topic Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall in Everything else

NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Wed, 30 Nov 2022 14:11:53 GMT

I have opened ports 20, 21 and 55536-55567 on the Hub but FTP (non-encrypted) access to a shared folder, from outside my network is refused. Has anyone experienced this or know how to fix it?

Thanks

Jon

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Baldrick1 — Wed, 30 Nov 2022 14:28:42 GMT

@J0N Welcome to the Community Forums.

What are the settings on your Plusnet Account firewall? https://www.plus.net/member-centre/broadband/firewall

Moderators Note

This topic has been moved from Broadband to Everything Else

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Wed, 30 Nov 2022 15:37:54 GMT

Hi. The PlusNet Account Firewall is off.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Fri, 02 Dec 2022 15:21:26 GMT

Does anyone know how I can contact PlusNet technical support to solve this?

I've tried the phone number but there is no option for Tech Support.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

southerner — Fri, 02 Dec 2022 15:55:23 GMT

@Jon - Have you Forwarded the FTP port from your external (Plusnet) IP to your NAS's internal/local IP?

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Dan_the_Van — Fri, 02 Dec 2022 16:07:54 GMT

There is no direct access to Technical Support to customers, if you're lucky one will pick up your question here, but they are not always here.

Which Hub are you using? Which NAS drive?

Does the Hub event log looking a category firewall show the inbound connection?

I take it you can ftp locally between your devices and the NAS drive?

Does the NAS drive have a firewall which needs to changed to allow foreign IP Addresses (not your network) to connect?

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Champnet — Fri, 02 Dec 2022 16:17:06 GMT

Not sure why you’ve opened port 20 but the rest of the details look like a passive setup.

Is your Client set up as passive or active ?
Can you connect to the server from within your local network ?

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Fri, 02 Dec 2022 16:51:53 GMT

Hi @Champnet

I will ask the client re active/passive.

Yes, I can connect from within my local network, so it seems (to me) to be a firewall issue.

I will close port 20 and keep 21 open.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Fri, 02 Dec 2022 17:03:24 GMT

Hi Dan_the_Van

I'm using a Hub 2 with a Synology DS720+

The hub event log doesn't show the inbound connection.

Local connection is fine, yes.

The NAS has a firewall but it is turned off and I'm only allowing a specified user to access.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Fri, 02 Dec 2022 17:06:26 GMT

Incoming FTP connection is active not passive

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Dan_the_Van — Fri, 02 Dec 2022 18:56:22 GMT

@J0N

I've had a quick fiddle and I can get a port 21 FTP and port 22 SFTP download to work through my Hub Two, so something must be wrong with the rules. My plusnet account firewall is set to LOW.

HTH

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Champnet — Fri, 02 Dec 2022 19:22:36 GMT

I’ve just setup FTP on my Synology box using exactly the same settings as @J0N

ports 20 &21 do need to be open on the router.

client complained ‘insecure server it does not support FTP over TLS”

Using FileZilla changed to passive mode and connected.

@J0N once you get it working you do need to use a more secure setup….

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Champnet — Fri, 02 Dec 2022 19:56:08 GMT

@J0N wrote:

Incoming FTP connection is active not passive

You need to change the client to passive mode.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Mon, 05 Dec 2022 12:13:37 GMT

An active connection is my only option here, unfortunately. I'm not a pro networker so reaching the limit of my knowledge 😞

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Champnet — Mon, 05 Dec 2022 12:23:57 GMT

Which FTP client are you using ?

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Mon, 05 Dec 2022 13:30:20 GMT

Hi Champnet

On the NAS I'm using Synology's own, via Control Panel > File Services > FTP enabled

I have a DDNS set up via Control Panel > External User to point at my IP.

On a second computer I test access using FileZilla. It's on the same network so I disconnect it first and then connect through a tethered mobile phone on 4G.

The external user I have set up for access only has an active FTP or FTPS option.

Neither the external user, nor I, can connect.

Jon

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Champnet — Mon, 05 Dec 2022 13:50:38 GMT

Looks like Synology will only use passive mode.

In Filezilla , Site Manager, select your connection,

General Tab: protocol = FTP.

Advanced Tab: server type = Unix

Transfer Settings Tab: transfer mode = passive.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Dan_the_Van — Mon, 05 Dec 2022 13:59:38 GMT

@J0N

You can check if the ports are open using this tool

https://www.yougetsignal.com/tools/open-ports/

You have setup port forwards rules on the Hub Two?

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

Champnet — Mon, 05 Dec 2022 14:09:55 GMT

@J0N There’s a good guide here :

https://support.aceperipherals.com/kb/faq.php?id=230

the only open ports on your router should be 20 & 21 which should be forwarded to your Synology box.

Re: NAS shared folder, access using FTP through PlusNet Hub Two Firewall

J0N — Mon, 05 Dec 2022 17:08:05 GMT

Hi Champnet

Thank you for your help.

The only option I have is Active Mode, so it looks like the Hub 2 is set up correctly now, but the block is the Synology NAS. I'll get in contact with Synology to see if they can support Active mode.

Jon