Effective Thursday, June 17th, at 8 am, the login process for accessing Oscar via SSH will require either two-factor authentication (e.g., Duo) or VPN access. This means if you currently login to Oscar using your username and password, you will have the additional two-factor step to complete. Please see below for details.
Reason for change?
- Enhance Oscar security
What’s the impact?
- All existing SSH sessions & SSH Tunnels to ssh.ccv.brown.edu will be terminated at 8 am, June 17th
- VNC sessions will remain unaffected
- No downtime is required
- Your running/pending jobs will not be affected
Technical details
Step 1:
- must run:
ssh-keygen -R "ssh.ccv.brown.edu" - you will be asked for a prompt enter: Yes
- Note: this command is necessary one time only
- Windows users - PuTTY: when PuTTY displays the warning message, click
Yesto update PuTTY’s cache with the new RSA key
Step 2 - two options:
Option A: allows access from the public internet, no VPN required
Command: ssh <username>@ssh.ccv.brown.edu
Details:
- Two-factor authentication (Duo) required
- Brown password required
- Brown VPN not required
Option B: allows for use of ssh keys (no password required), VPN required
Command: ssh <username>@sshvpn.ccv.brown.edu
Details:
- Brown VPN required
- Option to utilize SSH keys (Brown password not required)
- DUO not required
Please follow this guide if you don’t have two-factor authentication (Duo) setup already.
Please follow this guide to set-up SSH key authentication (passwordless ssh). VPN required.
If you have any questions or concerns please reach out to us via support@ccv.brown.edu