Update 2025-04-12_09:56:11

dns_health_check.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# Script Version: 02
+# Description: Periodically verify consistency between ns1, ns2, and Google nameserver DNS records for a specific domain.
+
+# Set Variables
+# ========
+NS1="23.88.113.138"
+NS2="116.202.112.180"
+GOOGLE_NS="8.8.8.8"
+DOMAIN="es1.dynproxy.net"
+LOG_FILE="/var/log/dns_health_check.log"
+
+# Main Process
+# ========
+IP_NS1=$(dig @$NS1 $DOMAIN A +short)
+IP_NS2=$(dig @$NS2 $DOMAIN A +short)
+IP_GOOGLE=$(dig @$GOOGLE_NS $DOMAIN A +short)
+
+if [ "$IP_NS1" == "$IP_NS2" ] && [ "$IP_NS1" == "$IP_GOOGLE" ]; then
+    echo "[$(date)] DNS records are consistent across all nameservers: $IP_NS1" >> "$LOG_FILE"
+else
+    echo "[$(date)] DNS inconsistency detected!" >> "$LOG_FILE"
+    echo "[$(date)] ns1: $IP_NS1, ns2: $IP_NS2, Google: $IP_GOOGLE" >> "$LOG_FILE"
+fi
+