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Web Services

Restricting access to web pages

Web pages are normally available to anybody. However, access to web pages can be restricted by requiring a username and password.  The username can be:

  • Any K-State eID
  • A list of K-State eIDs
  • A shared ID unrelated to a K-State eID

All methods share some features:

  • It is best to collect restricted pages into a single directory that contains just restricted pages. Restrictions will apply to all files and subdirectories in the restricted folder.
  • Restrictions are controlled by a file called .htaccess that is placed in the directory to be protected.  The format of the .htaccess file is very specific; be careful when editing this file.

Restricting access to any K-State eID

Place the following lines in the .htaccess file.

   AuthType CAS
Require valid-user
Note

Restricting access to people with a K-State eID and password is not the same as restricting access to K-State students and employees. Anybody can register for a K-State eID.

Restricting access to a list of K-State eIDs

Place the following lines in the .htaccess file.

   AuthType CAS
Require userlist

Where userlist is a blank-delimited list of K-State eIDs that are allowed access. Any number of eIDs may appear on the line. If required, additional Require directives can be used.

Restricting access with a shared ID

For situations where security is not critical and non-K-Staters may be allowed access, a username and password may be used that is unrelated to a K-State eID.  The username and password must be distributed via email or other means.

Place the following lines in the .htaccess file.

   AuthType Basic
AuthName "Password Protected Area"
AuthUserFile /usr/local/data/www/path-to-site/userlist.txt
Require valid-user

Where path-to-site is the path to the site's files on the web server. For sites on www.k-state.edu, this is just the pathname portion of the URL, down to the directory being protected. For example, if www.k-state.edu/dept/secure/ is being protected, path-to-site is dept/secure.

For other sites, contact webservices@k-state.edu.

The actual username and password are specified in a file named userlist.txt. To determine the contents of that file, a variety of online password encryption facilities are available, such as http://www.htaccesstools.com/htpasswd-generator/.