How to configure Ubuntu SELinux?

@sallie 

SELinux (Security-Enhanced Linux) is a security module for Linux that provides a mechanism for enforcing security policies on a system. If you are running Ubuntu and want to use SELinux, you will need to install the SELinux package and configure it properly. Here are the steps to configure SELinux on Ubuntu:

1. Install the SELinux package:

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sudo apt-get install selinux

1. Reboot your system to ensure that the SELinux kernel modules are loaded.
2. Edit the /etc/selinux/config file and set the SELINUX parameter to "enforcing" to enable SELinux:

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SELINUX=enforcing

1. Set the SELinux policy to "targeted" by editing the /etc/selinux/config file:

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SELINUXTYPE=targeted

1. Install the policycoreutils package to manage SELinux policies:

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sudo apt-get install policycoreutils

1. Apply the default SELinux policy by running the following command:

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sudo /usr/sbin/semanage boolean -l | grep 'httpd_can_network_connect'

sudo /usr/sbin/setsebool -P httpd_can_network_connect on

1. Reboot your system to apply the changes:

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sudo reboot

After following these steps, your Ubuntu system should be configured to use SELinux. Keep in mind that SELinux can be complex and may require additional configuration depending on your specific use case. Be sure to consult the SELinux documentation and Ubuntu community for additional guidance.