Active Directory A Microsoft Windows product based on the LDAP protocol. Designed to store information and provide this data for various purposes, such as user authentication.

active FTP mode In this mode the FTP server initiates the data connection.

Amanda A third-party backup utility.

anonymous FTP An FTP feature where a special account (anonymous or ftp) can be used to connect to an FTP server without the need of a password or access to a local user account.

Apache A common way to refer to the Apache Web Server (formal name: Apache Hypertext Transfer Protocol Server).

ARP Address Resolution Protocol; a protocol that defines how IP addresses are translated into MAC addresses.

ARP table A memory-based table that contains IP addresses ...

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