---
title: "How to manage TACACS servers"
slug: "how-to-manage-tacacs-servers"
updated: 2026-03-04T12:03:10Z
published: 2026-03-04T14:36:29Z
canonical: "docs.senhasegura.io/how-to-manage-tacacs-servers"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.senhasegura.io/llms.txt
> Use this file to discover all available pages before exploring further.

# How to manage TACACS servers

TACACS (Terminal Access Controller Access-Control System) is a remote authentication protocol to communicate information between a network server and a client. Originally developed by Cisco Systems, the protocol controls access to terminals and network services, allowing system administrators to restrict user command options. TACACS allows passwords to be managed centrally, which is ideal for systems that access many network devices.

Segura® allows you to use TACACS servers to authenticate yourself simply by configuring them within your Segura® instance.

## Register a new server

1. On Segura®, in the navigation bar, hover over the **Products menu** and select **Settings**.
2. In the side menu, select **Authentication > Tacacs > Servers**.
3. Click the **Add** button.
4. In the **Servers** screen, fill in the fields:
  1. **Hostname**: IP or hostname of your TACACS server.
  2. **Port**: port on which your TACACS server is listening.
  3. **Enabled**: select Yes to register your server as active in Segura®.
  4. **Secret key**: your TACACS server's secret key.
  5. **Timeout(s**): Enter the timeout time that Segura® will wait for a response from the TACACS server.
  6. **Max attempts**: enter the maximum number of attempts that Segura® will make on the TACACS server.
5. Click on **Save**.

## Edit a server

1. On Segura®, in the navigation bar, hover over the **Products menu** and select **Settings**.
2. In the side menu, select **Authentication > Tacacs > Servers**.
3. In the **Servers** report, identify the one you want to change.
4. Click the **Actions** button and select **Edit**.

The **Servers** window will open in edit mode. Change the information you want and click **Save**.

          Info

          

If you don't change the secret key, the current value will be kept in the register.

## Test authentication

In Segura®, you can test the authentication of your TACACS server. To do this, follow the steps below:

1. On Segura®, in the navigation bar, hover over the **Products menu** and select **Settings**.
2. In the side menu, select **Authentication > Tacacs > Servers**.
3. In the **Servers** report, identify the one you want to change.
4. Click the **Actions** button and select **Test authentication**.
5. In the **TACACS authentication test** screen, enter the **Username** and **Password** of the user you want to test authentication.
6. Click on **Test Authentication**.

A message will indicate whether authentication was successful.