Contents
What can go wrong with DNS?
Here are some of the most common problems experienced by DNS and their solutions.
- Improperly Configured DNS Records. DNS problems usually stem from improper configuration of DNS records during most times.
- High TTL Values. TTL refers to time to live.
- DDOS Attacks.
- Hardware/Network Failures.
- High DNS Latency.
- Conclusion.
Can a DNS be dangerous?
Cyber attacks on Domain Name System (DNS) servers represent one of the most significant threats to Internet security today. Whether conducted for financial motives, political gain, or the notoriety of the hacker, the damage from a DNS attack can be devastating for the target organizations.
What happens if you have DNS Malware on your computer?
It can result in fraud, malware download and password theft. It happens because a program in your computer is changing the DNS address. It is called DNS Malware. In this post, we will share how you can check if your computer is infected with DNS malware, and how you can fix it. I wrote about this a couple of years ago where I mentioned:
How does a man in the middle DNS attack work?
Man in the middle DNS attacks — attackers intercept communication between a user and a DNS server, and provide different destination IP addresses pointing to malicious sites. Rogue DNS Server — attackers can hack a DNS server, and change DNS records to redirect DNS requests to malicious sites.
How does an attacker poison the DNS cache?
DNS servers, routers and computers cache DNS records. Attackers can “poison” the DNS cache by inserting a forged DNS entry, containing an alternative IP destination for the same domain name. The DNS server resolves the domain to the spoofed website, until the cache is refreshed.
What do you need to know about DNS hijacking?
Domain Name Server (DNS) hijacking, also named DNS redirection, is a type of DNS attack in which DNS queries are incorrectly resolved in order to unexpectedly redirect users to malicious sites. To perform the attack, perpetrators either install malware on user computers, take over routers, or intercept or hack DNS communication.