== How to log in to mire without typing your password

Zeroth, you must have openssh client 4.3 or later.  Other versions may work, but we make no guarantees.

First, you must make sure that your krb5.conf (or, on MacOS, your edu.mit.Kerberos file) is sane.  All you need to do is make sure that there are NOT entries in there which disable the dns_lookup_kdc or dns_lookup_realm options (unfortunately I think Fedora ships with these crippled).  If you don't see those options in the file, you're fine.

Then, you must obtain kerberos tickets.  If your username is "fred", you would do this by typing

   kinit fred@HCOOP.NET

Then type your password.

Next, make sure you have your tickets.  To do this, type

   klist

You should see your tickets and their expiration dates.

Last, depending on what version of ssh you have, type

   ssh -o 'GSSAPIAuthentication yes' -o 'GSSAPIDelegateCredentials yes' mire.hcoop.net

If that doesn't work, add "-vvv" to the command line and copy and paste the ENTIRE output into an email to hcoop-discuss and we'll tell you what's up.

If you do this a lot, you can include the GSSAPIAuthentication and GSSAPIDelegateCredentials options in your .ssh/config file.  But you should NOT turn on GSSAPIDelegateCredentials for arbitrary hosts (make sure you only enable it for HCOOP hosts).