Definitions for "Land Attack"
A type of Denial of Service (DOS) attack which confuses and crashes a number of Operating Systems (especially Windows 95) or uses up the CPU so the system can't do anything else (such as in Windows NT). A Land Attack is performed by launching TCP/IP packets with the same source and destination IP address and port. There are freely available tools that anyone can download and use which will perform a Land Attack.
a DoS (Denial of Service) attack that consists of sending a special poison spoofed packet to a computer, causing it to lock up
a remote denial-of-service condition caused by sending a packet to a machine with the source host/port the same as the destination host/port