L Flashcards
L2TP
Layer 2 Tunneling Protocol
An extension of PPTP.
A VPN protocol that creates a connection between your device and a VPN server without encrypting your content. Due to its lack of encryption and authentication, L2TP is usually paired with Internet Protocol Security (IPsec) protocol.
LAN
Local Area Network
A collection of devices connected together in one physical location, such as a building, office, or home. These devices usually share a centralized internet connection.
LDAP
Lightweight Directory Access Protocol
An open-source application protocol that allows applications to access and authenticate specific user information across directory services.
It is the language that Microsoft AD understands.
A protocol that helps users find data about organizations, persons, and more. LDAP has two main goals: to store data in the LDAP directory and authenticate users to access the directory.
To understand the value of LDAP, consider the vast amounts of data required just for daily administrative tasks.
Employees need to regularly access usernames, passwords, email addresses, endpoints, and printers to fulfill their daily tasks.
Such information is stored on company directories and LDAP is the protocol that efficiently connects users and applications to this information.
Because LDAP maps to usernames and passwords, the protocol can also be used to authenticate users. This allows single sign-on (SSO), where users need to only sign in once to access all protected files and applications.
LEAP
Lightweight Extensible Authentication Protocol
A proprietary wireless LAN (Local Area Network) authentication method developed by Cisco Systems.
It supports strong mutual authentication between the client and a RADIUS server, with a logon password as the shared secret. It provides dynamic per-user, per-session encryption keys.
Because LEAP is a password-based algorithm, it is CRITICAL that the passwords used are very strong and difficult to guess.
