# No-IP automatic Dynamic DNS update # #--------------- Change Values in this section to match your setup ------------------
# No-IP User account info :local noipuser "your_no-ip_user" :local noippass "your_no-ip_pass"
# Set the hostname or label of network to be updated. # Hostnames with spaces are unsupported. Replace the value in the quotations below with your host names. # To specify multiple hosts, separate them with commas. :local noiphost "hostname.no-ip.net"
# Change to the name of interface that gets the dynamic IP address :local inetinterface "your_external_interface"
#------------------------------------------------------------------------------------ # No more changes need
:local previousIP
if ( [:len [/file find name=("no-ip_ddns_previousip.txt")]] > 0 ) do={ :set previousIP [/file get ("no-ip_ddns_previousip.txt") contents] }
:if ([/interface get $inetinterface value-name=running]) do={ # Get the current IP on the interface :local currentIP [/ip address get [find interface="$inetinterface" disabled=no] address]
# Strip the net mask off the IP address :for i from=( [:len $currentIP] - 1) to=0 do={ :if ( [:pick $currentIP $i] = "/") do={ :set currentIP [:pick $currentIP 0 $i] } }
:if ($currentIP != $previousIP) do={ :log info "No-IP: Current IP ($currentIP) is not equal to previous IP ($previousIP), update needed"
# The update URL. Note the "\3F" is hex for question mark (?). Required since ? is a special character in commands. :local url "http://dynupdate.no-ip.com/nic/update\3Fmyip=$currentIP" :local noiphostarray :set noiphostarray [:toarray $noiphost] :foreach host in=$noiphostarray do={ :log info "No-IP: Sending update for $host" /tool fetch url=($url . "&hostname=$host") user=$noipuser password=$noippass mode=http dst-path=("no-ip_ddns_update-" . $host . ".txt") :log info "No-IP: Host $host updated on No-IP with IP $currentIP" /file print file=("no-ip_ddns_previousip.txt") :delay 3 /file set contents="$currentIP" ("no-ip_ddns_previousip.txt") } } else={ :log info "No-IP: Previous IP $previousIP is equal to current IP, no update needed" } } else={ :log info "No-IP: $inetinterface is not currently running, so therefore will not update." }