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The Graveyard - Products No Longer Supported => D-Link Storage => DNS-320L => Topic started by: natedogg on March 31, 2017, 07:06:24 AM

Title: NAS to NAS Remote Backup using DDNS
Post by: natedogg on March 31, 2017, 07:06:24 AM
Hi guys,

I bought 3 of these Dlink 320 L units. 1 for file storage, one to have a local backup and one as a remote backup.

The file storage works great as does the local backup using the built in application.
When it comes to using the remote backup it insists on the remote IP being an integer (i.e I cannot use the dlinkddns.com name lookup I have created. Am I missing something here. This seems to use Rsync protocol via the dlink wizard interface but this namelookup call is not allowed so basically if I have a dynamic IP I can't do a remote backup even if I have got a ddns setup. I have scoured the internet and this forum but simply cant find anyone else asking about this issue?!

Every page and tutorial etc just shows an IP address being put into the 'remote IP' field when setting up a remote backup task not the option of a ddns address which at the end of the day is the saem thing. Why is this missing or am I missing something.

PS - I have upgraded tot he latest firmware and opened the necessary ports on the router and forwarded them to the NAS it is purely that unless I change my internet and pay for a static IP this function appears to be useless.

Please advise if possible. Cheers. Nate

Title: Re: NAS to NAS Remote Backup using DDNS
Post by: ivan on April 01, 2017, 01:59:14 PM
Am I correct in assuming that one of your three units is located off site and you are trying to communicate with it?

Something like:
NAS  -->  local network -->  router --> www -->  router  -->  local network  -->  NAS
With the external IP addresses of the two routers being your unknowns (you do need to know both ends because rsync talks back and forth to enable synchronization between the two NAS boxes.

If you are using rsync then you need a numeric IP address unless you rewrite that part to use a host name and then recompile it for the NAS.
Title: Re: NAS to NAS Remote Backup using DDNS
Post by: FurryNutz on April 03, 2017, 09:08:45 AM
Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)


What Mfr and model is the main host router?
What Mfr and model is the ISP modem being used? Built in router?

Hi guys,

I bought 3 of these Dlink 320 L units. 1 for file storage, one to have a local backup and one as a remote backup.

The file storage works great as does the local backup using the built in application.
When it comes to using the remote backup it insists on the remote IP being an integer (i.e I cannot use the dlinkddns.com name lookup I have created. Am I missing something here. This seems to use Rsync protocol via the dlink wizard interface but this namelookup call is not allowed so basically if I have a dynamic IP I can't do a remote backup even if I have got a ddns setup. I have scoured the internet and this forum but simply cant find anyone else asking about this issue?!

Every page and tutorial etc just shows an IP address being put into the 'remote IP' field when setting up a remote backup task not the option of a ddns address which at the end of the day is the saem thing. Why is this missing or am I missing something.

PS - I have upgraded tot he latest firmware and opened the necessary ports on the router and forwarded them to the NAS it is purely that unless I change my internet and pay for a static IP this function appears to be useless.

Please advise if possible. Cheers. Nate
Title: Re: NAS to NAS Remote Backup using DDNS
Post by: natedogg on April 05, 2017, 06:31:33 AM
Thanks for the replies...

Thats basically the issue Ivan I need to use the dynamic dns entry not a fixed numeric IP as this will change at which point my remote backups would fail to automate. Not sure why dlink would provide a ddns service with the NAS which I registered and have working if it is then not something that can be used for backup purposes.


Hi FurryNutz - the firmware is 1.06 (latest one I downloaded off the site in the hope it would have been a fix but no joy).
Title: Re: NAS to NAS Remote Backup using DDNS
Post by: FurryNutz on April 05, 2017, 06:36:25 AM
What Mfr and model is the main host router?
What Mfr and model is the ISP modem being used? Built in router?
Title: Re: NAS to NAS Remote Backup using DDNS
Post by: AnDas on April 08, 2017, 03:08:22 AM
I have the same issue.

If I know and use the remote ip everything works great with the remote backup. But from time to time the remote ip changes, so I have a ddns account for that reason. The problem is on the remote settings of the “remote backup” application. It allows you to enter ONLY the remote ip and not the ddns url (that points to the remote ip).

For the time being I check and update the remote ip manually, but it would be much easier to be able to put the ddns url at the remote ip field.
I have 320L and 327L and this happens on both machines, so the issue is at the “remote backup” application…
 8)
Title: Re: NAS to NAS Remote Backup using DDNS
Post by: AnDas on April 08, 2017, 03:16:15 AM
There is a workaround although.
You can do the remote backup with the “FTP/HTTP downloads” application.
You can setup a FTP account on the remote NAS and do the backup via a FTP session. The FTP application accepts urls . I used to do this with my old 323 NAS.
Title: Re: NAS to NAS Remote Backup using DDNS
Post by: ivan on April 08, 2017, 08:03:13 AM
I was going to suggest FTP but that doesn't do incremental transfer - you get all or nothing.

While there is nothing wrong with this approach it can get cumbersome if there are a lot of small changes and you need to keep older versions.