GitHub Actions Runner IPs Blocked by Shared-Hosting Firewalls During Deploy
A developer deploying to a cPanel server over SCP/SSH on a custom port finds that GitHub Actions' dynamic runner IPs get auto-blocked by the server's firewall, breaking the deployment step even though the build succeeds. This reflects a structural mismatch between GitHub-hosted runners' non-static IPs and traditional shared-hosting security models.
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Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.