Spoink is an output plugin for snort that works by blocking access to attackers using OpenBSD's pf API. Spoink uses a pf table and a blocking rule to stop "attackers" from accessing your system. To protect from false negatives you must have a whitelist full of IP addresses. It only blocks attacks defined in snort rules.
lxt (linuXtree) is a file manager program that was inspired by the popular DOS program XTreeGold. Most of the keyboard shortcuts are the same and the interface is similar, but it has been modified a bit to better suit the features of Unix such as long file names and file permissions.