Automation tutorials
2 articles — step-by-step guides, fixes and working code for Automation.
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Automation Fix n8n "ECONNREFUSED 127.0.0.1" in Docker: localhost, host.docker.internal & SSRF
Fix "connect ECONNREFUSED 127.0.0.1" in n8n's HTTP Request node when n8n runs in Docker: localhost vs host.docker.internal, the Linux host-gateway fix, 0.0.0.0 binding, and n8n's SSRF block.
n8nDockerTroubleshootingRead article -
Automation n8n 3.0 Breaking Changes: How to Upgrade Without Breaking Your Workflows
Every n8n 3.0 breaking change that can stop your workflows — removed nodes, new env var defaults, storage path changes — plus a safe step-by-step Docker upgrade and rollback plan.
n8nAutomationDockerRead article