People also ask
How do I install the PSAD intrusion detection system on Ubuntu?
The psad intrusion detection system is available in Ubuntu鈥檚 default repositories, so it can be easily acquired through apt: sudo apt-get update sudo apt-get install psad In order to configure mail delivery to alert the administrator, you will be asked to configure the postfix mail server.
What is the PSAD tool?
The psad tool, which stands for port scan attack detection, is a piece of software that actively monitors your firewall logs to determine if a scan or attack event is in progress. It can then alert administrators, or take active steps to deter the threat.
What are the 鈥渄anger levels鈥?declarations in PSAD?
One section that you probably want to take a look at is the 鈥渄anger levels鈥?declarations. These levels are a way for psad to categorize threat levels. They are automatically determined by the number of packets involved in an event, but you can assign certain types of traffic to be a certain danger level also.
What is intrusion detection and how does it work?
Intrusion detection systems are used to log suspicious connections and report when it looks like unusual activity is taking place. Some programs are used purely as a notification system, while others can actively attempt to block traffic that appear to be intent on causing harm.