Firewall Management Service

We design firewall policies based on the principle of least privilege — deny all traffic by default and explicitly allow only what is required. Every rule is documented with its purpose, the service it enables, and the requestor. Rules without justification do not exist in our managed firewalls.

Rule design considers both external and internal traffic. Public-facing services get carefully scoped ingress rules. Internal services communicate over private networks with inter-service rules that prevent lateral movement if a single host is compromised. Database ports are never exposed to the internet. Management ports are restricted to VPN or bastion host access only.

We deploy intrusion prevention systems that inspect traffic patterns and block known attack signatures in real time. SQL injection attempts, XSS payloads, directory traversal, and exploit kit traffic are dropped before reaching your application. IPS signatures are updated daily from threat intelligence feeds.

Rate limiting and connection throttling protect against brute-force attacks, credential stuffing, and application-layer DDoS. We configure per-IP and per-subnet rate limits that are strict enough to block abuse but generous enough to avoid false positives on legitimate traffic. Adaptive rate limiting increases restrictions automatically during attack conditions.

Our firewall infrastructure includes DDoS mitigation capabilities for volumetric, protocol, and application-layer attacks. SYN flood protection, UDP amplification filtering, and HTTP flood detection are configured by default. For large-scale attacks, we integrate with upstream DDoS scrubbing services that absorb attack traffic before it reaches your server.

DDoS response procedures are documented and tested. When an attack is detected, mitigation activates automatically. Our engineering team monitors the attack in real time, adjusting mitigation rules to block evolving attack vectors while preserving legitimate traffic. Post-attack analysis identifies the attack source, vectors used, and any infrastructure adjustments needed to improve resilience.

Firewall rules accumulate over time, and without regular auditing, rulesets become bloated with unnecessary, redundant, or overly permissive entries. We audit firewall rules quarterly — identifying rules that are no longer needed, consolidating overlapping rules, and tightening overly broad permissions.

Audit reports document the current ruleset, changes made since the last audit, and compliance status against your security policy. For regulated environments, we map firewall controls to specific compliance requirements — PCI DSS network segmentation, HIPAA access controls, or SOC 2 logical access policies. Audit evidence is generated automatically, reducing the burden on your security team during certification audits.