Initial commit: combine nas_tool, nas_webdav, sync-utils

2026-02-18 22:59:43 +08:00
commit 526c6a5521
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+# Troubleshooting Proxy Connection Timeout
+
+## Issue
+Connection test timeout when connecting to proxy from iPhone/Shadowrocket.
+
+## Status Check
+✅ Clash is running
+✅ Listening on ports 7890, 7891, 7892
+✅ Local connection works (tested from server2)
+✅ Authentication configured
+✅ UFW firewall allows ports
+
+## Possible Causes
+
+### 1. Oracle Cloud Security List / Firewall
+Oracle Cloud has a **Security List** that acts as a firewall. Even if UFW allows the ports, Oracle's firewall might be blocking them.
+
+**Solution:** Check Oracle Cloud Console:
+1. Go to Oracle Cloud Console
+2. Networking → Virtual Cloud Networks
+3. Find your VCN
+4. Security Lists → Ingress Rules
+5. Add rules for ports 7890, 7891, 7892, 9090
+   - Source: 0.0.0.0/0 (or your IP for security)
+   - Protocol: TCP
+   - Port: 7890, 7891, 7892, 9090
+
+### 2. Network ACL
+Oracle Cloud also has Network ACLs that might block traffic.
+
+### 3. IPv6 vs IPv4
+Clash shows as `tcp6` but `*:7890` means it listens on both IPv4 and IPv6. This should be fine.
+
+### 4. Connection from iPhone
+Test from a different network to see if it's network-specific.
+
+## Quick Tests
+
+### Test 1: Check if port is reachable
+```bash
+# From your Mac (not iPhone)
+nc -zv 158.101.140.85 7890
+# or
+telnet 158.101.140.85 7890
+```
+
+### Test 2: Test from server2 itself
+```bash
+ssh server2 'curl -v --proxy http://proxy_user:Cs7yBx1Rh9oK@127.0.0.1:7890 http://httpbin.org/ip'
+```
+
+### Test 3: Check Oracle Cloud Security List
+- Log into Oracle Cloud Console
+- Check Security List rules for your instance
+
+## Most Likely Issue: Oracle Cloud Security List
+
+Oracle Cloud blocks all incoming traffic by default unless explicitly allowed in the Security List. UFW on the server won't help if Oracle's firewall blocks it first.
+
+## Solution Steps
+
+1. **Check Oracle Cloud Console:**
+   - Go to your instance
+   - Click on the VCN/subnet
+   - Security Lists → Ingress Rules
+   - Add rules for ports 7890, 7891, 7892
+
+2. **Or use Oracle Cloud CLI:**
+```bash
+# Add security list rule (example - adjust for your setup)
+oci network security-list update --security-list-id <your-security-list-id> ...
+```
+
+3. **Test again from iPhone after adding rules**
+
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