heimdal ☆
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Description:
Free Kerberos 5 implementation
Type: Formula  |  Latest Version: 7.8.0@1  |  Tracked Since: Nov 7, 2025
Links: Homepage  |  formulae.brew.sh
Category: Security
Tags: authentication kerberos security networking sso
Install: brew install heimdal
About:
Heimdal is a free, open-source implementation of the Kerberos 5 network authentication protocol. It provides robust, secure authentication for client-server applications, protecting against eavesdropping and replay attacks. Its main value is enabling single sign-on (SSO) capabilities across distributed network services.
Key Features:
  • Kerberos 5 protocol implementation
  • K5login and keytab management
  • Secure cross-realm authentication
  • Includes KDC (Key Distribution Center) server
Use Cases:
  • Authenticating users to network services like SSH and IMAP
  • Setting up a centralized authentication server for an internal network
Alternatives:
  • MIT Kerberos – The MIT implementation is the de facto standard and often has better integration with enterprise environments, while Heimdal is known for clean code and is integrated into some OSes like OpenBSD.
Version History
Detected Version Rev Change Commit
Jan 28, 2026 3:18am 1 REVISION_ONLY 0aab147d
Nov 7, 2025 9:24am 1 VERSION_BUMP e3e1abe2
Sep 13, 2024 4:55pm 1 VERSION_BUMP 153fab57
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