DNS blocking
(also DNS filtering)
DNS blocking definition
DNS blocking is a type of protection mechanism that organizations and individuals use to prevent devices on their networks from accessing specific websites or web pages. DNS blocking can be done by finding out the IP addresses of the websites or web pages to be blocked. Then, the IP addresses should be blocked, and no one will be able to access them anymore. DNS blocking is often used to prevent different types of cyberattacks. More specifically, it is useful to stop cyberattacks that attack systems by infecting them with malware. Also, some individuals and organizations use it as an anti piracy safeguard. In addition, they use it to block access to certain sites like gambling websites in the workplace.
See also: IP address blocking, anti-malware
Attacks that DNS blocking can help prevent
Malware. Malware attacks are types of cyberattacks that allow hackers to take control of a computer, network, and other devices. It is mostly done via websites, software, or emails. DNS blocking can help prevent malware attacks by blocking suspicious websites that can infect a device with malware.
Phishing attacks. A phishing attack is a type of cyberattack where a user gets tricked into sharing their sensitive data and downloading malware. DNS blocking can help prevent phishing attacks by blocking phishing websites, which are fake websites that typically use spoofed domain names.
While DNS blocking can contribute to mitigating these types of attacks, it should be used as part of a comprehensive cybersecurity strategy that includes other layers of protection, such as anti-malware software, email filters, user education, and best security practices.