онлайн-расследование ссылок — с мгновенным результатом
Trust Flow represents the quality of links that point to URLs and websites. A web page with higher Trust Flow than Citation Flow will usually have good-quality links. Citation Flow is a score which reflects the quantity of links that point to any given website. Citation Flow does not care whether a link is of good-quality, or poor quality. The Visibility Flow score helps you to find desirable editorial-style links on high Trust Flow pages, rather than directory-style links even when the directory Trust Flow is high. With a score that shows where a website is positioned compared to the very best sites in over categories, Topical Trust Flow illustrates the topical relevancy of a web page. Each score represents a different measure of the impact of your content.
Today we are releasing the ability to access Windows Azure Blobs using custom domain names. Windows Azure Blob storage enables applications to store and manipulate large objects and files in the cloud. The custom storage domain name feature allows you to register a custom domain name for a given storage account for anonymous blob access using that domain name. Currently we provide access to blob storage using the following domain name:. This allows us to access the blobs in that container using either:. Microsoft Azure. Enter your custom domain name. To complete the register of your custom domain name you will be asked to verify that you own the domain. Once you have registered that CNAME, then click on validate in the portal for the storage account endpoint. Windows Azure will then validate that the CNAME record exists, and if successful your custom domain name will be registered.