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Network Security
Network security consists of the provisions made in an underlying computer network infrastructure, policies adopted by the network administrator to protect the network and the network-accessible resources from unauthorized access and the effectiveness (or lack) of these measures combined together.
Network Sniffing
Network sniffing refers to a computer connected to a network through "promiscuous mode", listening to every bit of traffic that goes by on the network and captures all the data. Normally a computer's network connection ignores traffic that is not addressed to it, but with sniffing software the computer will pick up everything. This is an easy way to pick up clear text passwords. E-mail programs frequently use clear text passwords.
From : http://www.networkdictionary.com/security/n.php#13
Snort
Platform : Unix like
License : Free, Open Source
Appears in these categories : Intrusion Detection, Security Network Security
License : Free, Open Source
Appears in these categories : Intrusion Detection, Security Network Security
Snort is an open source network intrusion prevention system, capable of performing real-time traffic analysis and packet logging on IP networks. It can perform protocol analysis, content searching/matching and can be used to detect a variety of attacks and probes, such as buffer overflows, stealth port scans, CGI attacks, SMB probes, OS fingerprinting attempts, and much more.
Snort uses a flexible rules language to describe traffic that it should collect or pass, as well as a detection engine that utilizes a modular plugin architecture. Snort has a real-time alerting capability as well, incorporating alerting mechanisms for syslog, a user specified file, a UNIX socket, or WinPopup messages to Windows clients using Samba's smbclient.
Snort has three primary uses. It can be used as a straight packet sniffer like tcpdump(1), a packet logger (useful for network traffic debugging, etc), or as a full blown network intrusion prevention system.
Snort uses a flexible rules language to describe traffic that it should collect or pass, as well as a detection engine that utilizes a modular plugin architecture. Snort has a real-time alerting capability as well, incorporating alerting mechanisms for syslog, a user specified file, a UNIX socket, or WinPopup messages to Windows clients using Samba's smbclient.
Snort has three primary uses. It can be used as a straight packet sniffer like tcpdump(1), a packet logger (useful for network traffic debugging, etc), or as a full blown network intrusion prevention system.
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