Install this root certificate on unmanaged devices to trust TLS services issued by the CQRE internal certificate authority.
Install at least the root certificate; some platforms prefer importing the intermediate or bundled chain.
After downloading, double-click the certificate and add it to the system trust store.
On iOS / iPadOS you can AirDrop or email the file, install it via Settings ➝ General ➝ VPN & Device Management, then enable full trust.
On Android, open the file and choose “Install certificate” → “VPN and apps”.
For Linux, place the file in /usr/local/share/ca-certificates/ and run
sudo update-ca-certificates.