Information Technology Services, Brandeis University
Instructions for enabling CoSign protection on web directories:

To protect your web directory with CoSign, the login system used with Brandeis systems such as Webmail and LATTE, add the following lines to a file named .htaccess (beginning with a period) in your web directory:

CosignProtected On
ErrorDocument 503 https://people.brandeis.edu/~UNETID
Where UNETID is your UNET ID.

The code above will limit your page to anyone at Brandeis with a valid account. If you would like to restrict your site to specific users, add the following line to the bottom of the .htaccess file:

require user user1 user2
Where user1 and user2 are the users you want to have access. You can have an unlimited number of users; just append more to the end of the list.