TACACS+ NG

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tac_plus-ng is a TACACS+ daemon that supports RADIUS, too. It provides networking components like routers and switches with authentication, authorisation and accounting services.

License model

  • Free • Open Source

Platforms

  • Windows
  • Mac
  • Linux
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 Tags

  • tac-plus-ng
  • tac-plus
  • tcprelay
  • tacacs
  • mavis
  • radiusd
  • spawnd
  • radius
  • radius-server
  • ftpd

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TACACS+ NG information

  • Developed by

    MarcJHuber

  • Licensing

    Open Source and Free product.

  • Written in

  • Alternatives

    4 alternatives listed

  • Supported Languages

    • English

GitHub repository

  •  121 Stars
  •  28 Forks
  •  4 Open Issues
  •   Updated Jul 10, 2025 
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TACACS+ NG was added to AlternativeTo by xn ax on Feb 6, 2025 and this page was last updated Feb 6, 2025.
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What is TACACS+ NG?

tac_plus-ng is a TACACS+ daemon that supports RADIUS, too. It provides networking components like routers and switches with authentication, authorisation and accounting services.

This version is a major rewrite of the original public Cisco source code and is in turn largely based on tac_plus, which comes with the same distribution. Key features include:

NAS specific device keys, prompts, enable passwords

Rule-based permission assignment

Flexible external back-ends for user profiles (e.g. via PERL scripts or C; LDAP (including ActiveDirectory), RADIUS and others are included)

Connection multiplexing (multiple concurrent NAS clients per process)

Session multiplexing (multiple concurrent sessions per connection, single-connection)

Scalable, no limit on users, clients or servers.

CLI context aware.

Full support for both IPv4 and IPv6

Implements and auto-detects HAProxy protocol 2.

Supports TLS

Compliant to RFC8907

Supports Linux VRFs

Supports (non-standard) SSH Public Key Authentication (see the Wiki for reference)

Implements and auto-detects legacy RADIUS (UDP and TCP), RADSEC (TLS) and RADIUS/DTLS (all with PAP authentication only).

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