- Lab
- A Cloud Guru
Writing a Custom SELinux Policy
SELinux has a number of tools to alter policy without real knowledge of writing policy itself, but when we create our own custom daemons and processes, SELinux won't have default settings readily available for us to use. Instead, we'll have to use a combination of tools and troubleshooting to develop a custom policy so that your custom work can work. In this lab, we'll use `sepolicy`, `ausearch`, and `audit2allow` to create a policy, implement it, and then refine the policy through troubleshooting.
Path Info
Table of Contents
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Challenge
Generate Policy
Create a base policy for the
apacheloggerdaemon. -
Challenge
Troubleshoot Policy
Apply the generated policy, then review SELinux logs to see if any parts of the daemon are blocked by the new policy. Rewrite the policy to allow the appropriate access.
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Challenge
Reapply Policy
Reapply the adjusted policy and ensure there are no errors.
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