Some of the department's web pages have restricted availability. In general, this policy has been decided by the faculty, computing committee, or people responsible for that particular page, not by csehelp or webmaster.

Restriction by Password
You may need a password to access some pages on our site. This has been set up at the request of the particular page's authors. To set up password protection for a web page you are responsible for, click here.

IP Address Restriction
If a web page is restricted to departmental hosts, it means that the web page can only be viewed by a browser running on a machine on one of the departmental subnets. Your machine at home does not count. The access control is done on a subnet-by-subnet basis, and adding individual home machines would be too time-consuming. Again, this was voted on by the faculty.

Restriction by Unix Group
If a web page is restricted to faculty only, then it is readable only by a member of group faculty. This means that you must run your web browser on a machine where the web page filesystem is actually mounted (/cse/htdocs on any csehelp-supported machine). The http server does not actually deliver the page to the browser as it does with a normal link, but instead instructs the browser to find the page itself on the machine where the browser is running. So, if the web filesystem is not mounted, you will get a "file not found" error.
If you try to access the page on a machine where the filesystem is mounted but are you not in the correct group, the browser will attempt to read the file but will find the file unreadable since the it is only readable by the file's owner or members of the file's group. Once again, this was done at the request of the faculty, or the owner of the particular web page.