All three methods implement the same mechanism of attack. Some other options include timeout, TCP/UDP message, Port and threads. You can select the method of attack on the target server.

The tool has three chief methods of attack: TCP, UDP and HTTP.

The IP address of the target is used in place of an internal local network where DNS is not being used. You can also enter the IP address of the target system. The tool takes the URL of the target server on which you want to perform the attack. A would-be hacker need only then select some easy options (address of target system and method of attack) and click a button to start the attack. The tool is able to perform a simple dos attack by sending a large sequence of UDP, TCP or HTTP requests to the target server. With a DOS attack, many computer systems connected to the internet will try to flood a server with false requests, leading to a service disruption. In this way, the server will not be able to handle the requests of valid users. Low Orbit Ion Cannon (LOIC) is one the easiest DDoS tools available, DoS (Denial of service) attack is one of the more powerful hacks, capable of completely taking a server down.

Use wireshark to find irc servers