What is Dos/DDos?

DOS stands for Denial of Service and DDos stands for Distributed Denial of Service. It’s an attack that makes the website unreachable or unavailable by sending lots of traffic at once that the website can’t handle and responds SERVER ERROR 500.

Difference Between Dos and DDos?

In the Dos attack as shown in the above image a single computer attacks on the server but in the DDos attack a lot of computers send a large number of packets to the server at a single time.

Type of DOS/DDoS attacks

There are several types of DDoS attacks, each using different methods to flood the target. Some common types include:

• TCP/UDP Flood: This type of attack floods the attack large number of TCP or UDP packets, increasing the target’s network resources.
• HTTP Flood: This type of attack floods the target’s web server with a large number of HTTP requests, increasing the server’s resources until it crashes or returns Server error 500

Botnets

Botnets are often used to perform a good DDoS attack. Actually, botnets are the slaves or infected computers by an attacker that follows are command of the attacker and request websites to perform DDoS attacks. Botnets can be any personal computers or cloud-based computers

Prevention

• Using firewalls — While firewalls won’t protect your app or server from complex DDoS attacks, they can still effectively handle simple ones.
• Installing the latest security patches — Most attacks target specific software or hardware vulnerabilities, so deploying all patches on time can help you lessen the risk of attack.
• Disabling unused services — The fewer applications and services hackers can possibly attack the better. Make sure to disable all unneeded and unused services and applications to improve the security of your network.