Tunnel4J project is a little utility for people who need to access resources behind firewalls via ssh connections.
Consider it as a light replacement of just some features of a VPN. You can do exactly the same things with the command line ssh client; tunnel4j just exposes a nicer(???) GUI, and being founded on Jsch ,an all-java ssh solution, you can use it on all java-supporting platforms.
When I work from home, this is my scenario:
1) I need to mount some remote directories from my office PC
2) I need to access some Postgres and Mysql dbs
3) I need to access some intranet web applications not visible from outside of my office LAN.
All of this resources are behind a firewall in different locations. I could set up some VPNs from home to the different locations involved but I don't need all the power of a VPN, so I just launch Tunnel4J, open a connection to the endpoint firewalls and setup some local ports for my needs.
Unpack the downloaded file, cd into tunnel4j directory and type:
java -cp jsch.jar:Tunnel4J.jar org.beanizer.tunnel4j.Tunnel4J
· Java 1.4.2 or later
What's New in This Release:
· This release makes use of version 0.1.30 of Jsch.
· Keep-alive messages are used to avoid session timeout.
· Session logs are written in $user_home/.tunnel4j/tunnel4j.log.