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What is DNS Poisoning?: A Comprehensive Guide


DNS poisoning is a kind of cyberattack that incorporates deceiving the Space Name Framework (DNS) into rerouting clients to malevolent sites. It is in some cases alluded to as DNS mocking or DNS reserve poisoning. We will go over DNS poisoning in this article, including what it is, the way it happens, and how to keep away from it.

What Is Poisoning by DNS?

Cybercriminals utilize a method called DNS poisoning to mess with a space name server’s DNS store. The IP locations of sites that are frequently perused are kept in an impermanent data set called the DNS cache. The DNS server scans its store for the IP address connected to a space name when a client fills in the location of a site. The DNS server scans other web servers for the IP address on the off chance that it can’t be situated in the reserve.

An aggressor utilizes a poisoning by DNS assault to embed counterfeit information into the DNS cache. Thus, when a client enters the location of a site, the DNS server returns the wrong IP address. After that, at that point, the client is taken to a vindictive site that copies the reliable one.

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How Do You Treat DNS Poisoning?

There are various methods for carrying out DNS poisoning. Utilizing a man-in-the-middle (MITM) assault is one popular technique. The communication between the user and the DNS server is intercepted by the attacker in this kind of attack. Subsequently, the hacker modifies both the DNS server and the user’s device’s cache to route the user to a malicious website.

DNS server hijacking is another way to cause DNS poisoning. In an attack of this kind, the attacker takes control of the DNS server and modifies its records to send visitors to a malicious website.

Poisoning Risks

This may result in detrimental effects. The following are a few dangers connected to DNS poisoning:

Data Theft: A hacker may lead a user to a phishing website to obtain their data.

Malware Infection: A hacker could lead a victim to a website that installs malware on their system.

Halted Security upgrades: A hacker may create a fake website for an ISP to keep the user’s PC from getting security upgrades.

Censorship: By sending users to an alternate domain, poisoning can be used to censor websites.

DNS poisoning
@image: YpuTube

How to Guard Against Poisoning

The following actions can help shield you from DNS poisoning:

Make use of a trustworthy DNS provider: Make use of a DNS provider with a solid security record.

Use HTTPS: To prevent your data from being intercepted, visit websites that use HTTPS encryption.

Update your program frequently: Update your software and operating system to avoid security holes that hackers could exploit.

Employ a VPN: To encrypt your internet traffic and defend against DNS poisoning assaults, use a virtual private network (VPN).


Q. 1. Is DNS poisoning frequently occurring?

A. 1. Poisoning by DNS is a common cyber threat, with cases documented all around the world. Being alert is essential to preventing these kinds of attacks.

Q. 2. How can I prevent DNS poisoning on my system?

A. 2. Effective ways to improve security include putting DNSSEC into practice, utilizing trustworthy DNS resolvers, and maintaining the security of your DNS server.

Q. 3. Are all sectors of the economy susceptible to DNS poisoning?

A. 3. While all industries carry some risk, some may be more vulnerable than others due to lax security protocols.

Q. 4. Can DNS poisoning be used to target specific users?

A. 4. Sure, specific users could be targets. Cybercriminals frequently take advantage of holes in household networks or personal devices.

Q. 5. Is DNSSEC a 100% secure way to prevent DNS poisoning?

A. 5. Although DNSSEC greatly improves security, no method is infallible. A comprehensive strategy for cybersecurity is advised.


AI was used to conduct research and help write parts of the article. We primarily use the Gemini model developed by Google AI. While AI-assisted in creating this content, it was reviewed and edited by a human editor to ensure accuracy, clarity, and adherence to Google's webmaster guidelines.

Tech Today India
Tech Today India
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