commit eac0f33554458e5348b7be60b662c0e30b7afb61
Author: Aaron <git@ar21.de>
Date:   Mon Mar 7 06:45:46 2022 +0100

    initial commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0e1cd65
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+DDNS scripts for legacy IP and real IP for Hetzner DNS API written in Bash
\ No newline at end of file
diff --git a/ddns4.sh b/ddns4.sh
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index 0000000..9aea10d
--- /dev/null
+++ b/ddns4.sh
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+#!/bin/bash
+##########################################################################################
+# SETTINGS
+HETZNER_API_TOKEN=""  # https://dns.hetzner.com/settings/api-token
+SERVERNAME=""         # desired subdomain  e.g. "server1"
+DNSZONE=""            # name of the zone in DNS Console  e.g. "example.com"
+##########################################################################################
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+    if [[ $? -ne 0 ]]; then
+        echo "Software dependency not met: $1"
+        exit 1
+    fi
+}
+for COMMAND in "curl" "jq" "grep"; do
+    command_exists "${COMMAND}"
+done
+#############################################
+#HTTP Response Code Echo
+response_code() {
+	if [ $1 == "200" ]; then echo "$1 Success";
+	elif [ $1 == "401" ]; then echo "$1 Unauthorized" && exit 1;
+	elif [ $1 == "403" ]; then echo "$1 Forbidden" && exit 1;
+	elif [ $1 == "406" ]; then echo "$1 Not acceptable" && exit 1;
+	elif [ $1 == "422" ]; then echo "$1 Unprocessable entity" && exit 1;
+	else echo "$1 Unknown Status Code" && exit 1; fi
+}
+#############################################
+#get IPv4 address:
+IPv4="$(curl -s4 https://ip.hetzner.com)"
+echo "#####################"
+echo "DDNS Manager by Aaron"
+echo "started $(date)"
+echo "DNS Record will be $SERVERNAME.$DNSZONE"
+echo -n "IPv4 is: "
+echo $IPv4
+echo ""
+#############################################
+API_STATUS_CODE=$(curl -o /dev/null -s -w "%{http_code}" "https://dns.hetzner.com/api/v1/zones" -H "Auth-API-Token: ${HETZNER_API_TOKEN}")
+if [ $API_STATUS_CODE != "200" ]; then
+	echo "API ERROR"
+	response_code $API_STATUS_CODE
+fi
+if [ -z $IPv4 ]; then
+	echo "no IPv4 found"
+	exit 1
+fi
+#############################################
+HETZNER_API_ZONE=$(curl -s "https://dns.hetzner.com/api/v1/zones" -H "Auth-API-Token: ${HETZNER_API_TOKEN}" | jq -r ".zones[] | select(.name==\"$DNSZONE\") | .id")
+#############################################
+echo "Check DNS Console for existing records"
+RECORDS=$(curl -s "https://dns.hetzner.com/api/v1/records?zone_id=${HETZNER_API_ZONE}" \
+ -H "Auth-API-Token: ${HETZNER_API_TOKEN}")
+echo $RECORDS | jq -r '.records[] | select(.type=="A") | .name' | grep -q $SERVERNAME
+if [ $? -eq 1 ]; then
+	echo "Record not found" 
+	echo -n "Set new Record: "
+	response_code $(curl -o /dev/null -s -w "%{http_code}" -X "POST" "https://dns.hetzner.com/api/v1/records" \
+	     -H 'Content-Type: application/json' \
+	     -H "Auth-API-Token: ${HETZNER_API_TOKEN}" \
+	     -d $"{
+	  \"value\": \"${IPv4}\",
+	  \"ttl\": 60,
+	  \"type\": \"A\",
+	  \"name\": \"${SERVERNAME}\",
+	  \"zone_id\": \"${HETZNER_API_ZONE}\"
+	}")
+	echo ""
+else
+	echo "Record already there"
+	RECORD_ID=$(echo $RECORDS | jq -r '.records[] | select(.type=="A") | select(.name=="'${SERVERNAME}'") | .id' | head -1)
+	echo -n "Current IP from Record: "
+	OLD_IP=$(echo $RECORDS | jq -r '.records[] | select(.type=="A") | select(.name=="'${SERVERNAME}'") | .value' | head -1)
+	echo $OLD_IP
+	if [ $IPv4 != $OLD_IP ]; then
+		echo "IP has changed"
+		echo -n "Updating Record... "
+		response_code $(curl -o /dev/null -s -w "%{http_code}" -X "PUT" "https://dns.hetzner.com/api/v1/records/$RECORD_ID" \
+		     -H 'Content-Type: application/json' \
+		     -H "Auth-API-Token: ${HETZNER_API_TOKEN}" \
+		     -d $"{
+		  \"value\": \"${IPv4}\",
+		  \"ttl\": 60,
+		  \"type\": \"A\",
+		  \"name\": \"${SERVERNAME}\",
+		  \"zone_id\": \"${HETZNER_API_ZONE}\"
+		}")
+		echo ""
+	else
+		echo "IP has not changed"
+	fi
+fi
+exit 0
diff --git a/ddns6.sh b/ddns6.sh
new file mode 100755
index 0000000..d2e7ff0
--- /dev/null
+++ b/ddns6.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+##########################################################################################
+# SETTINGS
+HETZNER_API_TOKEN=""  # https://dns.hetzner.com/settings/api-token
+SERVERNAME=""         # desired subdomain  e.g. "server1"
+DNSZONE=""            # name of the zone in DNS Console  e.g. "example.com"
+##########################################################################################
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+    if [[ $? -ne 0 ]]; then
+        echo "Software dependency not met: $1"
+        exit 1
+    fi
+}
+for COMMAND in "curl" "jq" "grep"; do
+    command_exists "${COMMAND}"
+done
+#############################################
+#HTTP Response Code Echo
+response_code() {
+	if [ $1 == "200" ]; then echo "$1 Success";
+	elif [ $1 == "401" ]; then echo "$1 Unauthorized" && exit 1;
+	elif [ $1 == "403" ]; then echo "$1 Forbidden" && exit 1;
+	elif [ $1 == "406" ]; then echo "$1 Not acceptable" && exit 1;
+	elif [ $1 == "422" ]; then echo "$1 Unprocessable entity" && exit 1;
+	else echo "$1 Unknown Status Code" && exit 1; fi
+}
+#############################################
+#get IPv6 address:
+IPv6=$(curl -s6 https://ip.hetzner.com)
+echo "#####################"
+echo "DDNS Manager by Aaron"
+echo "started $(date)"
+echo "DNS Record will be $SERVERNAME.$DNSZONE"
+echo -n "IPv6 is: "
+echo $IPv6
+echo ""
+#############################################
+API_STATUS_CODE=$(curl -o /dev/null -s -w "%{http_code}" "https://dns.hetzner.com/api/v1/zones" -H "Auth-API-Token: ${HETZNER_API_TOKEN}")
+if [ $API_STATUS_CODE != "200" ]; then
+	echo "API ERROR"
+	response_code $API_STATUS_CODE
+fi
+if [ -z $IPv6 ]; then
+	echo "no IPv6 found"
+	exit 1
+fi
+#############################################
+HETZNER_API_ZONE=$(curl -s "https://dns.hetzner.com/api/v1/zones" -H "Auth-API-Token: ${HETZNER_API_TOKEN}" | jq -r ".zones[] | select(.name==\"$DNSZONE\") | .id")
+#############################################
+echo "Check DNS Console for existing records"
+RECORDS=$(curl -s "https://dns.hetzner.com/api/v1/records?zone_id=${HETZNER_API_ZONE}" \
+ -H "Auth-API-Token: ${HETZNER_API_TOKEN}")
+echo $RECORDS | jq -r '.records[] | select(.type=="AAAA") | .name' | grep -q $SERVERNAME
+if [ $? -eq 1 ]; then
+	echo "Record not found" 
+	echo -n "Set new Record: "
+	response_code $(curl -o /dev/null -s -w "%{http_code}" -X "POST" "https://dns.hetzner.com/api/v1/records" \
+	     -H 'Content-Type: application/json' \
+	     -H "Auth-API-Token: ${HETZNER_API_TOKEN}" \
+	     -d $"{
+	  \"value\": \"${IPv6}\",
+	  \"ttl\": 60,
+	  \"type\": \"AAAA\",
+	  \"name\": \"${SERVERNAME}\",
+	  \"zone_id\": \"${HETZNER_API_ZONE}\"
+	}")
+	echo ""
+else
+	echo "Record already there"
+	RECORD_ID=$(echo $RECORDS | jq -r '.records[] | select(.type=="AAAA") | select(.name=="'${SERVERNAME}'") | .id' | head -1)
+	echo -n "Current IP from Record: "
+	OLD_IP=$(echo $RECORDS | jq -r '.records[] | select(.type=="AAAA") | select(.name=="'${SERVERNAME}'") | .value' | head -1)
+	echo $OLD_IP
+	if [ $IPv6 != $OLD_IP ]; then
+		echo "IP has changed"
+		echo -n "Updating Record... "
+		response_code $(curl -o /dev/null -s -w "%{http_code}" -X "PUT" "https://dns.hetzner.com/api/v1/records/$RECORD_ID" \
+		     -H 'Content-Type: application/json' \
+		     -H "Auth-API-Token: ${HETZNER_API_TOKEN}" \
+		     -d $"{
+		  \"value\": \"${IPv6}\",
+		  \"ttl\": 60,
+		  \"type\": \"AAAA\",
+		  \"name\": \"${SERVERNAME}\",
+		  \"zone_id\": \"${HETZNER_API_ZONE}\"
+		}")
+		echo ""
+	else
+		echo "IP has not changed"
+	fi
+fi
+exit 0