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Prevent DDoS Attacks While Allowing Anonymous Access

My Team and I manage a Jira instance with several projects that can be viewed by anonymous users, and we found ourselves on the receiving end of what appears to be a DDoS attack, where anonymous users made several thousand HTTP requests to a project in 5 minutes.

These projects need to be publicly accessible, and it is possible this was just caused by many people clicking the same link at once, but we still need to find a way to prevent this as it also caused the entire Jira instance to go down, along with a linked Confluence instance.

Has anyone experienced a similar scenario, and how did you react to it while allowing anonymous access?

1 comment

Your best bet is to probably use a WAF (Web Application Firewall) Something like cloudflare, or incapsula to front end your instance.

They will give you some options for rate limiting and other filtering to prevent some DoS attacks.

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