Daily Firewall Report - February 11, 2026 #14880
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Executive Summary
This report analyzes firewall activity across 18 unique workflows and 46 workflow runs over the past 7 days (February 10-11, 2026). The firewall system successfully monitored and controlled network access across all agentic workflows, with a notable emphasis on blocking unauthorized access to development infrastructure.
The analysis reveals a 71.3% block rate, primarily driven by attempts to access
proxy.golang.org(a legitimate Go package proxy). The majority of blocked requests (1,090 out of 1,704) were to unknown destinations ("-"), indicating DNS lookup failures or malformed requests that the firewall correctly prevented. Only 2 unique domains were actually blocked, suggesting effective allowlist configuration with minimal false positives.🔢 Key Metrics
Network Activity (7 days):
📊 Firewall Activity Trends
Request Patterns
The firewall request trends show concentrated activity over the past 2 days, with a significant spike in blocked requests. The high block rate is primarily due to unknown/malformed destinations ("-") being correctly rejected by the firewall. Legitimate traffic to AI engines, GitHub APIs, and package registries flows without issues.
Top Blocked Domains
The single most frequently blocked domain is
proxy.golang.orgwith 300 blocks. This is a legitimate Go package proxy service that workflows may need access to for Go dependency resolution. The chart shows this domain dominates the blocked traffic among identified domains.🏆 Top Blocked Domains
proxy.golang.org:443Key Observation:
proxy.golang.orgis the Go package proxy used for dependency resolution. This domain appears to be legitimately needed by workflows that build or verify Go packages, yet it's being blocked 100% of the time (300 requests across 5 workflows).View Detailed Request Patterns by Workflow
CLI Version Checker (346 blocked, 71 allowed)
The CLI Version Checker workflow shows the highest blocked request count at 346 requests, with 296 blocks to
proxy.golang.org. This workflow checks for CLI tool updates and requires Go package proxy access.proxy.golang.org:443Analysis: The workflow successfully allows access to API endpoints (anthropic.com, github.com, npmjs.org) but blocks Go proxy access, suggesting a missing allowlist entry.
CI Failure Doctor (28 blocked, 15 allowed)
proxy.golang.org:443Analysis: The workflow attempted 1 request to
proxy.golang.org, which was blocked. The workflow appears to be diagnosing CI failures that may involve Go builds.Terminal Stylist (45 blocked, 13 allowed)
proxy.golang.org:443Analysis: One blocked request to Go proxy, suggesting the workflow may be checking code or dependencies that require Go tooling.
Test Workflow (37 blocked, 14 allowed)
proxy.golang.org:443Analysis: Test workflow blocked from accessing Go proxy for dependency resolution.
Changeset Generator (10 blocked, 10 allowed)
proxy.golang.org:443Analysis: Equal allowed/blocked traffic. Go proxy access blocked, while OpenAI API access is allowed.
Other Workflows with Blocked Traffic
The following workflows had blocked requests but no identifiable blocked domains (all blocks were to unknown destinations "-"):
Pattern Analysis: These workflows show consistent block rates between 37-75%, with all blocked traffic going to unknown/malformed destinations. This suggests DNS resolution failures, invalid proxy requests, or attempts to access services not explicitly allowed by the firewall.
View Complete Blocked Domains List
Complete List of Blocked Domains
proxy.golang.org:443release-assets.githubusercontent.com:443Note: The domain
release-assets.githubusercontent.com:443appears in the global blocked domains list but doesn't show up in per-workflow breakdowns, suggesting it was blocked in a workflow that otherwise had no blocked traffic to report.🔍 Security Recommendations
1. Allowlist Go Package Proxy for Development Workflows
Issue:
proxy.golang.orgis blocked 300 times across 5 workflows, preventing Go dependency resolution.Recommendation: Add
proxy.golang.org:443to the network allowlist for workflows that need to build or verify Go packages:Frontmatter Addition:
2. Investigate Unknown Destination Blocks
Issue: 1,090 requests (64% of blocked traffic) went to unknown destinations ("-").
Recommendation: Review firewall logs to understand what these requests represent. Potential causes:
Action: Enable detailed logging in Squid proxy to capture more context about these "-" entries.
3. Review GitHub Asset Access
Issue: 3 requests to
release-assets.githubusercontent.comwere blocked.Recommendation: If workflows need to download release assets (binaries, archives), consider adding:
However, verify this is intentional and not an artifact of a workflow attempting to download unvetted binaries.
4. Monitor Firewall Performance
Observation: The 71.3% block rate is high. While this indicates the firewall is working, it also suggests workflows are attempting many connections that fail.
Recommendation:
5. Security Posture Assessment
Strengths:
Areas for Improvement:
📌 Summary Statistics
Report Generated: 2026-02-11
Analysis Period: 2026-02-10 to 2026-02-11 (7-day window)
Data Source: GitHub Actions workflow firewall logs via
gh aw audittoolReferences:
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