SSH Tunnels

SSH Tunnels and More

SSH is the go to tool for sysadmins and developers for interactive
connections to remote machines. It creates secure, encrypted connections between computers, even across hostile networks. (Unless you accept host keys without verification. DON'T DO THAT!!!).

SSH can also create tunnels for encapsulating other connections, including
other TCP protocols and data. Sysadmins can bridge protocols across networks for ease of access such as a one-off data sync.Devs can present the remote dev database on their desktop to ease use of graphical development tools.

After attending this session, audience members will be able to create a local tunnel from client to server, a remote tunnel from server to client, and do simple analysis of local vs remote evaluation of a command. Attendees will be able to use tunnels for SSH or sample other TCP protocols (MySQL and HTTP), and tunneling via a third party system.
They will also be familiar with dynamic SOCKS proxies and using SSH to tunnel graphical applications. Finally, attendees will also learn SSH configuration and command line tips
for convenience of use, including using forced command to restrict an SSH key to one purpose.

Topics:

Local Tunnels
Remote Tunnels
Tunnels via 3rd-party Hosts
Dynamic SOCKS Proxies
FoxyProxy
X11 Tunneling
Service Tunnel Examples
SSH Forced Command
Configuration Tips
Command Line Tips
Tools That Use SSH
SSH Home Game
Hans is chairman of the Phoenix Linux User Group (PLUG), chair for SeaGL Finance committee, founder of SeaGL Career Expo, BoF organizer for the Southern California Linux Expo (SCaLE) and founder of the Free Software Stammtisch. He presents regularly at large community-led conferences (SeaGL, Penguicon, SCaLE, LCA, FOSSASIA, Tübix, CLT, LFNW, OLF, SELF, GeekBeacon Fest) and many local groups.