diff --git a/tools/write-template-zone-file.cr b/tools/write-template-zone-file.cr
new file mode 100644
index 0000000..a050e79
--- /dev/null
+++ b/tools/write-template-zone-file.cr
@@ -0,0 +1,35 @@
+require "json"
+require "../src/storage/zone.cr"
+
+alias DSZ = DNSManager::Storage::Zone
+
+#
+# Create a zone file.
+#
+
+if ARGV.size < 1
+	puts "usage: domain"
+	exit 0
+end
+
+domain = ARGV[0]
+zone = DSZ.new domain
+
+#
+# Add some values.
+#
+
+zone << DSZ::SOA.new  "#{domain}.", # name
+  3600.to_u32,                      # TTL
+  "ns0.arn-fai.net.",               # Master Name Server for the zone
+  "dnsmaster.arn-fai.net.",         # admin email address
+  2023070100.to_u64,                # serial
+        3600.to_u64,                # refresh
+         600.to_u64,                # retry
+     2419200.to_u64,                # expire
+         600.to_u64                 # minimum TTL
+
+zone << DSZ::NS.new "#{domain}.", 3600.to_u32, "ns0.arn-fai.net."
+zone << DSZ::NS.new "#{domain}.", 3600.to_u32, "alsace.tetaneutral.net."
+
+File.write("#{domain}.json", zone.to_json)