How to Enable FIPS Mode

Prerequisites

• Ubuntu Pro or RHEL family
• FIPS certified kernel packages

For Ubuntu Pro

sudo apt install ubuntu-advantage-tools
sudo pro attach YOUR_TOKEN
sudo pro enable fips
sudo reboot

For CentOS/RHEL 8

sudo dnf install crypto-policies-scripts
sudo fips-mode-setup --enable
sudo reboot

Verify FIPS Mode

cat /proc/sys/crypto/fips_enabled

Should return 1.