Security

1. Eavesdropping
   • VNC & X11 data transferred in plain text!
   • SSH tunnels vs IPSEC
     • intermittant vs semi-permanent
     • remote control vs lan
     • IPSEC is harder to set up
   • Examples
     • Tunnel to a VNC server, but use port 5901 on my computer
       
          ssh -L 5901:127.0.0.1:5900 mike@142.161.33.115
       
     • Tunnel to a MySQL server
       
          ssh -L 3306:127.0.0.1:3306 ubergeek@someplace.dyndns.org
       
2. Untrustworthy Computers
   • Public key on USB key
     
3. Rogue Servers : YOU are the risk!