Initial commit: OpenWrt firewall management scripts

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

test_connection.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# --- 這裡要改成你真正有開的 Port ---
+TARGET_IP="125.229.110.50"
+# PORTS=("51433") 
+PORTS=("51433" "31433")
+
+echo "--- [第一步：身份確認] ---"
+MY_INFO=$(curl -s https://ip.lotimmy.com/json)
+MY_IP=$(echo $MY_INFO | jq -r '.ip')
+MY_REGION=$(echo $MY_INFO | jq -r '.region_name')
+MY_ASN=$(echo $MY_INFO | jq -r '.asn_org')
+
+echo "目前位置：$MY_REGION ($MY_ASN)"
+echo "對外 IP ：$MY_IP"
+
+# 判斷是否為台灣 IP
+SHOULD_PASS=false
+if [[ "$MY_REGION" == *"Taipei"* ]] || [[ "$MY_ASN" == *"Data Communication"* ]]; then
+    SHOULD_PASS=true
+fi
+
+echo -e "\n--- [第二步：連線測試] ---"
+for PORT in "${PORTS[@]}"
+do
+    # 測試連線
+    nc -zv -w 5 $TARGET_IP $PORT > /dev/null 2>&1
+    if [ $? -eq 0 ]; then
+        echo "[成功] Port $PORT 連線正常。"
+    else
+        echo -n "[攔截] Port $PORT 無法連線。"
+        [ "$SHOULD_PASS" = true ] && echo " (錯誤：你是台灣 IP 卻被擋掉！)" || echo ""
+    fi
+done