What protocol does Kerberos use?

Kerberos uses UDP port 88 by default. The protocol was named after the character Kerberos (or Cerberus) from Greek mythology, the ferocious three-headed guard dog of Hades.
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What type of protocol is Kerberos?

Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography. A free implementation of this protocol is available from the Massachusetts Institute of Technology.
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Does Kerberos use TCP or UDP?

Kerberos is primarily a UDP protocol, although it falls back to TCP for large Kerberos tickets. This may require special configuration on firewalls to allow the UDP response from the Kerberos server (KDC). Kerberos clients need to send UDP and TCP packets on port 88 and receive replies from the Kerberos servers.
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Does Kerberos use TLS?

By validating the server certificate, clients can be certain that it is talking to the intended KDC. The Kerberos V5 STARTTLS protocol do not require clients to verify the server certificate. The goal is that support for TLS in Kerberos V5 clients should be as easy to implement and deploy as support for UDP/TCP.
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Is Kerberos an AAA protocol?

Cisco network equipment supports the three primary security server protocols: TACACS+, RADIUS, and Kerberos. TACACS+ and RADIUS are the predominant security server protocols used for AAA with network access servers, routers, and firewalls.
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Kerberos - authentication protocol



What is the difference between SAML and Kerberos?

Kerberos is a lan (enterprise) technology while SAML is Internet. Kerberos requires that the system that requests the ticket (asks for user identity, in a way )is also in the kerberos domain, SAML does not require systems to sign up before.
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Does Kerberos use https?

Kerberos usually uses UDP, SSL uses (most of the time) TCP. SSL authentication is usually done by checking the server's and the client's RSA or ECDSA keys embedded in something called X.
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What is TCP port 750 used for?

There are four Kerberos ports in the /etc/services file: TCP port 88, UDP port 88, TCP port 750, and UDP port 750. These ports are used only for outbound connections from your storage system. Your storage system does not run Kerberos servers or services and does not listen on these ports.
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What port does Kerberos?

Ports 88 and 464 are the standard ports for Kerberos authentication.
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What protocol does SSO use?

Some SSO services use protocols, such as Kerberos, and Security Assertion Markup Language (SAML). SAML is an extensible markup language (XML) standard that facilitates the exchange of user authentication and authorization data across secure domains.
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Is LDAP SAML?

When it comes to their areas of influence, LDAP and SAML SSO are as different as they come. LDAP, of course, is mostly focused toward facilitating on-prem authentication and other server processes. SAML extends user credentials to the cloud and other web applications.
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Is SAML an authentication protocol?

Security Assertion Markup Language (SAML) is an XML-based open-standard that provides authentication between an IdP and a service provider. It is one of the major authentication protocols used today and one of the first to be used for federated access, giving it a large foothold in the SSO domain.
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How does Kerberos authentication works?

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.
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What is Kerberos database?

A Kerberos database contains all of a realm's Kerberos principals, their passwords, and other administrative information about each principal. For the most part, you will use the kdb5_util program to manipulate the Kerberos database as a whole, and the kadmin program to make changes to the entries in the database.
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What is Kerberos SSO?

Kerberos Single Sign On (SSO)

Single Sign On is where a user authenticates once (typically by providing user name and password) and the use of applications and services after this do not require username and password to be provided again. A key feature and benefit of Kerberos is its ability to provide SSO.
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Is TLS and SSL the same?

Transport Layer Security (TLS) is the successor protocol to SSL. TLS is an improved version of SSL. It works in much the same way as the SSL, using encryption to protect the transfer of data and information. The two terms are often used interchangeably in the industry although SSL is still widely used.
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Does SSH use IPsec?

SSH is used for scripting applications, whereas TLS/SSL and IPsec is incorporated into applications and the TCP/IP stack. UDP and ICMP is also a problem with SSH.
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How does Kerberos Version 5 authentication protocol work?

Kerberos provides cryptographic authentication through a combination of secret key and strong encryption. This ensures message integrity and data confidentiality. Think of a secret key as a password shared between the client and the authentication server.
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Can Kerberos and SAML work together?

it does not really work via Kerberos and a SAML based solution is necessary. To use SAML in an Active Directory you will have to have the Active Directory Federation Services (AD FS) role installed on a Server/DC somewhere in your AD.
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Is LDAP same as SSO?

SSO is a method of authentication in which a user has access to many systems with a single login, whereas LDAP is a method of authentication in which the protocol is authenticated by utilizing an application that assists in obtaining information from the server.
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