What problem does it solve? When running LLM training workflows on remote NPU servers, you often cannot tell whether failures come from blocked external network access (Hugging Face, GitHub, baidu) or from missing proxy configuration. This Skill probes external connectivity and sets up an SSH reverse tunnel so remote machines can route traffic through your local proxy. ## Core Features & Use Cases - External Network Probing: Measures latency and bandwidth to baidu.com, huggingface.co, and github.com from local and remote machines. - SSH Reverse Proxy Setup: Forwards the local 127.0.0.1:7890 proxy to remote servers that have no direct internet access. - Proxy Validation: Verifies the tunneled proxy actually works before you launch training jobs. - Use Case: Before starting a verl training run on server nvidia-01, run the probe to confirm Hugging Face is reachable; if not, establish the SSH reverse tunnel and re-validate. ## Quick Start Run the network probe against server nvidia-01 using my config.yaml to check baidu, Hugging Face, and GitHub reachability and set up the SSH reverse proxy if needed.
