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Tips for Using Your CAE Network Account

Receiving email, setting up web pages, and other items. In all instructions below, replace USERNAME with your actual CAE Lab username.

First, Do You Have An Account?

As of fall semester 2009, all students enrolled in courses in the College of Engineering (ENGR, CEE, CHE, ECE, ISE, ME, MIT) have CAE network accounts. Students enrolled in graduate courses have additional access to file server storage and high performance computing services, as do faculty and staff. To see if you have an account already, or to sign up for one if you don't already have an account, see our account procedure.

Next, Setting Your Password

If you've just gotten a new CAE network account, you need to set a password for it before you can do anything else with it (access the file server, Unix or Windows systems, etc.) Either take your student ID card with you to Clement Hall 405 during normal open lab hours, and sign in with the helpdesk worker there. When you go to one of the Windows systems in Clement Hall 405, you'll sign in with your normal university username, but your password will initially be set to your T number (with a capital T and eight digits total, including leading zeros). Use that as your initial password, and then you can reset your password to something else. You may want to set your password to be the same as what you use in the ITS PC labs around campus.

Lab hours for CH405 for fall semester 2014 are:

  • Sunday: 2:00 PM - 12:00 AM
  • Monday-Thursday: 12:00 PM - 12:00 AM
  • Friday: 10:00 AM - 5:00 PM

Faculty and staff, contact Joel Seber (Clement Hall 301, x3734) or Mike Renfro (Clement Hall 314, x3601) for setting up your account.

After setting your password the first time in CH405, users can change their passwords remotely by:

mwr@ch208a:~$ kpasswd mwr
Password for mwr@CAE.TNTECH.EDU:
Enter new password: :
Enter it again: :
Password changed.

First, type kpasswd followed by your username. At the first password prompt, enter your current CAE password. At the second and third password prompt, enter the new password you want to use. None of the password prompts will echo back any characters as you type them, unlike password prompts on a Windows system. If you entered the correct current password, and typed the same new password at each of the other prompts, your password will have changed immediately everywhere on the network.

Setting Up Public Web Pages

Every graduate student, faculty, or staff member with a CAE account has an area in their account for making selected material web-accessible. Follow the instructions below that apply to the operating system you use, and then see the last section to find out the address for your web pages.

Unix Users

Copy any files or directories you want to be web-accessible into the 'public_html' directory in your home directory. For example:

mwr@ch208a:~$ cp weighthist.m ~/public_html

or

mwr@ch208a:~$ ls wxp*
wxp.cpp  wxp.h  wxp.wdr
mwr@ch208a:~$ cp wxp* ~/public_html

After copying the files there, make sure you set the permissions on them so that the files are readable by all users, for example:

mwr@ch208a:~$ chmod 755 ~/public_html/weighthist.m

or

mwr@ch208a:~$ chmod 755 ~/public_html/wxp*

In case you forget this last step, the new files in your web space won't be accessible to outside users, but a scheduled task on the web server will automatically reset your website permissions to their proper settings.

Windows NT, 2000, XP Users

Click the Start button, then the Run menu. On the Run dialog box, type in '\\www.cae.tntech.edu\webpages'.

 

 

Click the OK button on the Run dialog. If your username and/or password on the local Windows system are different than the ones you use in the CAE Lab, you will be prompted for your CAE Lab username and password before gaining access to the files. Otherwise, a folder window similar to the following will be shown.

 

Any files you copy into this folder will immediately and automatically be available on the web. For example, after copying some MATLAB and C++ files into this folder, the Explorer window looks like:

 

 

Your Web Pages' URL

Your web pages can be viewed in any web browser at the address http://www.cae.tntech.edu/~USERNAME/ , where USERNAME is your CAE network username:

 

 

Your "Private" Web Space

 

If you need to make large or frequently-changing files available to other people (thesis committee members, coworkers collaborating on your research, etc.) but don't want to make them available to the world, you have a "private" web directory for that purpose. Before placing anything in the private directory, make sure you understand the following:

  • This "private" web space is no more secure than an email message. That is, just like a sensitive file you email to a coworker can be forwarded to others that you might not intend to have access, when you give a coworker the URL to access files in your private web space, there is no way to prevent them from giving that address to others.

  • There are no usernames or passwords assigned to this web space for the purposes of reading files stored there. You are the only one who can upload files to it, modify files in it, or delete files in it, but anyone in the world who is given the URL to files in your private web space can read them without restriction.

  • The best use of this "private" web space is to place files that you're not comfortable storing in your public web space, but are comfortable sending to other people by email. If you send someone a link to a large document or file in your private web space, you can easily get around restrictions that many insitutions put in place regarding email sizes, avoid exceeding any email or disk quotas for your recipient, etc.

Windows Users

If you navigate into the private folder in the top of your webpages directory, you'll find that it looks like any other folder. Copy files there just as you would your private web space.

Unix Users

Use the basic procedures listed above for your public web space, but make sure to place files in the private directory instead of the top-level one. For example:

mwr@ch208a:~$ cp thinfeature.jpg ~/public_html/private
mwr@ch208a:~$ chmod 755 ~/public_html/private/thinfeature.jpg

Your "Private" Web Pages' URL

The files you place in your private directory will be accessible under a URL similar to: http://www.cae.tntech.edu/~USERNAME/private/ , followed by the rest of the filename or path of items that you placed in the private directory. However, noone will be able to browse around the top-level private directory looking for files:

But if you give someone the URL for a file or folder that you put in the private directory, they can access the file easily: