Programming - General

What types of access restrictions are available for Protecting Confidential Documents at Your Site?
There are three types of access restriction available:
  1. Restriction by IP address, subnet, or domain: Individual documents or whole directories are protected in such a way that only browsers connecting from certain IP (Internet) addresses, IP subnets, or domains can access them.
  2. Restriction by user name and password: Documents or directories are protected so that the remote user has to provide a name and password in order to get access.
  3. Encryption using public key cryptography: Both the request for the document and the document itself are encrypted in such a way that the text cannot be read by anyone but the intended recipient. Public key cryptography can also be used for reliable user verification. See below


Further Reading
Creating Password Protected directories in