diff --git a/DynDNS/install.sh b/DynDNS/install.sh
new file mode 100644
index 0000000..c2ed912
--- /dev/null
+++ b/DynDNS/install.sh
@@ -0,0 +1,21 @@
+# Download lua script
+wget https://git.znachor.cz/znachor/OpenWrt-Tools/raw/branch/master/DynDNS/dyndns.lua -O /root/dyndns.lua
+
+# Set local domain
+domain=$(uci get dhcp.@dnsmasq[0].domain)
+sed -i "s/.lan/.$domain/gi" /root/dyndns.lua
+
+# Create dhcp script
+echo "lua /root/dyndns.lua" > /root/dyndns.sh
+
+# Allow execution
+chmod +x /root/dyndns.*
+
+# Add dhcpscript to the config
+uci set dhcp.@dnsmasq[0].dhcpscript='/root/dyndns.sh'
+
+# Add addnlist to the config
+uci set dhcp.@dnsmasq[0].addnhosts='/tmp/dyndns'
+
+# Reload dnsmasq
+service dnsmasq reload
\ No newline at end of file