You can selectively
recover file types from disk images (foremost) or check and recover lost partitions
(testdisk).
Dealing with intruders??”Tools such as Snort (www.snort.org) enable you to analyze
network traffic in real time, as well as log and analyze data as attacks are happening.
Honeypots let you watch intruders??™ moves as the honeypots lead intruders to believe
they??™ve compromised your system. Honeypots in security-related Linux CDs include honeyd
(http://honeyd.org), thp, and thpot (www.alpinista.org/thp). Kill zombies
from DDoS attacks with zz.
Using and analyzing encryption techniques??”Many tools enable you to use encryption
techniques to protect your data and find when others have tried to compromise it. GNP
privacy guard (gpg) is used for verifying the authenticity of computers and people. For
setting up virtual private networks, there are stunnel and super-freeSWAN VPNs. You can
find images (giffshuffle, stegbreak, and stegdetect) and music (mp3stego) that contain
hidden messages created by a technique called steganography.
Managing a firewall??”Bring a firewall up quickly or assess what??™s happening on a running
firewall. The blockall script can block all inbound TCP traffic, flushall flushes your
firewall rules, and fwlogwatch can monitor firewall logs.
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