SELinux

Security-Enhanced Linux (SELinux) is a Linux feature that provides a mechanism for supporting access control security policies, including U.S. Department of Defense style mandatory access controls, through the use of Linux Security Modules (LSM) in the Linux kernel.en.wikipedia.org/wiki/Security-Enhanced_Linux

Toolpack and SELinux

The Toolpack software doesn't support SELinux. Enabling it while Toolpack is running will lead to unexpected behavior.

References

How to get SELinux status

How to disable SELinux