CIRA (also known as Canadian Internet Registration Authority) DNS Firewall is one of the endpoint protection services that McGill uses to enhance cybersecurity and optimize network protection. When you use CIRA DNS Firewall, websites that contain malicious software or engage in phishing are blocked at the DNS layer. This means that no connection is established with the website or web application.
CIRA DNS Firewall offers several advantages that align with our security and operational requirements:
By protecting against identity theft, security breaches, and data loss, endpoint protection software such as CIRA DNS Firewall helps minimize business risks, including network downtime and reduced productivity.
Keeping your endpoint protection program up to date significantly lowers the risk of malware infections while ensuring that any existing threats are detected and eliminated efficiently.
In 2025, McGill will replace Cisco Umbrella (for Windows laptops only) with CIRA DNS Firewall.
For LAN Administrators: Please ensure that all systems within your networks are protected from viruses by installing Microsoft Defender for Endpoint and CIRA DNS Firewall on McGill-funded computers.
In accordance with Section 8.5 of the Policy on the Responsible Use of IT Resources and the and the Workstation standards, all computers connected to McGill's network must run an IT Services-approved antivirus program, and IT Services may deny network access to any computer that is not running an antivirus program, or which is currently spreading a virus. Here are some of the advantages of using a McGill-provided antivirus solution on your computer:
CIRA DNS Firewall is available for all users of McGill-funded Windows laptop computers.
If CIRA DNS Firewall has not been automatically pushed to your laptop computer, please contact your local LAN Administrator or the IT Service Desk.
There is no cost for this service.
CIRA DNS Firewall runs in the background and protects your computer even when outside of the McGill network.
What will I see when a site is blocked?
When a site is blocked by CIRA DNS Firewall, you might see a block page that informs you that access to the site has been restricted. Here are some examples:
If you believe a site is blocked incorrectly by CIRA, please contact your local LAN Administrator or the IT Service Desk.
How does CIRA protect my computers and devices?
When you use CIRA DNS Firewall, websites that contain malicious software or engage in phishing are blocked at the DNS layer. This means that no connection is established with the website or web application.
Does this replace my other security software like antivirus or traditional firewall?
CIRA DNS Firewall is an addition to the end-point protection software. The end-point protection software is still the primary protection for security detection.
How do I know if CIRA DNS Firewall is installed on my machine?
You can find out by looking for either:
What should I do if I get the warning message that I have reached a potentially harmful site?
Close all browser windows after receiving this warning. If you believe a site is blocked incorrectly by CIRA, please contact your local LAN Administrator or the IT Service Desk.
What happens if I access a potentially harmful website or click on a malicious link while I am within the McGill network?
While within the McGill network, McGill’s built-in infrastructure blocks and protects access to malicious sites. CIRA DNS Firewall protects your laptop when you are outside of the McGill network.
Will CIRA DNS Firewall be installed on McGill desktop computers?
CIRA DNS Firewall will only be installed on laptops.
Please contact the IT Service Desk for more information.
For LAN Administrators:
Contact the IT Service Desk