Mount a remote file system using ssh

[CONTEXT]
Access a remote file system  
[WHEN] 
You want to transfer files from/to a server which you have a ssh access
[HOW]   
As root:
install fuse
#apt-get install fuse-utils sshfs ssh
and load its kernel module
#modprobe fuse
add your regular user to fuse's group
#adduser [your-user] fuse
(reboot the machine)
Now using your regular user:
Mount your remote directory:
$ sshfs [user@]host:[dir] mountpoint [options]
e.g.
$sshfs remote-user@remote.server:/remote/directory /home/user/remote/
(If you only put  ':' is going to be your default directory)
Then, you can manipulate your remote folder as a regular local folder.
Unmount your remote directory
$fusermount -u mountpoint
e.g.
$fusermount -u  /home/user/remote/


[SOURCE]
http://www.debianadmin.com/mount-a-remote-file-system-through-ssh-using-sshfs.html 

GNU Screen Command

[CONTEXT]
Window manager that multiplexes a physical terminal between several processes, typically interactive shells.

[WHEN]
Pair remote programming/assistance. Using the multiuser mode to do pair programming or create a teaching environment.

[HOW]
sudo apt-get install screen

1. Change user to the username you want to allow screen access

2. To start up screen:
  screen -S sessionname

3. Now instruct the second/remote user to SSH connect to your host/IP and to attach to the screen
  screen -x sessionname


Both will be able to interact in the same session.


[REFERENCES]
http://www.gnu.org/software/screen

root with X access

Using Debian Squeeze and others older versions, the root cannot execute X programs from a x-console (like kde-konsole or gnome-terminal).

To allow this just edit your root's .baschrc and add this line

export XAUTHORITY=/home/$SOME_USER/.Xauthority

where  SOME_USER is replaced by a user with X access.