Obfuscating IP Addresses

Table of contents:


You want to send someone else your Snort logs for analysis, but you don't want to give them too much information about your network.


Use the obfuscate command-line switch, -O.

snort -O -c /etc/snort.conf -l /var/log



The obfuscation switch changes all IP addresses in the logs to read xxx.xxx.xxx.xxx. If you use this in combination with the -h (homenet) option, it only obfuscates the IPs within that range; all other IPs (i.e., those of the people attacking you) remain in the clear.

See Also

Snort Users Manual

Passive OS Fingerprinting

Installing Snort from Source on Unix

Logging to a File Quickly

How to Build Rules

Detecting Stateless Attacks and Stream Reassembly

Managing Snort Sensors

Generating Statistical Output from Snort Logs

Monitoring Network Performance


Snort Cookbook
Snort Cookbook
ISBN: 0596007914
EAN: 2147483647
Year: 2006
Pages: 167

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