Auto-sync: 20260105-122831

data/scripts/internet-watchdog.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+# Internet Watchdog - Reboots if internet is unreachable for 5 minutes
+LOG_FILE="/var/log/internet-watchdog.log"
+FAIL_COUNT=0
+MAX_FAILS=5
+CHECK_INTERVAL=60
+
+log() {
+    echo "$(date "+%Y-%m-%d %H:%M:%S") - $1" >> "$LOG_FILE"
+}
+
+check_internet() {
+    for endpoint in 1.1.1.1 8.8.8.8 208.67.222.222; do
+        if ping -c 1 -W 5 "$endpoint" > /dev/null 2>&1; then
+            return 0
+        fi
+    done
+    return 1
+}
+
+log "Watchdog started"
+
+while true; do
+    if check_internet; then
+        if [ $FAIL_COUNT -gt 0 ]; then
+            log "Internet restored after $FAIL_COUNT failures"
+        fi
+        FAIL_COUNT=0
+    else
+        FAIL_COUNT=$((FAIL_COUNT + 1))
+        log "Internet check failed ($FAIL_COUNT/$MAX_FAILS)"
+
+        if [ $FAIL_COUNT -ge $MAX_FAILS ]; then
+            log "CRITICAL: $MAX_FAILS consecutive failures - REBOOTING"
+            sync
+            sleep 2
+            reboot
+        fi
+    fi
+    sleep $CHECK_INTERVAL
+done