clearly someone needs their hand held so let me see if i can put an end to all of this madness.
you want to scp a tarball from your server to your workstation (its easier to do it vice versa but whatever)
you'll need to setup an openssh server on your workstation (ill leave that up to you to figure out)
make sure openssh is started, a quick way to determine this is to do `nmap localhost` - look for 22 OPEN
if you're running iptables or some kind of firewall you'll also need to make sure port 22 is accepted/permitted
im not sure what kind of router you have in Germany but either way you'll need to setup port forwarding (nat statements) TO your workstation on port 22
if you can ssh from your server to your workstation then you'll obviously see traffic is working as it should.
from here you'll need to set up a key pair so you can ssh without a password as noted earlier in this thread. a good tutorial of this is here http://www.thegeekstuff.com/2008/11/...n-ssh-copy-id/
if you've made it this far and everything is working like it should you can no go ahead with whatever method you want to use to transfer your files
you@server:-$ scp user@client:/path/to/logfile /local/path/to/put/logfile
a cron job w/ scp would be a good option
the rest is up to you...