What is sfPortscan?

This is the traditional place where a portscan takes place. One of the most common portscanning tools in use today is Nmap. Nmap encompasses many, if not all, of the current portscanning techniques. sfPortscan was designed to be able to detect the different types of scans Nmap can produce.

What are Snort preprocessors?

Preprocessors give Snort the ability to handle data stretched over multiple packets. Snort uses preprocessors to do detection that doesn’t fit its model of flexible pattern matching. Preprocessors provide Snort with much of its anomaly detection capabilities, which can detect some attacks that might not yet have rules.

What are Snort rules?

Rules are a different methodology for performing detection, which bring the advantage of 0-day detection to the table. Unlike signatures, rules are based on detecting the actual vulnerability, not an exploit or a unique piece of data.

What are the rules and regulations of football?

Football: Rules. If the offense does not get 10 yards in four plays, the other team gains possession of the football at the current line of scrimmage. In order to keep the other team from getting good field position the offense can punt (kick) the ball to the other team intentionally. This is often done on 4th down,…

What is the safety position in American football?

Safety (gridiron football position) Safety, historically known as a safetyman, is a position in American and Canadian football played by a member of the defense. The safeties are defensive backs who line up from ten to fifteen yards from the line of scrimmage.

Are there rules for defensive positions in football?

The defensive players may take any position they want and can move about their side of the football prior to the play without restriction. Although there are certain defensive positions that have become common over time, there are no specific rules defining defensive positions or roles.

How does the 10 yard rule work in football?

Each team gets 4 chances (downs) to move the ball 10 yards forward. Once they pass the 10 yards their downs reset and they start again for another 10 yards. After 4 downs have passed and they have failed to make it over the 10 yards required the ball will be turned over to the defensive team. Players & Equipment