Description

Web search (Brave, Gemini, Perplexity, etc.) fails inside the NemoClaw sandbox because the sandbox has no DNS access. Node.js resolves hostnames locally before sending through the OpenShell HTTPS proxy, causing getaddrinfo EAI_AGAIN errors.

Steps to Reproduce

1. Run nemoclaw onboard (non-interactive, NVIDIA API key)
2. Configure Gemini search: write {"tools":{"web":{"search":{"provider":"gemini","gemini":{"apiKey":"<key>"}}}}} to workspace settings
3. Add generativelanguage.googleapis.com to network policy
4. Run: openclaw agent --agent main --local -m "Search the web for Docker" --session-id test

Expected Behavior

The web search tool should route the request through the OpenShell proxy at 10.200.0.1:3128, which handles DNS resolution and TLS termination.

Actual Behavior

[tools] web_search failed: getaddrinfo EAI_AGAIN generativelanguage.googleapis.com

Node.js tries to resolve the hostname locally (no DNS in sandbox), fails before the request ever reaches the proxy.

Tested with:

• curl from sandbox: proxy returns 403 Forbidden → after adding policy → proxy returns 200 (policy works)
• node/openclaw from sandbox: always getaddrinfo EAI_AGAIN regardless of policy (DNS fails before proxy is used)

Environment

• NemoClaw: latest (installed March 22, 2026)
• OpenShell: 0.0.13
• OpenClaw: 2026.3.11
• Host: Alpine Linux 6.18.16-0-lts, Docker 29.1.3
• Running via Docker with host networking + socket mount

Analysis

The OpenShell proxy (10.200.0.1:3128) works correctly for CONNECT tunneling — curl successfully uses it when the policy allows the host. But Node.js's HTTP client (undici/fetch) resolves DNS before establishing the CONNECT tunnel, and the sandbox's network namespace has no DNS resolver configured.

Suggested Fix

Either:

1. Configure DNS in the sandbox (e.g., point /etc/resolv.conf at the proxy or gateway)
2. Make OpenClaw's web search tool use the proxy for DNS resolution (e.g., via undici.ProxyAgent with requestTls.servername)
3. Add a DNS proxy alongside the HTTP proxy in the sandbox