Can’t Log in to (Connection Times Out or is Refused)


Websites hosted by ITS Web Hosting in AFS.


People cannot log in to using SSH or SFTP.  They receive a "connection refused, "connection timed out", "unable to connect to server", or similar error message.


At 7:30 am April 4, 2023, was permanently shut down.

  • Solution 1: Log in to instead. supports both SSH and SFTP and is accessible from everywhere in the world, but it requires Duo for most connections, which may not work with all SFTP clients. For a list of SFTP clients that will work with, refer to Can’t Log In to (SFTP Client Errors or Problems With Duo).
  • Solution 2: Use SFTP to log into from on-campus or the VPN. does not require Duo and should work with all SFTP clients, but it supports only SFTP (not SSH). Note: is different than does require Duo.
  • Solution 3: Refer to Set up CI/CD or Other Automatic Updates Without Duo for AFS-Based Websites for how to set up a special sponsored uniqname that can be used worldwide with both SSH and SFTP and without Duo for automating updates to AFS-based websites. 

Additional Information

Connecting to SFTP:  Any connection using SFTP protocol will require an on campus connection, or the use of the U-M VPN. was a Red Hat Enterprise Linux 6 server.  Its replacement,, is a Red Hat Enterprise Linux 8 server that supports newer website development software tools.

For further assistance with web hosting, contact

Need additional information or assistance? Contact the ITS Service Center.


Article ID: 9864
Wed 3/15/23 8:40 PM
Tue 9/5/23 11:14 AM

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People cannot log in to via SFTP despite having an AFS home directory and using the correct username and password, but they are able to log in using SSH. The SFTP client they are using may not support keyboard-interactive authentication, which is required for Duo. Switch to another SFTP client instead (such as Cyberduck) or use the SFTP server from a university network or the U-M VPN.
Procedure to set up automatic updates of AFS-based websites using CI/CD (including GitHub Actions) or other mechanisms without needing to use Duo for multifactor authentication.