## External resources

### Other official hardening guides

| <b><u>Type of hardening guide</u></b> | <b><u>Comments</u></b> |
| :---         | :---         |
| <b>[STIGs Master List](https://iase.disa.mil/stigs/Pages/a-z.aspx)</b> ||
| <b>[Security Harden CentOS 7](https://highon.coffee/blog/security-harden-centos-7/)</b> | <sup>compliant with OpenSCAP</sup> |
| <b>[CentOS 7 Server Hardening Guide](https://www.lisenet.com/2017/centos-7-server-hardening-guide/)</b> | <sup>compliant with OpenSCAP</sup> |
| <b>[Arch Linux](https://wiki.archlinux.org/index.php/Security)</b> ||
| <b>[CentOS Linux](https://wiki.centos.org/HowTos/OS_Protection)</b> ||
| <b>[Debian GNU/Linux](https://www.debian.org/doc/manuals/securing-debian-howto/index.en.html)</b> | <sup>old guide - to update</sup> |
| <b>[Fedora Linux](https://docs.fedoraproject.org/en-US/Fedora/19/html/Security_Guide/index.html)</b> | <sup>old guide - to update</sup>  |
| <b>[Red Hat Enterprise](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/)</b> ||
| <b>[Slackware Linux](https://docs.slackware.com/howtos:security:start)</b> | <sup>some data may not be available</sup>  |
| <b>[Ubuntu Linux](https://help.ubuntu.com/lts/serverguide/security.html.en)</b> | <sup>some data may not be available</sup> |