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Atlassian documents edge and network defenses as part of the security it operates for Atlassian Cloud—not as a separate customer-deployable product called “Atlassian Edge Security.” Those safeguards help protect Atlassian’s own services. They do not secure a customer’s separate website or self-hosted application, and they do not remove an organization’s responsibilities for identity, patching, access control, or backups.
What does Atlassian Edge Security do?
Atlassian describes controls at the edge of its corporate and Cloud environments, including DDoS mitigation, corporate edge firewalls, network and host defenses, and logical separation of customer data. These are measures within Atlassian’s environment, rather than a separately documented appliance customers can install. Atlassian’s security measures, effective October 7, 2025, describe the protections it operates for its Cloud products and related infrastructure.
Atlassian also documents encryption protections for Cloud data. Its security practices page says customer data is encrypted in transit over public networks using TLS 1.2 or higher with Perfect Forward Secrecy. It says drives holding data for a named set of Cloud products use AES-256 encryption at rest. The at-rest statement applies to the products identified on that page, not automatically to every Atlassian product or deployment. See Atlassian’s stated product scope and security practices.
Does Atlassian’s edge security replace a WAF?
No. Atlassian’s Cloud-side edge protections apply to Atlassian-operated services. A web application firewall (WAF) that you configure for a separately operated public-facing application serves a different perimeter and purpose. Neither should be mistaken for protection of the other system.
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For Jira and Confluence Data Center deployments, Atlassian’s security checklist recommends customers configure their own deployment and surrounding network controls. It describes WAF protection against common threats including injection attacks, predictable resource location attacks, HTTP DDoS, HTTP request smuggling, file path traversal, server-side request forgery (SSRF), and clickjacking. That is a description of the WAF’s role, not a guarantee that it blocks every attack. Read Atlassian’s Data Center security checklist.
Do I still need a firewall or VPN?
That depends on what you operate and how users connect. For Data Center, Atlassian’s checklist treats network placement and perimeter controls as customer responsibilities: it recommends private networks and configuring controls such as a WAF and VPN. It also identifies MFA and SSO, encryption, access controls, timely security fixes, and regular backups as distinct parts of deployment security.
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- WAF: filters web requests to a protected application, within the limits of its configuration and capabilities.
- Firewall and network placement: control which traffic can reach systems and where those systems are exposed.
- VPN: can provide a controlled route for remote access; it does not replace application or identity security.
- MFA, SSO, and access controls: govern authentication and what users can reach after connecting.
- Patching, encryption, and backups: address software vulnerabilities, data protection, and recovery—risks a WAF does not cover by itself.
Atlassian frames Data Center security as ongoing shared responsibility: “This model requires customers to implement practices that continue beyond deployment and extend into operational phases.” The statement appears in Atlassian’s Data Center security checklist and shared responsibilities.
What do I need to configure for Jira or Confluence Data Center?
Data Center is customer-operated, so plan security around the application, its hosts, and the network around them. Atlassian’s checklist points to these areas:
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- Limit exposure. Place the deployment on a private network and control which systems and users can reach it.
- Maintain the software. Apply security fixes promptly and include ongoing operations in the security plan.
- Configure perimeter and remote-access controls. Assess WAF and VPN configuration for your deployment and its access patterns.
- Protect identity and permissions. Configure MFA and SSO where appropriate, and manage user access.
- Protect data and plan recovery. Address encryption and maintain regular backups.
These are complementary measures; the checklist does not imply that any one of them, including a WAF, makes the rest unnecessary. The appropriate configuration depends on the deployment and its surrounding infrastructure. Atlassian’s checklist provides its Data Center guidance.
Which Atlassian domains should my firewall allow?
If your organization uses restrictive outbound firewall or proxy rules for Atlassian Cloud, you may need to allow the domains and IP ranges listed in Atlassian’s support guide. That guide identifies *.awswaf.com as AWS WAF intelligent threat mitigation used to verify browser authenticity and says it is required for Cloud product login and use.
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Do not treat any copied list as permanent: Atlassian says the domains and IP ranges are subject to change. Check the live IP addresses and domains for Atlassian Cloud apps guide before changing firewall or proxy policy.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How does Atlassian Guard’s external-site policy fit in?
Atlassian Guard’s external-site policy limits access to external Atlassian Cloud sites. Atlassian says broader coverage requires network infrastructure—such as a proxy, firewall, or SASE platform—to add the policy header to outgoing HTTPS requests sent to Atlassian. The policy and network controls therefore work together; the policy does not replace the network configuration needed to apply it more broadly. See Atlassian’s guidance on managing access to external sites.
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