Editing SSH (section)

= Troubleshooting =

== Windows ==
=== SSH Connection Errors ===

When attempting to connect to the HPC cluster using Visual Studio Code and SSH, Windows users may encounter the following error:

 Corrupted MAC on input.
 ssh_dispatch_run_fatal: Connection to 128.2.205.73 port 22: message authentication code incorrect

==== Solution ====

To resolve this issue, add the following configuration to your local SSH config file (~/.ssh/config):

Host babel babel-login
    HostName babel.lti.cs.cmu.edu
    Ciphers aes128-ctr,aes192-ctr,aes256-ctr
    MACs hmac-sha2-256,hmac-sha2-512,hmac-sha1
    User <USERNAME>
    ForwardAgent yes

Replace <USERNAME> with your actual username.

If you are using an SSH key, add the following line, replacing the placeholder with your private SSH key's file path:

    IdentityFile C:/Users/<USERNAME>/.ssh/<private_ssh_key_name>