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Is it possible to apply Firewall rules to a Load Balancer?

Posted September 2, 2020 236 views
Load BalancingDigitalOcean Cloud FirewallsDigitalOcean Managed Load Balancers

I have a “DO Managed Load Balancer” in front of my droplets, and want to only allow certain IPs to access my website. I saw DO’s “Managed Firewall” feature that can be created and applied to a Droplet. But since the service is accessed via the LB first, set a Firewall rule for the Droplet doesn’t really help.

So I am wondering is there a way that I can create a “DO Managed Firewall” and apply it to my Load Balancer? or maybe there is but I might have missed it?

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marks567217 September 3, 2020

you could set some allow/disallow rules on IP ranges through Google’s Cloud Armor Security Policies (Use case / How to) by setting the target on the backend service of an HTTP load balancer

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  • 0xbf September 3, 2020

    thank you for the answer. I will try Google’s Cloud Armor. But I guess it also means DigitalOcean doesn’t have this function :(

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