Duoauthproxy !!hot!! Jun 2026

The is a specialized server (Windows or Linux) that receives authentication requests from your local infrastructure—such as VPNs, firewalls, and servers—via RADIUS or LDAP .

The quiet heroism of duoauthproxy is this: It allows a university to protect its 1990s-era student information system. It lets a factory secure the PLC that controls a blast furnace. It gives a hospital another year of life for an MRI scanner's embedded Windows XP workstation. duoauthproxy

It allows you to secure older applications that only understand RADIUS/LDAP without needing to rewrite their code. The is a specialized server (Windows or Linux)

When Cisco bought Duo for $2.35 billion, many assumed the open-source-ish proxy would be killed in favor of Cisco's proprietary ISE (Identity Services Engine). Instead, Cisco doubled down. Why? Because the proxy was a for legacy Cisco gear. It gives a hospital another year of life

It verifies the user's password against your existing directory, like Active Directory (AD) or an OpenLDAP server.