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What Authentication Protocols does Linux Use?

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Hey all,

I was just wondering, as Microsoft Windows does use authentication protocols like NTLM and Kerberos.

What authentication protocols does Linux use? I know that may depend (or not) on the distro, but I am not really sure.

What I do know is that Linux uses PAM to “plug” or “unplug” authentication modules. What I have only done in the past is to configure this file for OpenLDAP.

Thank you in advance!

Topic

Sorry but I can’t possible list them all.

In reply to What Authentication Protocols does Linux Use?

As to PAM, not all distros use that. Until we narrow down the question to say networking for files or maybe an IP stack the answer is all of them.

Reply To: What Authentication Protocols does Linux Use?

In reply to What Authentication Protocols does Linux Use?

Hi,
OpenSSL which use ssh protocol key based.
PAM is another use user name and password.
LDAP is another like AD concept.

[Itz Zohaib]

Reply To: What Authentication Protocols does Linux Use?

In reply to What Authentication Protocols does Linux Use?

Pluggable Authentication Modules (PAM): PAM provides a flexible framework for authentication on Linux systems. It supports many authentication methods, such as passwords, tokens, smart cards, and biometrics.

OpenSSH: Linux uses OpenSSH, which implements the Secure Shell (SSH) protocol for secure remote login and file transfer. It provides passwords, public key cryptography, and other authentication methods.

Kerberos: Kerberos is a network authentication protocol that Linux systems can use for centralized authentication and secure communication. It enables secure authentication between clients and servers by issuing and validating tickets.
LDAP (Lightweight Directory Access Protocol): LDAP is a protocol for accessing and managing directory information. Linux systems can use LDAP for centralized user authentication and authorization by connecting to an LDAP server that stores user account information.

Samba: Samba is an open-source software suite enabling interoperability between Linux/Unix and Windows-based systems. It provides authentication services for Linux systems by integrating with Windows authentication protocols like NTLM and Active Directory.

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• This reply was modified 1 year, 3 months ago by Itz Zohaib.
• This reply was modified 1 year, 3 months ago by birdmantd.

Reply To: What Authentication Protocols does Linux Use?

In reply to What Authentication Protocols does Linux Use?

Hello,

Linux typically uses several authentication protocols, including PAM (Pluggable Authentication Modules), which as you mentioned, allows flexibility in authentication methods. Additionally, Linux systems often use protocols like LDAP (Lightweight Directory Access Protocol) for centralized authentication, and for local authentication, they utilize mechanisms like shadow passwords, which are more secure versions of traditional password storage. The specific protocols and methods can vary based on the distribution and configuration, providing a range of options for secure authentication.

Hope this helps!

[indicatorstockmarket]

Reply To: What Authentication Protocols does Linux Use?

In reply to What Authentication Protocols does Linux Use?

Linux primarily uses PAM (Pluggable Authentication Modules) to manage authentication, and the specific authentication protocols can vary depending on the configuration and distro. Common protocols include LDAP, Kerberos, and more.

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• This reply was modified 11 months, 3 weeks ago by indicatorstockmarket.
• This reply was modified 11 months, 3 weeks ago by kees_b.

What Authentication Protocols does Linux Use?

In reply to What Authentication Protocols does Linux Use?

Linux supports a variety of authentication protocols and mechanisms, including password-based authentication, SSH key-based authentication, Kerberos, LDAP, RADIUS, OAuth, 2FA/MFA, smart cards, PAM, and SAML. These methods provide different levels of security and can be configured to meet specific authentication needs on Linux systems. The choice of authentication method depends on system requirements and administrator preferences.

[indicatorstockmarket]

Reply To: What Authentication Protocols does Linux Use?

In reply to What Authentication Protocols does Linux Use?

Linux primarily uses PAM (Pluggable Authentication Modules) for authentication. The specific authentication protocols can vary depending on the configuration and use case, but PAM allows you to integrate various authentication methods, including traditional password-based, LDAP, and more. It’s a flexible system that adapts to different needs.

• This reply was modified 11 months, 3 weeks ago by indicatorstockmarket.
• This reply was modified 11 months, 3 weeks ago by kees_b.

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