diff --git a/check-dns.sh b/check-dns.sh
new file mode 100644
index 0000000..6d70dbb
--- /dev/null
+++ b/check-dns.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+#from https://github.com/spiritLHLS/pve
+
+DNS_SERVER="8.8.8.8"
+RESOLV_CONF="/etc/resolv.conf"
+
+grep -q "^nameserver ${DNS_SERVER}$" ${RESOLV_CONF}
+
+if [ $? -eq 0 ]; then
+    echo "DNS server ${DNS_SERVER} already exists in ${RESOLV_CONF}."
+else
+    echo "Adding DNS server ${DNS_SERVER} to ${RESOLV_CONF}..."
+    echo "nameserver ${DNS_SERVER}" >> ${RESOLV_CONF}
+fi