---
Author: Kristof Vandam
Categories:
- administration
Date: 2018-10-03T10:08:15+02:00
Draft: true
Tags:
- linux
- security
- selinux
Title: Selinux 101
Truncated: true
---

A brief overview about selinux, what can it do and how to manage.
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## Context Types

source context (scontext), for example processes
destination context (tcontenxt), for example, files, directories, ports

semanage

-a add
-d delete
-l list

-t context type

### Examples
#### Add a default context to a directory

## Booleans
setsebool
getsebool

## Debugging

### /var/log/audit/audit.log
avc: denied
access vector control

### /var/log/messages
setroubleshoot 
more human readable errors
-> only available when setroubleshoot-server package is installed

### sealert
/var/log/messages suggest running a sealert command for more information
suggests fixes! :)