Technology technology!

Well, I managed to solve my problem of network access by the various machines.  It was quite simple in the end.  Ubuntu now comes with a firewall application called ufw, the uncomplicated firewall.  What I had forgotten was that it was enabled and it only allowed traffic in and out on port 80.  So all I had to do was tell the firewall to open a port for ssh as defined in /etc/sshd_config and to allow connections from all machines on the local network.

Open a terminal and type:

sudo ufw status
sudo ufw logging on
sudo ufw allow <SSH port>
sudo ufw allow from 192.168.0.0/16
sudo ufw status

All you need now is a nice graphical front end so you don’t have to type into the terminal.

Now I can connect to the server and the desktop from the macbook via ssh and through the network shares defined in samba.  I can drag and drop files between the various machines.

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