December 2002
Intermediate to advanced
408 pages
10h 1m
English
Content preview from Maximum Wireless Security
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Log File Monitors
The simplest of IDSs, log file monitors, attempt to detect intrusions by parsing system event logs. For example, a basic log file monitor might grep (search) an Apache access.log file for characteristic /cgi-bin/ requests. This technology is limited in that it only detects logged events, which attackers can easily alter. In addition, such a system will miss low-level system events, because event logging is a relatively high-level operation.
Log file monitors are a prime example of host-based IDSs, because they primarily lend themselves to monitoring only one machine. In contrast, network-based IDSs typically scan the network at the packet level, directly off the wire like a sniffer. Network IDSs can coordinate data across multiple ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.