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DNS

What is DNS? Some basic concepts

What is DNS? DNS is the Domain Name System, or the hierarchical system of nomenclature that orders the names of members who connect to IP networks, such as the Internet. In this article we will briefly learn what DNS is, how it works, what it is used for and some of its advantages and disadvantages. What is DNS? Shall we begin?

Types of DNS Attacks and How Application Monitoring Can Help

DNS, the Domain Name Service, is the Internet service that translates IP addresses into hostnames, and visa versa. It enables you to type www.exoprise.com in a browser, or send an email to someone at that domain, and have your request actually go to 35.172.52.247. As a vital part of the Internet infrastructure, DNS attacks can have a serious impact on your online operations, including access to your website and email.

DNS Hijacking: What You Need to Know

Crashed websites and slow loading pages can be devastating for any site owner. But there’s another type of threat that often goes undetected. A report published by FireEye on Thursday details a particular type of DNS hijacking that allows hackers to easily steal information. These attacks have been going on for approximately two years and involve three different methods that compromise websites without alarming users.

Dynamic DNS & Falco: detecting unexpected network activity

Since the inception of Falco, we’ve seen users write custom rules covering a number of different use cases. Because Falco is behavioral monitoring with a syntax that leverages system calls, you can write a rule for just about anything: opening a file, becoming root, or making a network connection.

Monitoring DNS Records for Wildcard Values

Back in 2016, we added support for monitoring wildcard DNS records. Wildcard DNS records are used to serve requests for otherwise non-existent domain names. Today we’re pleased to announce that we’ve extended our support for using wildcards in DNS records monitoring. DNS Check now allows you to specify a wildcard (*) in place of some DNS record values, such as an A record’s IP address to indicate that any value is acceptable, but the record must exist.