---
title: Linux/Unix Agent
slug: kronpam-agent-reference-guide-3-6-0/linuxunix-agent
description: Learn how the Single Connect Linux Agent can revolutionize your Linux server management. With three modes: single, hybrid, and multitenant, it offers features like multi-factor authentication, offline authentication, and privilege escalation. Enjoy benefi
docTags: 
createdAt: 2023-06-20T15:19:26.000Z
---

Kron PAM Linux Agent is an application that is installed on Linux servers to manage Authentication, Authorization, and Accounting (AAA). The communication between Kron PAM Linux Agent and Kron PAM instances is provided by HTTPS protocol. 

Application setup can be done in three unusual ways single, hybrid, and multitenant mode. While the OpenSSH version on the server is changed with the Kron PAM Linux Agent’s OpenSSH server in single mode, in hybrid mode, the existing OpenSSH server on the server continues to work, and the Kron PAM Linux Agent’s OpenSSH server is installed additionally. Multitenant-compatible installation can also be made if the Kron PAM Multitenancy feature is enabled.