www.clubs.psu.edu | ORGS | LINKS | SPECS | NEWS | Contact us
AUTHOR | Site Map | ADMIN

General | Tutorials | CGI | DFS info | Upgrade info
General | Important Changes | Using the backup server | Advanced DFS Notes

This page is out of date

The Student Activity Server has been renamed to the Penn State Student Organizations Web Service and is under new management. These Web pages are out of date and will be removed in the near future. Please read http://www.clubs.psu.edu/info/ for information about the new service.

Information on DFS - Our new file service

To improve our service, we are using a new system which uses your Access Account to authenticate you for updating your web page. See the benefits below.

What is new?

With the migration to DFS, we are now a far cry from the single box webserver we started as in 1996. Your web files are now stored on file servers managed by the CAC, and the Student Activity Server (www.clubs.psu.edu) is simply a web portal of these files from DFS to the web. Since DFS allows us to access it from a multitude of ways, webmasters can use a DFS client on their computer, as well as ftp their files. CAC is testing a product called DFSconnect and another based on Samba that will allow a UNIX machine to act as a DFS proxy for Windows 95 and Macintosh machines. Read more on their DFS-overview page.

Benefits

Your group's files are stored in the Distributed File System managed by the Center for Academic Computing. This provides several benefits that were previously not available:

What is different about DFS?

There are a few subtle yet important details you need to know about when web authoring on the clubs server now with DFS.

Transferring Files to Your Website

Visit our tutorials for using Secure FTP, and other upload methods.

Transferring Files to Your Website via Unix Secure Copy (SCP)

You may utilize the Unix Secure Shell (SSH) Secure Copy command to copy files to the CAC Unix cluster if you have an account on that system. To do so (using splogin.cac.psu.edu as an example):

Method one: local scp

  1. Log into a local system that has scp1 (scp from ssh version 1) and your files to upload.
  2. localsystem$ scp1 localfile xxx111@splogin.cac.psu.edu:/.../dce.psu.edu/fs/services/www/clubs/wwwroot/yourclubdir
  3. You will no longer need to log into the CAC Unix cluster for each upload. But you still can to perform live updates on the html files using a Unix text editor.
  4. Refer to dfs-notes.html for instructions on how use DFS in Unix. NOTE: SAS Groups usually don't have control access.
New (5-3-2000): The CAC has syncronized normal login authentication to the CAC Unix cluster (ssh, telnet, scp, etc) with Kerberos 5 (DCE). So now you can upload directly into DFS with scp as shown above. You also no longer need to perform dce_login to obtain DCE credentials. Type klist just after loging into a CAC Unix system to verify.

Method two: scp from ptph

  1. Log into the ptph cluster.
  2. You no longer need to type: ptph$ dce_login Use your userid (xxx111) as the principle.
  3. ptph$ cd /:/services/www/clubs/wwwroot/yourclubdir (replace yourclubdir with your club's directory name)
  4. ptph$ scp your-local-system-username@your-local-system:path/to/your/web/files.html .(please notice the dot indicating local directory)
Notice: The /clubs/ symbolic link resides only on the DFS Secure-FTP server (ftp.clubs.psu.edu aka ftp.personal.psu.edu aka lutz.cac.psu.edu), not within the CAC Unix cluster. You may wish to create your own symbolic links.

Last modified Thursday, 27-Mar-2003 12:40:12 EST. Student Activity Server Committee





























[This space intentionally left blank]