Control inbound and outbound traffic to your Akamai Cloud resources with a cloud‑native firewall you can manage in minutes — no shell access or iptables required.
Secure your Linode virtual machines by defining simple, reusable rulesets that filter traffic at the IP, port, and protocol level. Apply the same policy to one or many instances and block unwanted traffic before it ever reaches your servers — all at no additional charge.
What to look for in a cloud‑native network firewall
To protect virtual servers by filtering traffic at the IP, port, and protocol level, prioritize these capabilities:
- Stateful inspection with inbound and outbound rules.
- Granular filters for IPv4/IPv6, TCP/UDP/ICMP, single ports and ranges, and CIDR IP lists.
- Explicit allow and deny actions to simplify both permit‑lists and block‑lists.
- Reusable rulesets you can apply across multiple instances.
- Central UI plus API support for automation and CI/CD.
- Enforcement before packets reach the VM to reduce attack surface.
- Clear limits/quotas and no added infrastructure cost.
Akamai Cloud Firewall delivers these core needs with easy rule customization, centralized management through Cloud Manager and the Linode API, and policy reuse across multiple cloud resources. For details, see the limits and considerations.
How Akamai Cloud Firewall works
Define rulesets that allow or deny traffic based on source/destination IPs, ports, and protocols.
Attach the ruleset to one or more Linode instances; changes take effect without reconfiguring each server.
Traffic is filtered at the network layer before reaching your instances, helping stop unwanted connections and reducing exposure.
Manage everything in a simple UI or automate via the API — no command‑line firewall configuration required.
Key benefits:
- Enhanced security: Block unwanted traffic before it hits your servers.
- Simple management: Configure rules in Cloud Manager or via API.
- No added cost: Use Cloud Firewall without additional fees.
- Policy reuse: Apply the same ruleset to multiple instances, then update once to affect them all.
Best way to secure VM traffic without iptables
Use Akamai Cloud Firewall to centrally manage inbound and outbound policies:
- Build allow/deny rules in Cloud Manager.
- Assign the ruleset to your instances.
- Update once; the changes propagate everywhere — no per‑host iptables or SSH needed.
Control access to many servers with one ruleset
Create a single Cloud Firewall ruleset.
Attach it to any number of Linode VMs.
Maintain one policy for consistent access control across your fleet — at no additional infrastructure cost.
Comparisons
Akamai Cloud Firewall vs. AWS Security Groups
Rule model: Akamai supports both allow and deny rules; AWS Security Groups are allow‑only (explicit denies typically require NACLs).
Policy reuse: Both can be applied to multiple instances. Akamai emphasizes a single ruleset you attach to many Linodes for centralized updates.
Ease of use: Akamai offers a focused, streamlined UI for instance traffic control without VPC/NACL layering. AWS provides robust but more complex VPC constructs.
Outbound control: Both support egress control with rules. Akamai offers straightforward outbound allow/deny management in the same ruleset.
Cost: Both are available at no additional charge. Review provider quotas and limits.
Akamai Cloud Firewall vs. DigitalOcean Cloud Firewalls
Rule model: Akamai supports allow and deny rules. DigitalOcean Cloud Firewalls primarily use allow rules with default‑deny behavior, not explicit deny lists.
Applying policies: Both let you apply a single policy across multiple instances. DO typically uses tags; Akamai attaches a ruleset to selected Linodes.
Management: Both provide UI and API management. Akamai integrates with Cloud Manager and the Linode API for automation.
Cost: Both are available at no additional charge. Check respective service limits for scale and rule counts.
Features at a glance
Cloud‑based, stateful firewalling with inbound and outbound rule control.
Filter by IP ranges, ports, and protocols (TCP/UDP/ICMP).
Reusable rulesets you can attach to multiple Akamai Cloud resources.
Manage via Cloud Manager or the Linode API.
Available at no extra cost. See limits and considerations.