LinOTP
The netgo software GmbH legal notice gives its address as Sachsendamm 63-64, 10829 Berlin, Germany.
What it is
LinOTP is an open-source platform for multi-factor authentication and protection of digital identities and transactions. Its supported factors include OATH TOTP and HOTP, push, QR, SMS, email, and hardware options such as FIDO U2F and WebAuthn. Listed protocols include SAML, OIDC, ADFS, and RADIUS, and app integration methods include HTTP/JSON API, PAM, OpenVPN, SSH, Apache, and WordPress. LinOTP connects to Active Directory, LDAP, and SQL databases including PostgreSQL, MySQL, MariaDB, Oracle, and DB2. A self-service portal lets users register, manage, and reset tokens, while hardware tokens can be automatically resynchronized. The maker describes offline authentication for Windows users without a permanent internet connection. Deployment options include a virtual appliance for common hypervisors and containers for Kubernetes and other orchestration platforms. The maker says it can scale from small installations to enterprises with thousands of users and distributed setups. The site describes an auditable open-source architecture and lists support for several compliance requirements. LinOTP is developed and maintained by netgo software GmbH.
For and against
For
- Supports OATH, push, QR, SMS, and email factors.
- Connects to Active Directory, LDAP, and SQL databases.
- Offers a self-service token portal.
- Deployment options include virtual appliances and containers.
- Maker describes offline Windows authentication.
Against
- LinOTP 3 Debian packages are listed for Debian 10 Buster.
- RPM packages are currently available only for LinOTP 2.
- Other Linux distributions may require source or pip installation.
The verdict
LinOTP offers a broad set of authentication methods, integrations, and deployment options. Check the listed Linux package limits and support arrangements for your intended setup.
Who it suits
LinOTP may suit organizations seeking self-managed multi-factor authentication with directory and database connections, varied token methods, and deployment choices.
Plans and prices
LinOTP demo license
Free demo license for the LinOTP MFA platform; request and arrange the test deployment with the LinOTP team
Read 4 Oct 2026 · linotp.de
LinOTP open-source software
AGPLv3 and GPLv2; no public software price stated
Read 4 Oct 2026 · linotp.org
On the record
- Audit
- The LinOTP site says its signed audit log records authentication and management actions and is tamper-proof.linotp.org · read 4 Oct 2026
- Deployment
- The maker lists a virtual appliance compatible with common hypervisors and container deployment for Kubernetes and other orchestration platforms.linotp.de · read 4 Oct 2026
- Directories
- LinOTP connects to Active Directory, LDAP, and SQL databases including PostgreSQL, MySQL, MariaDB, Oracle, and DB2.linotp.de · read 4 Oct 2026
- Maker
- LinOTP is developed and maintained by netgo software GmbH.linotp.de · read 4 Oct 2026
- Notable install limits
- The LinOTP 3 download page lists Debian 10 Buster packages, says RPM packages are currently available only for LinOTP 2, and notes other Linux distributions may use source or pip installation.linotp.org · read 4 Oct 2026
- Offline login
- The maker describes offline authentication for Windows users without a permanent internet connection.linotp.de · read 4 Oct 2026
- Protocols
- The product page lists SAML, OIDC, ADFS, and RADIUS among its integration protocols.linotp.de · read 4 Oct 2026
- Purpose
- LinOTP is an open-source platform for strong multi-factor authentication and protecting digital identities and transactions.linotp.de · read 4 Oct 2026
- Scale
- The maker says LinOTP scales from small installations to enterprises with thousands of users and supports distributed setups.linotp.de · read 4 Oct 2026
- Security and compliance
- The product page says its open-source architecture is auditable and lists support for GDPR, ISO 27001, NIS2, BSI IT-Grundschutz, PSD2, and PCI-DSS requirements.linotp.de · read 4 Oct 2026
- Self-service
- Users can register, manage, and reset tokens through a self-service portal, and hardware tokens can be automatically resynchronized.linotp.de · read 4 Oct 2026
- Support
- Paid support offerings include support contracts with SLAs, software subscriptions, integration services, possible 24/7 emergency response, SaaS, training, and remote or on-site help.linotp.de · read 4 Oct 2026
- Tokens
- Supported token options include OATH TOTP/HOTP, push, QR, SMS, email, and hardware tokens including FIDO U2F and WebAuthn.linotp.de · read 4 Oct 2026
