Slowloris or session attacks
A type of DoS attacks targeting streaming web servers – the attacker tries to establish many HTTP connections with the targeted server and keep them open as long as possible by sending partial requests and HTTP headers, with the requests never completing. With the server keeping the connections open, its pool of simultaneous connections eventually maxes out, so the server begins to refuse further connections to clients.
Other terms in this category
UDP floodTeardrop AttackICMP floodPing floodIP fragmentation attackSYN/ACK floodRST/FIN floodHTTP floodRecursive HTTP GET floodVoIP floodNTP floodDNS AmplificationIP Null AttackUDP floodMITM (man-in-the-middle) attackSYN flood, or SYN attackSIP malformed attackSNMP reflection attackCharGEN floodMS SQL reflection DDoS attackMemcached DDoS attack