Edge device requirements for Opalstack server connections ?

dragonxi

(1) Ubuntu OS version ?

(2) Filezilla version ?

We need the above information
to buy new edge devices which will be
able to transfer files to/from the Opalstack
server we use.

Older Ubuntu PCs and laptops are
not anymore capable to transfer files
with Opalstack server.

The server upgrade requires
security algoritms/software not
available in some older Ubuntu devices.

Unfortunately we could not upgrade
Filezilla client in older Ubuntu devices.

Unfortunately upgrading Ubuntu OS
not possible with some older edge devices.

(3) which version of (1) and (2)
(a) minimum ?
(b) ok ?
(c) recommended ?
(d) definetely ok ?
(e) ok for development (latest OS & hw) ?

thanks in advance for advice!

sean

We do not have any specific minimum client OS version requirements for file transfers.

I think the only requirement that might affect old devices is that the device must support TLV v1.2 or higher.

dragonxi

What is the minimum Filezilla
version the server we use
requires ?

Which Ubuntu version
comes and/or is capable to upgrade
its Filezilla to the version
your server requires ?

Do you use or know who does use
any Ununtu version with required
Filezilla version ? which one ? URL ?

Please note the following
challenges we face when updating our
edge devives for your server upgrades
(which were well done):

the latest Filezilla may require
a newer Ubuntu OS
that newer Ubuntu OS may require
a newer edge device
....
ref by Peter:

We rolled out a security update on our
SSH/SFTP configuration a couple of months
ago to patch our servers against
the Terrapin vulnerability.

This update removed some
outdated/inferior key exchange algorithms
(like, for example, Diffie-Hellman Group 1 SHA1).

The errors recorded in the server logs
regarding your recent connection attempts
look like this:

vps116 sshd[26405]:
Unable to negotiate with 213.28.227.218 port 45756:
no matching key exchange method found.
Their offer: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,rsa2048-sha256,rsa1024-sha1 [preauth]

I think the error you're seeing is likely
to be caused by an outdated version of
FileZilla installed on your Ubuntu workstation.

Please try updating your FileZilla client
to the latest version
(available at https://filezilla-project.org)
and let us know if the problem persists
after that.

Thanks!

Peter from (((Opalstack

sean

dragonxi I think you'll need to upgrade to Ubuntu 20.4 or higher. After upgrading you should be able to use whatever version of FileZilla is provided in the Ubuntu package repos.

dragonxi

Which OS does Opalstack support
use in edge devices/workstations/laptops
and which releases/versions ?

Which ones of those have compatible
file system with the Opalstack Linux server ?

If the file system is not compatible with
the Linux server, how do you solve it
specially if there are folders with
many files (dos2unix suitable only
for few files) suchs the fpm2xxxxxxx we have?

Any good alternative for Linux in
workstations/laptops instead of Ubuntu ?

Does Opalstack support use Windows in workstations
/laptops and which version & do you run
Linux under Windows ?

Tips more than welcome !

sean

We don't have any specific OS version requirement. You should be able to connect to SFTP on our servers via any OS that has a SSH stack that doesn't use the ciphers and key exchange algorithms related to the Terrapin vulnerability.

If you can let me know what version of Ubuntu you're running then I might be able to help you locate a solution. If you prefer not to share that information here in the public forum then please email it to our support team.

dragonxi

Hi Sean,
Thanks taking a look
if there is anything to be done
to get the old Ubuntu laptop
to work again with the server
with new security updates.

We emailed you more details.
take your time but not too much
yours is valuable to many!