avc_cleanup - Linux
Overview
The avc_cleanup
command is used to reclaim space occupied by AVC (Access Vector Cache) databases. It removes unused entries from the database, reducing its size and improving performance.
Syntax
avc_cleanup [-h] [-f]
Options/Flags
- -h: Display help and usage information.
- -f: Force cleanup, even if the database contains active entries. Use this option with caution.
Examples
To perform a standard cleanup, run:
avc_cleanup
To force cleanup, even if active entries are present, use:
avc_cleanup -f
Common Issues
Error: avc_cleanup: warning: database has active entries.
This error occurs when trying to cleanup the database while active entries are present. Use the -f
option to force cleanup.
Integration
avc_cleanup
can be integrated into scripts or automated tasks to periodically reclaim space occupied by the AVC database. For example:
#!/bin/sh
# Run avc_cleanup once a day at midnight
0 0 * * * /usr/sbin/avc_cleanup
Related Commands
- avctester: Manage and test AVC policies.
- semodule: Manage SELinux policies.
For more information on AVC and SELinux, refer to the official SELinux User’s Guide.