avc_audit - Linux
Overview
avc_audit is a Linux command used to query and manipulate SELinux security policy audit settings. It provides detailed information about the current audit configuration, allowing administrators to fine-tune audit logging and monitoring.
Syntax
avc_audit [options] <command> [arguments]
Options/Flags
- -a, –audit: View current audit settings.
- -p, –policy: Specify the SELinux policy to query.
- -c, –config: Load a new SELinux policy configuration.
- -t, –type: Filter audit messages by message type.
- -e, –event: Filter audit messages by event type.
- -V, –version: Display the version information.
- -h, –help: Print usage help.
Examples
View current audit settings:
avc_audit -a
Filter audit messages by type:
avc_audit -t login
Apply new SELinux policy configuration:
avc_audit -c /path/to/new_policy.conf
Common Issues
- Access denied: Make sure you have sufficient privileges to run avc_audit.
- Invalid policy: Verify that the specified policy file is a valid SELinux policy configuration.
- No matching audits: Ensure that the filters specified match the audit messages you want to retrieve.
Integration
avc_audit can be combined with other SELinux commands to manage security configurations. For example:
audit2allow -m avc_audit
This command generates SELinux policy modifications based on audit messages from avc_audit.
Related Commands
- ausearch: Search audit messages.
- ausearch-parse: Parse audit messages.
- seaudit: Control SELinux audits.