Executive Summary

This daily firewall report covers all agentic workflow runs on 2026-04-03 with the Squid proxy firewall enabled. The firewall processed 1,329 total network requests across 54 runs (out of 72 firewall-enabled runs), with a 2.1% block rate (28 blocked requests). Most blocked traffic came from smoke/test workflows probing external AI services (chatgpt.com) and two legitimate dependency workflows that need allowlist updates (proxy.golang.org for Dependabot, nodejs.org for Glossary Maintainer).

The firewall ran on awf v0.25.13 with a 7-rule policy (4 deny rules + 2 allow rules + 1 default deny) across all workflows using allowed_domains: [defaults].

Key Metrics

📈 Firewall Activity Trends

Request Patterns

Firewall activity peaked between 04:45–05:30 UTC (smoke test suite) and 09:00–10:30 UTC (daily scheduled workflows). The blocking spike in the early morning correlates with the smoke test batch that runs Codex engine validation. All blocked requests were hard denials (403) with no retries recorded, indicating agents properly handled network failures.

Top Blocked Domains

chatgpt.com accounts for the majority of blocked traffic (10/28 = 36%), all originating from smoke test workflows validating firewall behavior. The Go ecosystem (proxy.golang.org, pkg.go.dev) is the second-largest block category at 6 hits, all from Dependabot — a legitimate gap in the allowlist.

Top Blocked Domains

Policy Rule Attribution

Policy Configuration

All analyzed runs used an identical 7-rule policy (awf v0.25.13):
📋 Policy: 7 rules, SSL Bump disabled, DLP disabled

Policy Rule Hit Table

Denied Requests Attribution

All 28 blocked requests matched the deny-default rule (no explicit deny rule targeted them — they simply weren't in the allowlist).

Rule Effectiveness Summary

• deny-default is doing all the blocking work (28/28 = 100%), suggesting the explicit deny rules (unsafe ports, raw IPs) aren't being triggered by normal workflows — which is expected and healthy
• allow-both-regex had 0 hits — the single regex rule for *.jsr.io isn't being used; it could be removed if unused
• github.com (bare hostname) being blocked vs .github.com (subdomain wildcard) being allowed is an edge case: the default policy matches *.github.com but not github.com itself; workflows using the bare hostname are hitting this gap

Security Recommendations

🔧 Fix: Add Go Ecosystem to Dependabot Allowlist

Priority: High — proxy.golang.org (5 blocks) and pkg.go.dev (1 block) are causing silent failures in Go dependency resolution. Add to the Dependabot workflow's network allowlist:

network:
  allowed:
    - defaults
    - proxy.golang.org
    - sum.golang.org
    - pkg.go.dev

🔧 Fix: Add nodejs.org for Glossary Maintainer

Priority: Medium — The Glossary Maintainer was blocked from nodejs.org (1 block). If the workflow needs Node.js release metadata, add it to the allowlist or use an alternative source.

🔧 Fix: storage.googleapis.com for GPL Dependency Cleaner

Priority: Medium — The GPL Dependency Cleaner was blocked from storage.googleapis.com (1 block). If this is needed for downloading tools, add it to the workflow's allowlist.

🔍 Investigate: github.com vs .github.com policy gap

Priority: Medium — 4 blocks on bare github.com + 4 on api.github.com in workflows that should have GitHub access. The default policy uses .github.com (subdomain wildcard) but the Changeset Generator and AI Moderator use a restricted custom allowlist. Verify these workflows don't need direct github.com access, or add explicit entries.

✅ Expected: Smoke Test Probes

The chatgpt.com, invalid.example.invalid, and example.com blocks are deliberate firewall escape probes from smoke/security test workflows. These are working as intended — the firewall is correctly containing access.

🗑️ Cleanup: Unused Regex Rule

The allow-both-regex rule (currently only *.jsr.io) had 0 hits today. If jsr.io is not actively used, consider removing this rule to simplify the policy.

References:

• §23941823622 — Dependabot (most blocked: proxy.golang.org ×5)
• §23934285733 — Changeset Generator (github.com + chatgpt.com blocked)
• §23942998940 — Glossary Maintainer (nodejs.org blocked)

AI generated by Daily Firewall Logs Collector and Reporter · history

• expires on Apr 6, 2026, 12:00 PM UTC