They are essential to investigate issues on the system. Log management is absolutely critical for IT security.
Servers, firewalls, and other IT equipment keep log files that record important events and transactions. This information can provide important clues about hostile activity affecting your network from within and without. Log data can also provide information for identifying and troubleshooting equipment problems including configuration problems and hardware failure.
It’s your server’s record of who’s come to your site, when, and exactly what they looked at. It’s incredibly detailed, showing:
- where folks came from
- what browser they were using
- exactly which files they looked at
- how long it took to load each file
- and a whole bunch of other nerdy stuff
Factors to consider:
- legal requirements for retention or destruction
- company policies for retention and destruction
- how long the logs are useful
- what questions you're hoping to answer from the logs
- how much space they take up
By collecting and analyzing logs, you can understand what transpires within your network. Each log file contains many pieces of information that can be invaluable, especially if you know how to read them and analyze them.