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    Andes and Polaris Environments

    Details

    To connect to andes.dartmouth.edu (You need an ssh-client):

    ssh [email protected]

    To connect to polaris.dartmouth.edu (You need an ssh-client):

    ssh use[email protected]

    RStor - Central Data Storage for Researchers

    Details

    RStor is Research Computing's data storage offering. It is available to anyone in the Dartmouth community. RStor is based on the OpenAFS distributed filesystem which provides secure network file storage at relatively low cost. RStor is frequently used to share files across the Internet because it has strong authentication and flexible access control. This can be especially useful to researchers when they either need off campus access themselves or the ability to share data with non-Dartmouth collaborators.

    How Do I Store Research Data Or Files?

    Details

    Where Do I Store My Data?

    Researchers have access to RStor for data storage. See RStor - Central Data Storage for Researchers.

    How Do I Restore My Research Data or Files from RStor?

    To restore your data or files, email [email protected].

    Using klog to Obtain AFS Credentials

    Details

    Even if a Linux system is not set up with usernames or UIDs matching the AFS user database, you can still use all the features of AFS.

    Integrating AFS Authentication with Local Login

    Details

    The explicit klog step can be omitted if the system is configured to obtain AFS credentials as part of the standard login process. To do this, the usernames on your local system must match the usernames defined in the AFS user databases.

    Using AFS Home Directories

    Details

    If usernames and UIDs are in sync with AFS, and integrated logins have been enabled via PAM, you may choose to use your AFS home directory as your home directory on the local Linux system.

    • To do this, edit your entry in /etc/passwd and change the last (":"-delimited) field to the full path of your AFS home.

    e.g. If your local home is:

    /home/joeuser

    you might change that to:

    Hardware Resources for Researchers

    Details

    Researchers at Dartmouth have access to High Performance Computing (HPC) resources including the Discovery cluster and Linux computer servers with licensed mathematics and statistical applications, compliers, debuggers and scientific libraries. Research Computing provides data storage for researchers and Linux support for private research workstations.

    Web Options for UNIX and AFS Users

    Details

    The Web server running on www.dartmouth.edu cannot serve pages directly from AFS. Another system, caligari.dartmouth.edu, runs a Web server that can directly serve pages out of a user's account.

    Below are two options for people who want to have web pages, but keep them in AFS and maintain them directly from their AFS account.

    Understanding Access Control in AFS

    Details

    In AFS, access control is applied at the directory level. The same permissions apply to all the files that directory contains. The Access Control List (ACL) is a list of users and/or groups, with the permissions that apply to each. The ACL for any directory may be displayed with the fs listacl command line tool on all AFS clients, and may also be displayed by the Explorer shell AFS plugin on Windows (right-click menu).

    Example fs listacl output:

    Differences Between AFS and Native UNIX/Macintosh/Windows File Systems

    Details

    Most users will only notice small differences between AFS home directories and standard UNIX home directories, but there are differences some users will encounter on a daily basis. The table below highlights the major differences users are likely to notice when using AFS.

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