Microsoft Internet Security and Acceleration Server 2000


Snap-ins collected into a unit for shipment by a software vendor.
package definition file (PDF)
A file used by Microsoft Systems Management Server for automatic installation of client software. The PDF can also be used for automatic uninstallation of client software for 32-bit Windows-based clients.
passive caching
In this type of service, data is cached and discarded entirely on the basis of object size, popularity, or time since the requested object was last updated in the cache. Frequently referred to as on-demand caching because all caching updates are user-initiated. See also active caching.
password authentication
See authentication.
See primary domain controller.
See package definition file (PDF).
Peer Web Services
A collection of services that enable a computer running Windows NT Workstation/Windows 2000 Professional to publish a personal Web site from the desktop. These services include WWW, FTP, and Gopher services.
phonebook entry
Used to dial the access number of an Internet service provider (ISP) by using Remote Access Service (RAS) from the Autodial service.
A TCP/IP utility that verifies connections to one or more remote computers by sending ICMP packets and listening for reply packets.
Third-party applications that are installed to extend and enhance the functionality of ISA.
Point-to-Point Protocol (PPP)
In contrast to SLIP, this more recently established Internet communications protocol standardizes dial-up networking that uses analog modem hardware and standard telephone lines. Although PPP is a well-standardized protocol, vendor implementations of PPP service can vary significantly.
Point-to-Point Tunneling Protocol (PPTP)
A newer networking protocol that enables remote users to access corporate networks securely across the Internet by dialing into an Internet service provider (ISP) or by connecting directly to the Internet. PPTP supports multiprotocol virtual private networks (VPNs). Because PPTP allows multiprotocol encapsulation, users can send any packet type over an IP network.
A measure of the frequency with which objects or URLs are requested by client applications, such as Web browsers. See also cache.
port number
A number that identifies a certain Internet application with a specific connection. Ports are used in TCP to name the ends of logical connections that carry long-term conversations. See also well-known port number.
Post Office Protocol (POP)
A network protocol that permits a client computer to access e-mail on a server. Usually, this means that a POP3 server is used to allow a client computer to retrieve mail that an SMTP server is holding for it.
primary domain controller (PDC)
A server assigned to authenticate logons and maintain the security policy for a Windows 2000 domain. This server stores the master database of all domain-assigned security data for users and must be updated when changes in security are made. See also backup domain controller (BDC), member server.
Software that allows computers to communicate over a network. The Internet protocol is TCP/IP.
A software program that connects a user to a remote destination through an intermediary gateway.
proxy client
A client computer that must use a proxy server to gain access to network services not directly supported for client usage.
proxy server
A computer that acts as a relay between remote servers and clients to intercept requests and process communications on behalf of proxy clients.
The process that allows computers remote from an ISA computer to publish to the Internet. Publishing includes reverse hosting and secure Web publishing.