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98 lines
4.1 KiB
Plaintext
98 lines
4.1 KiB
Plaintext
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================================================================================
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Lynis - Frequently Asked Questions
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================================================================================
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Author: Michael Boelen (michael.boelen@cisofy.com)
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Description: Security and system auditing tool
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Website: https://cisofy.com/lynis/
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Development: May 2007 - Now
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Suppor: See README file and https://cisofy.com/support/
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Documentation: See web site, README, FAQ and CHANGELOG file
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================================================================================
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[+] General
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-------------------------------
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Q: I don't understand the program (output), what to do?
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A: Keep reading this FAQ, then continue with reading the README file, followed
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by the log file (default: /var/log/lynis.log). After those sources, check
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the documentation on the website.
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Q: I can't find any configuration file for Lynis, where is it?
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A: There isn't one (currently), since all options are available as command
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parameters. Specific options to control the audit/security scan can be set
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or adjusted by changing the 'profile' file you are using (don't use
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default.prf for your own custom options, but make a copy of it).
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Q: Why is there no port/package for my operating system?
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A: Because there is no maintainer for it yet. If you have the time to keep
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the port/package current for your preferred operating system, fill in the
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contact form to notify me and confirm no one else is working on it.
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Q: What to do with the report files?
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A: The output could be used for monitoring (baseline checks). For user of the
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Lynis Enterprise Suite, they will be used to upload data.
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[+] Bugs or issues
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-------------------------------
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Q: Where can I report an issue or bug?
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A: Use the developer e-mail address lynis-dev@cisofy.com
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[+] Usage problems
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-------------------------------
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Q: Lynis hangs while testing the group files (grpck)
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A: Run the grpck command manually. It will most likely need user input, to
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repair incorrect groups.
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Q: Lynis doesn't display all messages on a white background
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A: White text is used for general (and important) messages. Most terminals
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have a dark background, so it gives extra attention to the message. However
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if you have a white background (for example Mac OS X), you can run Lynis
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with --no-colors to strip colors or --reverse-colors to reverse the color
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scheme. Another option is to change your terminal colors within Mac OS.
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Q: Some tests take very long to finish, what to do?
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A: Use a second console (or connection) and check the output of ps/lsof etc,
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to see the status of the active subroutine. If a specific test hangs for a
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very long time, try to kill that specific process (ie grpck) and see if
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Lynis continues. Afterwards, run the command manually to see the cause.
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Check the log file for additional information, when possible.
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Q: When running Lynis, it shows me the usage help even while using correct
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parameters, why?
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A: This can happen with alternative shells. Try using a different shell to
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invoke Lynis (example: bash lynis -c).
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Q: One or more tests are giving incorrect output. How to solve that?
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A: Check the log file. If that also has incorrect data, fill in the contact
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form and describe the issue.
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Q: The program takes long to complete and also uses too much resources. Can it
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be tuned?
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A: The time it takes to complete is depends on the amount of tests to run.
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However the resources it take can be slighty lowered by increasing the
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pause_between_tests profile option. Keep in mind this increases the total
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length of the scan to complete.
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[+] Network related issues
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-------------------------------
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Q: Lynis reports promiscuous interfaces, but they are needed for normal operation,
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how can I hide this warning?
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A: Whitelist the interface in the profile file (if_promisc).
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================================================================================
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Lynis - Copyright 2007-2015, Michael Boelen, CISOfy - https://cisofy.com
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