Full Answer
Which protocol is used for centralized authentication and authorization with remote access?
Which of the following are methods for providing centralized authentication, authorization, and accounting for remote access? (Select two.) Both RADIUS and TACACS+ are protocols used for centralized authentication, authorization, and accounting with remote access.
What are the different types of remote access authentication?
Remote access authentication options. Remote access servers can be configured as dial-in servers or VPN servers. Dial-in servers use the Point-to-Point Protocol (PPP) or in the case of some older servers, the Serial Line Internet Protocol (SLIP) as the link layer protocol.
What is the RFC for RADIUS authentication?
RADIUS is defined in RFCs 2865 and 2866. RADIUS is supported by dial-in remote access servers, VPN servers, and wireless access points (WAPs). In addition to the authentication protocols listed above, RADIUS supports Protected EAP (PEAP) for wireless access. Microsoft's implementation of RADIUS is the Internet Authentication Service (IAS).
What is RADIUS (Remote Authentication Dial-in user service)?
Remote Authentication Dial-In User Service (RADIUS) is primarily used for authenticating remote clients before access to a network is granted. RADIUS is based on RFC 2865 and maintains client profiles in a centralized database. RADIUS offloads the authentication burden for dial-in users from the normal authentication of local network clients.
Which is used to provide a centralized authentication method from remote locations?
Remote Authentication Dial-In User Service (RADIUS) is a networking protocol that provides centralized authentication, authorization, and accounting (AAA) management for users who connect and use a network service.
Which server can act as a centralized authentication server in your network?
Network Policy Server (NPS)Network Policy Server (NPS) is Microsoft's implementation of a Remote Authentication Dial-In User Service (RADIUS) server. NPS provides centralized authentication, authorization, and accounting (AAA) capabilities to your network.
What is the difference between RADIUS and TACACS+ quizlet?
What is a difference between RADIUS and TACACS+? RADIUS combines authentication into a single function; TACACS+ allows the services to be split over different servers.
What are the differences between TACACS+ and RADIUS?
RADIUS was designed to authenticate and log remote network users, while TACACS+ is most commonly used for administrator access to network devices like routers and switches.
What are the centralized authentication process?
With single sign-on (SSO), users are authenticated only once, regardless of how many servers or services they attempt to access after the initial logon. Essentially, the network remembers users' logon credentials and uses them whenever users attempt to access a resource.
What is KDC authentication?
Kerberos uses symmetric key cryptography and a key distribution center (KDC) to authenticate and verify user identities. A KDC involves three aspects: A ticket-granting server (TGS) that connects the user with the service server (SS) A Kerberos database that stores the password and identification of all verified users.
Which ports does LDAP use by default?
The standard port for SSL-based LDAP (LDAPS) communication is 636, although other ports can be used, such as the default 1636 when running as a regular user.
What is the purpose of RADIUS?
RADIUS (Remote Authentication Dial-In User Service) is a client-server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users and authorize their access to the requested system or service.
What is the difference between RADIUS servers and TACACS+ servers choose all that apply?
- RADIUS encrypts the entire packet contents; TACACS+ only encrypts the password. RADIUS combines authenticaiton and authorization into a single function; TACACS+ allows these services to be split between different servers.
Is TACACS+ more secure than RADIUS?
As TACACS+ uses TCP therefore more reliable than RADIUS. TACACS+ provides more control over the authorization of commands while in RADIUS, no external authorization of commands is supported. All the AAA packets are encrypted in TACACS+ while only the passwords are encrypted in RADIUS i.e more secure.
What is RADIUS vs Kerberos?
Difference between Kerberos and RADIUS :S.No.KerberosRADIUS5.Kerberos bundles high security and mutual authentication.RADIUS provides authentication by RADIUS client also called NAS.6.It provides authentication in multi-tier applications.It provides authentication in multi-tier applications.4 more rows•Dec 15, 2020
What is the difference between LDAP and RADIUS?
LDAP uses Transmission Control Protocol (TCP) in order to ensure reliable connection across the network. TCP ensures a connection, but does require more network overhead. RADIUS uses User Datagram Protocol (UDP), which minimizes network overhead but does not ensure a connection.
What does remote access server use for authorization?
response authentication protocol. It uses the Message Digest 5 (MD5) algorithm to hash the response to a challenge that the remote access server issues. CHAP is used by various vendors of dial-in servers and client computers, including Macintosh and UNIX.
What is a CAS provider?
Central Authentication Service (CAS) is the most common centralized web authentication Single Sign On (SSO) protocol for intra-organization authentication.
What is a local authentication?
"Local Authentication" means that instead of using an external login service such as "Login by Google", "Login by Facebook", etc, you can have the users just create accounts on the stack using their email address and a password of their choosing, without sending them out for (Oauth) logging in to another site.
Which of the following cellular network types use MIMO?
Both HSPA+ and LTE are 3G extensions that use multiple-input and multiple output(MIMO) to increased bandwidth.
What is centralized management?
Centralization or centralized management in IT terms is when critical decisions and policies are enforced by a few top leaders within the organization from a single point of control.
The need for centralized, secure remote access
Today’s complex and heterogeneous corporate environments require security heads to manage and govern access to a growing inventory of remote servers, computers, and other IT assets. However, relying on multiple legacy remote access tools is inefficient and presents huge security risks.
A single point of control
Access Manager Plus facilitates centralized administration of distributed remote IT assets through a web-based solution.
Discover, add, and organize remote connections
Scan networks and automatically discover flavors of Windows and Linux systems, along with their associated privileged accounts, and add them as remote connections in Access Manager Plus.
Establish central control on access pathways
Do away with multiple remote access tools, and enable VPN-less connections to remote servers and systems through secure RDP, SSH, SQL, and VNC pathways.
What is remote access server?
Remote access servers can be configured as dial-in servers or VPN servers. Dial-in servers use the Point-to-Point Protocol (PPP) or in the case of some older servers, the Serial Line Internet Protocol (SLIP) as the link layer protocol. VPN servers can use the Point-to-Point Tunneling Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP), or IPSec tunnel mode to establish a secure "tunnel" over the Internet. Windows remote access servers support the following set of authentication methods: 1 Password Authentication Protocol (PAP) 2 Challenge Handshake Authentication Protocol (CHAP) 3 Microsoft's implementation of CHAP (MS-CHAP) 4 Updated version of MS-CHAP (MS-CHAP2) 5 Extensible Authentication Protocol/Transport Layer Security (EAP/TLS)
What is a RADIUS authorization?
Authorization refers to granting specific services to users based on their authenticated identity; restrictions can be imposed on certain users. Accounting refers to tracking the use of the network by users and can be done for billing, management, or security purposes. RADIUS is defined in RFCs 2865 and 2866.
What is EAP TLS?
EAP/TLS provides for use of more secure authentication methods such as smart cards, Kerberos, and digital certificates, which are much more secure than the user name/password authentication methods above. It's defined in RFC 2716.
What does authenticator do?
The authenticator also calculates the hash value and compares the client's response with its own calculation. If the values match, the connection is established.
Is MS-CHAP v2 secure?
Version 2 adds such features as mutual (two-way) authentication of both client and server, as well as stronger encryption keys. MS-CHAP v2 is more secure than CHAP for Windows systems.
Can you have multiple remote access servers on Windows 2003?
Windows 2003 Server Enterprise Edition's IAS implementation puts no limits on the number of RADIUS clients you can configure or on the number of RADIUS server groups you can have. Even more importantly, a single RADIUS server can support many remote access servers, so that as you add additional dial-in and/or VPN servers, their users are all still authenticated through one central point: the RADIUS server. The fact that the authentication server is separate from the access server (s) makes this both more secure and more scalable than other authentication methods.
