Linux Security Cookbook > Testing and Monitoring > Securing Device Special Files - Pg. : Safari Books Online

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Linux Security Cookbook

Linux Security Cookbook

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Contents

Ch. 1. System Snapshots with Tripwire

Ch. 2. Firewalls with iptables and ipchains

Ch. 3. Network Access Control

Ch. 4. Authentication Techniques and Infrastructures

Ch. 5. Authorization Controls

Ch. 6. Protecting Outgoing Network Connections

Ch. 7. Protecting Files

Ch. 8. Protecting Email

Ch. 9. Testing and Monitoring

Recipe 9.1. Testing Login Passwords (John the Ripper)

Recipe 9.2. Testing Login Passwords (CrackLib)

Recipe 9.3. Finding Accounts with No Password

Recipe 9.4. Finding Superuser Accounts

Recipe 9.5. Checking for Suspicious Account Use

Recipe 9.6. Checking for Suspicious Account Use, Multiple Systems

Recipe 9.7. Testing Your Search Path

Recipe 9.8. Searching Filesystems Effectively

Recipe 9.9. Finding setuid (or setgid) Programs

Recipe 9.10. Securing Device Special Files

Recipe 9.11. Finding Writable Files

Recipe 9.12. Looking for Rootkits

Recipe 9.13. Testing for Open Ports

Recipe 9.14. Examining Local Network Activities

Recipe 9.15. Tracing Processes

Recipe 9.16. Observing Network Traffic

Recipe 9.17. Observing Network Traffic (GUI)

Recipe 9.18. Searching for Strings in Network Traffic

Recipe 9.19. Detecting Insecure Network Protocols

Recipe 9.20. Getting Started with Snort

Recipe 9.21. Packet Sniffing with Snort

Recipe 9.22. Detecting Intrusions with Snort

Recipe 9.23. Decoding Snort Alert Messages

Recipe 9.24. Logging with Snort

Recipe 9.25. Partitioning Snort Logs Into Separate Files

Recipe 9.26. Upgrading and Tuning Snort's Ruleset

Recipe 9.27. Directing System Messages to Log Files (syslog)

Recipe 9.28. Testing a syslog Configuration

Recipe 9.29. Logging Remotely

Recipe 9.30. Rotating Log Files

Recipe 9.31. Sending Messages to the System Logger

Recipe 9.32. Writing Log Entries via Shell Scripts

Recipe 9.33. Writing Log Entries via Perl

Recipe 9.34. Writing Log Entries via C

Recipe 9.35. Combining Log Files

Recipe 9.36. Summarizing Your Logs with logwatch

Recipe 9.37. Defining a logwatch Filter

Recipe 9.38. Monitoring All Executed Commands

Recipe 9.39. Displaying All Executed Commands

Recipe 9.40. Parsing the Process Accounting Log

Recipe 9.41. Recovering from a Hack

Recipe 9.42. Filing an Incident Report

URL

Help

Recipe 9.10. Securing Device Special Files

9.10.1. Problem

You want to check for potentially insecure device special files.

9.10.2. Solution

To list all device special files (block or character):

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