Logging in

Where

All users should log into the machine "splogin.essc.psu.edu". You can transfer files and data, compile, debug, and submit jobs from this machine. Please do not log in to any other machines on the SP, even if you have the proper permissions.

How

splogin only accepts logins using ssh. We do not accept logins via telnet or rlogin, since these protocols send your password in the clear. This would jeapordize the security of everyone's resources and data.

Changing your password

The SP currently uses a mixture of standard UNIX authentication and kerberosIV authentication. We are currently working on moving to DCE to authentication which will simplify matters immensely. Until then, changing your password requires an extra step.

To change your password on the SP:

Use the command "passwd" to change your standard unix password, the same as most unix machines. You will be prompted for your old password and your new one.
Your jobs will require kerberos authentication if they use rsh or MPI, so you also need to change your kerberos password (which is set to the same as your unix password when you receive your account). Use the command "kpasswd" to change your kerberos password. You will want to run "kinit" every couple weeks or so to update your credentials.

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