If you use PASV mode - you don't have to open inbound ports in your firewall.  In PASV mode, the server makes the connection outwards towards the PC that initiated the FTP connection.  Its a great way of getting around the problems with a NAT/PAT firewall/router.

So you don't have modify the port range in the server,  And you don't have to open ports on the firewall, either a external firewall or the firewall software in the BlueOnyx server.  As long as your external firewall forward in TCP port 21 to the BlueOnyx server - PASV FTP connections should work.

Give it a try.  Turn on FTP and try a PASV mode connect from outside your network.


Chuck

---------- Original Message -----------
From: Philip Hamer <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Mon, 12 Jan 2015 18:03:16 +0000
Subject: [BlueOnyx:16847]  Secure FTP Ports

> Hi.
>
> Tracked down PASV mode in proftpd.conf.
>
> There is a massive range of ports. If I narrow this down to say 10, then open my external firewall to that port range, then port forward to my BO server this could work.
>
> I guess I'll have to open the firewall on the BO box as well.
>
> Any suggestions if this is safe / recommended?
> FTP is hardly ever used, we are CMS based now on most sites, a few friends host a website on the BO box so maybe three of them use FTP anyway. No need for massive connections or throughout.
>
> I should have migrated from the old Zywall kit over to PFsense within a couple of weeks, although reading some posts on FTPS with PFsense this can be problematic.
>
> Thanks guys, any help is much appreciated.
>
> Sent from my iPhone
>
> > On 12 Jan 2015, at 17:00, [email protected] wrote:
> >
> > Secure FTP Ports
>
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------- End of Original Message -------
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