NO-IP DDNS Script - help please

RouterOS Beginner Basics
1

Hi All,

noob here again... I've got a problem with a ddns script i got from RouterOS - RouterOS - MikroTik Documentation

Script here:

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

:global previousIP

: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, update needed"
:set previousIP $currentIP

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=$currentIP](http://dynupdate.no-ip.com/nic/update%5C3Fmyip=$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"
   }

} 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."
}

I replaced the information required in the top section with my details...

However it is detecting that my IP has changed every time even though it hasn't...

The text file that it generates is here:

nochg 10X.16X.12X.20X

(some numbers replaced with X for privacy)

I think it has something to do with the previousIP variable where it's not being set or not remembered? Or should it be looking at the text file for the previous IP?

I'm so lost...

Could anyone shed some light on this?

2

I use this script (for “name.no-ip.BIZ”)
Change “.BIZ” to your domain.

##############Script Settings##################

:local NOIPUser "username"
:local NOIPPass "password"
:local WANInter "wan-interface-name"

###############################################

:local NOIPDomain "$NOIPUser.no-ip.biz"
:local IpCurrent [/ip address get [find interface=$WANInter] address];
:for i from=( [:len $IpCurrent] - 1) to=0 do={ 
  :if ( [:pick $IpCurrent $i] = "/") do={ 
    :local NewIP [:pick $IpCurrent 0 $i];
    :if ([:resolve $NOIPDomain] != $NewIP) do={
      /tool fetch mode=http user=$NOIPUser password=$NOIPPass url="http://dynupdate.no-ip.com/nic/update\3Fhostname=$NOIPDomain&myip=$NewIP" keep-result=no
      :log info "NO-IP Update: $NOIPDomain - $NewIP"
     }
   } 
}
3

Hey there! thanks for the response…

I use this script (for “name.no-ip.BIZ”)
Change “.BIZ” to your domain.

##############Script Settings##################

:local NOIPUser “username”
:local NOIPPass “password”
:local WANInter “wan-interface-name”

###############################################

:local NOIPDomain “$NOIPUser.no-ip.biz”
:local IpCurrent [/ip address get [find interface=$WANInter] address];
:for i from=( [:len $IpCurrent] - 1) to=0 do={
:if ( [:pick $IpCurrent $i] = “/”) do={
:local NewIP [:pick $IpCurrent 0 $i];
:if ([:resolve $NOIPDomain] != $NewIP) do={
/tool fetch mode=http user=$NOIPUser password=$NOIPPass url=“http://dynupdate.no-ip.com/nic/update\3Fhostname=$NOIPDomain&myip=$NewIP” keep-result=no
:log info “NO-IP Update: $NOIPDomain - $NewIP”
}
}
}

>

does this check to see if the IP of the RB has changed? I really don't want to get blacklisted for doing unnecessary updates...

thanks
4

I have no problem with this script.
It makes ddns-record only when ip-address was changed.
Just try to create a new script and run it manually (1 time in 2 minutes).
Sorry for my bad english.

5

Thank you …

I trawled the forum and found this one:

http://forum.mikrotik.com/t/dynamic-dns-one-script-to-rule-them-all/59088/1

It works well from what I can see …

Thanks for your input though