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authormboelen <michael@cisofy.com>2014-08-26 19:33:55 +0400
committermboelen <michael@cisofy.com>2014-08-26 19:33:55 +0400
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+
+================================================================================
+
+ Lynis - Frequently Asked Questions
+
+================================================================================
+
+ Author: Michael Boelen (michael@rootkit.nl)
+ Description: Security and system auditing tool
+ Website: http://cisofy.com/lynis/
+ http://www.rootkit.nl/projects/lynis.html
+ Development start: May 2007
+ Support policy: See section 'Support' (README file)
+ Documentation: See web site, README, FAQ and CHANGELOG file
+
+================================================================================
+
+[+] General
+-------------------------------
+
+ Q: I don't understand the program (output), what to do?
+ A: Keep reading this FAQ, then continue with reading the README file, followed
+ by the log file (default: /var/log/lynis.log). After those sources, check
+ the documentation on the website.
+
+ Q: I can't find any configuration file for Lynis, where is it?
+ A: There isn't one (currently), since all options are available as command
+ parameters. Specific options to control the audit/security scan can be set
+ or adjusted by changing the 'profile' file you are using (don't use
+ default.prf for your own custom options, but make a copy of it).
+
+ Q: Why is there no port/package for my operating system?
+ A: Because there is no maintainer for it yet. If you have the time to keep
+ the port/package current for your preferred operating system, fill in the
+ contact form to notify me and confirm no one else is working on it.
+
+ Q: What to do with the report files?
+ A: The output could be used for monitoring (baseline checks). For user of the
+ Lynis Enterprise Suite, they will be used to upload data.
+
+
+
+[+] Usage problems
+-------------------------------
+ Q: Lynis hangs while testing the group files (grpck)
+ A: Run the grpck command manually. It will most likely need user input, to
+ repair incorrect groups.
+
+ Q: Lynis doesn't display all messages on a white background
+ A: White text is used for general (and important) messages. Most terminals
+ have a dark background, so it gives extra attention to the message. However
+ if you have a white background (for example Mac OS X), you can run Lynis
+ with --no-colors to strip colors or --reverse-colors to reverse the color
+ scheme. Another option is to change your terminal colors within Mac OS.
+
+ Q: Some tests take very long to finish, what to do?
+ A: Use a second console (or connection) and check the output of ps/lsof etc,
+ to see the status of the active subroutine. If a specific test hangs for a
+ very long time, try to kill that specific process (ie grpck) and see if
+ Lynis continues. Afterwards, run the command manually to see the cause.
+ Check the log file for additional information, when possible.
+
+ Q: When running Lynis, it shows me the usage help even while using correct
+ parameters, why?
+ A: This can happen with alternative shells. Try using a different shell to
+ invoke Lynis (example: bash lynis -c).
+
+ Q: One or more tests are giving incorrect output. How to solve that?
+ A: Check the log file. If that also has incorrect data, fill in the contact
+ form and describe the issue.
+
+ Q: The program takes long to complete and also uses too much resources. Can it
+ be tuned?
+ A: The time it takes to complete is depends on the amount of tests to run.
+ However the resources it take can be slighty lowered by increasing the
+ pause_between_tests profile option. Keep in mind this increases the total
+ length of the scan to complete.
+
+
+
+[+] Network related issues
+-------------------------------
+
+ Q: Lynis reports promiscuous interfaces, but they are needed for normal operation,
+ how can I hide this warning?
+ A: Whitelist the interface in the profile file (if_promisc).
+
+
+
+================================================================================
+ Lynis - Copyright 2007-2014, Michael Boelen - The Netherlands
+ http://cisofy.com