As part of Caltech's ongoing efforts to enhance system security and reduce exposure to external threats, IMSS will implement a change to the access policy for the campus interactive SSH server.
Effective Tuesday, September 23, access to the SSH server is restricted to:
- Devices connected to on-campus networks
- Users connected via the official campus VPN
Why this change?
Restricting access to trusted IP ranges significantly reduces the server's external attack surface. By limiting exposure to only internal and VPN-authenticated traffic, we minimize potential vectors for unauthorized access and exploitation, thereby strengthening the overall security posture of our infrastructure.
We appreciate your cooperation and understanding as we continue to improve the security of our systems.
If you have any questions or need assistance configuring VPN access, please contact the Help Desk (626-395-3500, [email protected], https://help.caltech.edu).