Which Authentication Protocols Does Linux Use?

[Ammy]

Can someone explain which authentication protocols Linux uses? I want to understand the common methods Linux systems rely on for user verification and security. If you know the main protocols and how they work, please share your insights

 

[Daryl_Dixon]

Linux commonly uses authentication protocols like PAM (Pluggable Authentication Modules), Kerberos, LDAP, and sometimes RADIUS for network services. The exact protocol depends on the system setup and environment.

 

[alinajoseph]

Linux uses multiple authentication protocols to ensure secure access. Commonly, it employs PAM (Pluggable Authentication Modules) for flexible authentication, along with LDAP, Kerberos, and RADIUS for centralized identity management. SSH with public key authentication is also widely used for secure remote logins in Linux environments.

 

[Maria]

Linux uses authentication protocols like PAM (Pluggable Authentication Modules), Kerberos, LDAP, and RADIUS to manage user logins, permissions, and secure access across systems.

 

[Horbay]

Linux mostly uses PAM (Pluggable Authentication Modules), Kerberos, LDAP and local password hashing for authentication. These ensure secure login and user verification. Due to flexible protocols, Linux is trusted in multi-user and server environments.

 

[Barack Obama]

Linux commonly uses authentication protocols like Pluggable Authentication Modules (PAM), Lightweight Directory Access Protocol (LDAP), Kerberos, and RADIUS. These protocols ensure secure user verification, centralized authentication management, and integration with enterprise systems for robust access control and identity management.

 

[James Bond]

Linux uses several authentication protocols to manage security and access:

• PAM (Pluggable Authentication Modules) – framework for login and app authentication.
• Kerberos – secure, ticket-based network authentication.
• LDAP – directory-based authentication for centralized users.
• RADIUS & TACACS+ – remote authentication for networks.
• SSH keys – secure login without passwords.

 

[robertwilliam]

Linux uses various authentication protocols, with its flexibility primarily provided by Pluggable Authentication Modules (PAM), which allows for the use of different methods like password-based, LDAP, and Kerberos authentication.

 

[Lucas]

Linux uses authentication protocols like PAM (Pluggable Authentication Modules) for flexible user verification, Kerberos for secure ticket-based authentication, LDAP for centralized directory services, SSH for secure remote access, and SASL to add authentication to protocols. These protocols ensure robust and versatile user authentication across Linux systems.

 

[CodeSage]

Some of the most common authentication protocols such as PAM (Pluggable Authentication Modules), Kerberos, LDAP authentication, SSS keys, or S/Key are common to Linux software to achieve secure user authentication.

 

[Scott]

Linux uses authentication protocols like PAM, LDAP, Kerberos, and SSH keys to manage user authentication and access.

 

[Lucky]

Linux uses several authentication protocols, including PAM (Pluggable Authentication Modules) for user login management. It also supports Kerberos for network authentication, LDAP for centralized directory services, and SSH key-based authentication for secure remote access. These protocols ensure flexible and secure identity verification.

 

[Tyler]

Linux uses authentication protocols like PAM for flexible login management, Kerberos for secure network authentication, LDAP for centralized user directories, SSH keys for secure remote access, and RADIUS/TACACS+ for enterprise network authentication.

 

[Sebastian]

Linux uses authentication protocols and systems such as PAM (Pluggable Authentication Modules), Kerberos, LDAP, SSH authentication, and RADIUS for user and network access control.

 

[Isaac]

Linux uses authentication protocols like PAM (Pluggable Authentication Modules), Kerberos, LDAP, and SSH keys to verify user identities and manage secure access.

 

[TrasvisHead]

Linux uses several authentication protocols, including PAM (Pluggable Authentication Modules), Kerberos, LDAP, SSH key-based authentication, RADIUS, and local password authentication. These protocols manage user login, access control, and secure authentication across systems and networks.

 

[Patrick]

Linux uses authentication protocols like PAM (Pluggable Authentication Modules), Kerberos, LDAP, RADIUS, and SSH key-based authentication.

 

[Raymond]

Linux uses several authentication protocols and mechanisms to manage user access. The most common ones include PAM (Pluggable Authentication Modules) for handling login authentication, Kerberos for secure network-based authentication, LDAP for centralized user management, and SSH authentication using passwords or public-key cryptography. It also supports RADIUS for remote access authentication and integrates with modern systems like OAuth or SAML through additional tools and services.