Bot Cyborg

Few days ago I made the following post: Prologue: Our Institute has several nice Dual Core Machines deployed for the students. Unfortunately the machines are behind a NAT with no port forwarded for external SSH access. Student's hostel is a bit far off from the computational centre. As such if someone felt the need of accessing the machines during non-office hours, it was a wee bit difficult. The sysadmin would not have agreed to forward any ports. Something had to be done.... SSH has a very useful feature - Remote and Local Port Forwarding. We have an old rickety PIII running Ubuntu 8.04.1 in the Hostel, it is connected to the net and is accessible via SSH from the internet. Using a tiny little shell script running on one of the machines in the Institute, I managed to make the old PIII an intermediate gateway for gaining SSH access to the Institute's machines from anywhere in the internet. The script is of few lines, but nevertheless powerful enough to serve our purpose. #!/bi...

Prologue: Our Institute has several nice Dual Core Machines deployed for the students. Unfortunately the machines are behind a NAT with no port forwarded for external SSH access. Student's hostel is a bit far off from the computational centre. As such if someone felt the need of accessing the machines during non-office hours, it was a wee bit difficult. The sysadmin would not have agreed to forward any ports. Something had to be done.... SSH has a very useful feature - Remote and Local Port Forwarding. We have an old rickety PIII running Ubuntu 8.04.1 in the Hostel, it is connected to the net and is accessible via SSH from the internet. Using a tiny little shell script running on one of the machines in the Institute, I managed to make the old PIII an intermediate gateway for gaining SSH access to the Institute's machines from anywhere in the internet. The script is of few lines, but nevertheless powerful enough to serve our purpose. #!/bin/bash while [ 1 ]; do ssh -C -o Server...