Mailinglist Archive: opensuse (3644 mails)

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Re: [SLE] connect two boxes thru the internet... but how
  • From: Austin Morgan <admorgan@xxxxxxxxxxxxxxxxxxx>
  • Date: Sun, 3 Mar 2002 12:50:36 -0600
  • Message-id: <20020303125036.A27422@xxxxxxxxxxxxxxxxxxxxxxxxxx>
This is a lot more complicated than ftp or scp, but it is a clearer
method to acomplish what you are suggesting. You might look at sfs.
The self-certifying file system will give you the security and share the
files out as a shared directory. I have never implemented this as a mac
but I am sure there is a mac client out there. Another option would be
to set up an ssh tunnel to an nfs share or a vpn setup. They all have
their strengths and weaknesses. As strange as it may sound the VPN
setup would probably be the easiest, just do the the ammount of
information available to setup an VPN network on any type of system.
Another option is to setup an majordomo type configuration so as people
could send in an e-mail request for the image they need and it would
e-mail it to them. The only problem there is they would need to know
what images are available. As to how do they find you, you would need
to make your ip address known to the host. I personally use a service
called If you find them useful please donate something
to them. It will make your dynamic ip (or static) accesable by name
such as I hope this helps, there is unfortunately no
best option. If you do not feel you are capable of doing the setup
yourself you might go to your LUG and ask participants there. It is
amazing how mcuh information you can get from a LUG.

Good luck,

On Sun, Mar 03, 2002 at 09:05:46AM +0100, Piet Roorda wrote:
James Bliss wrote:

03/02/02 02:03:03 PM, Piet Roorda <prooroa@xxxxxxxxxx> wrote:

I don't have any influence ont the software the people of the Mac or the
Windows box are using, is scp still an option then?
So I do port 21 instead of 22.
Still 2 things are bugging me:
How do they find me (the linux box on the internet)
and what is "decent" security in the entire context?
I do not think I'll be able to set and reset the firewall all the time,
closing and setting up FTP, is it possible to do this by a script after
the download has finished?
Austin Morgan wrote:

One small item out of Jim's suggestion, you should open port 21 not 22
for ftp. Also you might look at using an scp client on and ssh on the
host. This is far more secure than ftp, and a lot easier to set up than
some secure ftp servers.


Sorry about the port 21/22 mistake, I was typing faster than I was thinking.

Just like FTP, you can get SCP clients which are either shareware or
freeware from the internet.

I do not understand what you are asking about how to connect. You
should just be able to do an ifconfig and determine what IP address they
need to connect to. This is assuming that you have a public IP address.

SSH is supposed to be secure (Secure SHell).

Regardless, you will need to make certain that the appropriate port is open
in the firewall. This is port 22 for SSH by default but can be set to any
you like with the -p option for the sshd (ssh deamon).

There is a man page for sshd.

The script to start and stop SuSEfirewall2 is named just that.

SuSEfirewall2 stop - this will stop the firewall
SuSEfirewall2 start - this will restart the firewall

Make certain you have read all of the documentation and feel comfortable
with it. Otherwise, you should not be doing this.

Also, why can't you just email the document to them? Regardless of your
connection, email or remote access will take the same amount of time to
transmit the document.

I'll explain the actual situation:
at the moment the workflow is like this:
I scan my images in a batch scan, say 20 images, and mail them to a
photodesk or whatever.
I sent them in batches of 5 so I wont jam their mailbox if something
goes wrong.
They probably use only 5. Then there are some they want to use in
Hi-res. but as I don't know which in advance
I sent the lot in Hi-res.
All in all a lot of data traffic, and too much time spent behind my box.

If they (the picturedesk) would be able to fetch the pictures from my
box, and could make a selection,
I just do the batchscan and mail them a password and they can
select/fetch the images they realy want want in a desired filesize/type


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