The LoginTC RADIUS Connector is a complete two-factor authentication virtual machine packaged to run within your corporate network. The LoginTC RADIUS Connector enables Barracuda SSL VPN remote access appliances to use LoginTC for the most secure two-factor authentication.

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Video Instructions

Architecture

The Barracuda SSL VPN Portal provides simple browser-based remote access for desktop and mobile devices. When accessing the portal via the web browser, users can browse apps, network folders, and files as if they are connected to the office network. The portal supports most commonly used devices, including Apple iOS, Android, Blackberry, etc. Barracuda Ng Vpn Client Mac Download, Zenmate Vpn Extension For Uc Browser, Hidemyass Win 10, Set Nup My Own Vpn.

Authentication Flow

1. A user attempts access with their existing Barracuda VPN client with username / password
2. A RADIUS authentication request is sent to the LoginTC RADIUS Connector
3. The username / password is verified against an existing first factor directory (LDAP, Active Directory or RADIUS)
4. An authentication request is made to LoginTC Cloud Services
5. Secure push notification request sent to the user’s mobile or desktop device
6. User response (approval or denial of request) sent to LoginTC Cloud Services
7. The LoginTC RADIUS Connector polls until the user responds or a timeout is reached
8. RADIUS Access-Accept sent back to Barracuda
9. User is granted access to Barracuda

Prefer Reading a PDF?

Download a PDF file with configuration instructions:

Compatibility

Barracuda appliance compatibility:

• SSL VPN 180
• SSL VPN 280
• SSL VPN 380
• SSL VPN 480
• SSL VPN 680
• SSL VPN 880
• SSL VPN 180Vx
• SSL VPN 380Vx
• SSL VPN 480Vx
• SSL VPN 680Vx

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Compatibility Guide

Any other Barracuda appliance which have configurable RADIUS authentication are supported.

Prerequisites

Before proceeding, please ensure you have the following:

• LoginTC Admin Panel account
• Computer virtualization software such as VMware ESXi, VirtualBox, or Hyper-V
• Virtual Machine requirements:
  • 1024 MB RAM
  • 8 GB disk size
• Barracuda SSL VPN V380 and higher

Create Application

Start by creating a LoginTC Application for your deployment. An Application represents a service (e.g. An application is a service (e.g., VPN or web application) that you want to protect. e) that you want to protect with LoginTC.

Create a LoginTC Application in LoginTC Admin Panel, follow Create Application Steps.

If you have already created a LoginTC Application for your deployment, then you may skip this section and proceed to Installation.

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Installation

1. Download the latest LoginTC RADIUS Connector:
2. Unzip the file
3. Import the virtual appliance your computer virtualization software
4. Ensure that the LoginTC RADIUS Connector has a virtual network card
5. Start the virtual appliance
6. You will be presented with a console dashboard:
7. The first thing you must do is set the logintc-user password:
8. By default the appliance network is configured by DHCP. If you wish to manually configure the network, use the Down arrow key to navigate to Network Configuration and DNS Configuration
9. For access to the web interface select Web Server and then Start: It may take 5-10 seconds to start the first time:
10. Once started, access the web interface by navigating to the URL mentioned in the information box:

The LoginTC RADIUS Connector runs CentOS 7.7 with SELinux. A firewall runs with the following open ports:

Note: Username and Password

logintc-user is used for SSH and web access. The default password is logintcradius. You will be asked to change the default password on first boot of the appliance and will not be able to access the web interface unless it is change.

The logintc-user has sudo privileges.

Configuration

Configuration describes how the appliance will authenticate your RADIUS-speaking device with an optional first factor and LoginTC as a second factor. Each configuration has 4 Sections:

1. LoginTC

This section describes how the appliance itself authenticates against LoginTC Admin Panel with your LoginTC Application. Only users that are part of your organization and added to the domain configured will be able to authenticate.

2. First Factor

This section describes how the appliance will conduct an optional first factor. Either against an existing LDAP, Active Directory or RADIUS server. If no first factor is selected, then only LoginTC will be used for authentication.

3. Passthrough

This section describes whether the appliance will perform a LoginTC challenge for an authenticating user. The default is to challenge all users. However with either a static list or Active Directory / LDAP Group you can control whom gets challenged to facilitate seamless testing and rollout.

4. Client and Encryption

This section describes which RADIUS-speaking device will be connecting to the appliance and whether to encrypt API Key, password and secret parameters.

Data Encryption

It is strongly recommended to enable encryption of all sensitive fields for both PCI compliance and as a general best practice.

The web interface makes setting up a configuration simple and straightforward. Each section has a Test feature, which validates each input value and reports all potential errors. Section specific validation simplifies troubleshooting and gets your infrastructure protected correctly faster.

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First Configuration

Close the console and navigate to your appliance web interface URL. Use username logintc-user and the password you set upon initial launch of the appliance. You will now configure the LoginTC RADIUS Connector.

Create a new configuration file by clicking + Create your first configuration:

LoginTC Settings

Configure which LoginTC Application to us:

Configuration values:

The Application ID and Application API Key are found on the LoginTC Admin Panel.

Click Test to validate the values and then click Next:

First Authentication Factor

Configure the first authentication factor to be used in conjunction with LoginTC. You may use Active Directory / LDAP or an existing RADIUS server. You may also opt not to use a first factor, in which case LoginTC will be the only authentication factor.

Active Directory / LDAP Option

Select Active Directory if you have an AD Server. For all other LDAP-speaking directory services, such as OpenDJ or OpenLDAP, select LDAP:

Configuration values:

Click Test to validate the values and then click Next.

Existing RADIUS Server Option

If you want to use your existing RADIUS server, select RADIUS:

Configuration values:

RADIUS Vendor-Specific Attributes

Common Vendor-Specific Attributes (VSAs) found in the FreeRADIUS dictionary files will be relayed.

Click Test to validate the values and then click Next.

Passthrough

Configure which users will be challenged with LoginTC. This allows you to control how LoginTC will be phased in for your users. This flexibility allows for seamless testing and roll out.

For example, with smaller or proof of concept deployments select the Static List option. Users on the static list will be challenged with LoginTC, while those not on the list will only be challenged with the configured First Authentication Factor. That means you will be able to test LoginTC without affecting existing users accessing your VPN.

For larger deployments you can elect to use the Active Directory or LDAP Group option. Only users part of a particular LDAP or Active Directory Group will be challenged with LoginTC. As your users are migrating to LoginTC your LDAP and Active Directory group policy will ensure that they will be challenged with LoginTC. Users not part of the group will only be challenged with the configured First Authentication Factor.

No Passthrough (default)

Select this option if you wish every user to be challenged with LoginTC.

Static List

Select this option if you wish to have a static list of users that will be challenged with LoginTC. Good for small number of users.

LoginTC challenge users: a new line separated list of usernames. For example:

Active Directory / LDAP Group

Select this option if you wish to have only users part of a particular Active Directory or LDAP group to be challenged with LoginTC. Good for medium and large number of users.

Configuration values:

Configuration Simplified

If Active Directory / LDAP Option was selected in First Authentication Factor the non-sensitive values will be pre-populated to avoid retyping and potential typos.

Click Test to validate the values and then click Next.

Client and Encryption

Configure RADIUS client (e.g. your RADIUS-speaking VPN):

Client configuration values:

Data Encryption

It is strongly recommended to enable encryption of all sensitive fields for both PCI compliance and as a general best practice.

Click Test to validate the values and then click Save.

Testing

When you are ready to test your configuration, create a LoginTC user (if you haven’t already done so). The username should match your existing user. Provision a token by following the steps:

1. In a new tab / window log into the LoginTC Admin Panel
2. Click Domains
3. Click on your domain
4. Click on Members
5. Click Issue Token button beside your user:
6. A 10-character alphanumeric activation code will appear beside the user:
7. Open the LoginTC mobile app.
8. Enter the 10-character alphanumeric activation code:
9. Load the token to complete the process

When you have loaded a token for your new user and domain, navigate to your appliance web interface URL:

Click Test Configuration:

Enter a valid username and password; if there is no password leave it blank. A simulated authentication request will be sent to the mobile or desktop device with the user token loaded. Approve the request to continue:

Congratulations! Your appliance can successfully broker first and second factor authentication. The only remaining step is to configure your RADIUS device!

If there was an error during testing, the following will appear:

In this case, click See logs and then click the /var/log/logintc/authenticate.log tab to view the log file and troubleshoot:

Barracuda Configuration -Quick Guide

Once you are satisfied with your setup, configure your Barracuda to use the LoginTC RADIUS Connector.

For your reference, the appliance web interfaceSettings page displays the appliance IP address and RADIUS ports:

The following are quick steps to get VPN access protected with LoginTC. The instructions can be used for existing setups as well.

1. Sign In to your Barracuda SSL VPN Web Interface (https://<IP address for the Barracuda SSL VPN>)
2. Navigate to Access Control > Authentication Schemes:
3. Scroll down to Authentication Schemes and click the Edit button on the scheme you want to use LoginTC RADIUS authentication:
4. In Modules section select RADIUS from the Available modules and click Add >>. Ensure that RADIUS is the only module listed under Selected modules.
5. Navigate to Access Control > Configuration:

6. Scroll down to the RADIUS section, fill out the form and save changes:

   Property	Explanation	Example
   RADIUS Server	Address of LoginTC RADIUS Connector	10.0.10.116
   Authentication Port	RADIUS authentication port. Must be 1812.	1812
   Accounting Port	RADIUS accounting port. Must be 1813.	1813
   Shared Secret	The secret shared between the LoginTC RADIUS Connector and its client.	bigsecret
   Authentication Method	RADUIS authentication method. Must be PAP.	PAP
   Time Out	Time Out for a RADIUS message. Must be at least 90.	90
   Authentication Retries	The number of retries for a RADIUS message. Should be 1.	1

To test, navigate to the Barracuda SSL VPN Web Interface and attempt access.

User Management

There are several options for managing your users within LoginTC:

• Individual users can be added manually in LoginTC Admin Panel
• Bulk operations using CSV Import
• Programmatically manage user lifecycle with the REST API
• One-way user synchronization of users to LoginTC Admin is performed using User Sync Tool.

Logging

Logs can be found on the Logs tab:

See Full List On Campus.barracuda.com

Troubleshooting

No Network Connection

1. First ensure that your LoginTC RADIUS Connector is configured to have a virtual network adapter on eth0
2. Ensure that the virtual network adapter MAC address matches the one in the file /etc/sysconfig/network-scripts/ifcfg-eth0

3. Restart the networking service:

4. If you notice the error that eth0 is not enabled, then check driver messages for more information:

5. It’s possible that the virtualization software renamed the network adapter to eth1. If this is the case, rename /etc/sysconfig/network-scripts/ifcfg-eth0 to ifcfg-eth1.

   Open the file and update the DEVICE='eth0' line to DEVICE='eth1'

Not Authenticating

If you are unable to authenticate, navigate to your appliance web interface URL and click Status:

Ensure that all the status checks pass. For additional troubleshooting, click Logs:

Email Support

For any additional help please email support@cyphercor.com. Expect a speedy reply.

Upgrading

From 3.X

Follow these instructions to upgrade your LoginTC RADIUS virtual appliance to the latest version (3.0.4):

1. SSH into the virtual appliance or open the console (use same username / password as web GUI)
2. cd /tmp
3. curl -O https://www.logintc.com/downloads/logintc-radius-connector-3.0.4-upgrade.sh
4. sudo sh logintc-radius-connector-3.0.4-upgrade.sh

The upgrade script will restart your appliance after upgrading.

Upgrade Script Download Verification

Execute: sha1sum /tmp/logintc-radius-connector-3.0.4-upgrade.sh

Output SHA‑1 should match: d372582c6c8242de9cd4ce3e03e666fbd1cb20bb

From 2.X

Important: LoginTC RADIUS Connector 2.X End-of-life

The LoginTC RADIUS Connector 2.X virtual appliance is built with CentOS 6.8. CentOS 6.X is End of Lifetime (EOL) November 30th, 2020. See CentOS Product Specifications. Although the appliance will still function it will no longer receive updates and nor will it be officially supported.

New LoginTC RADIUS Connector 3.X

A new LoginTC RADIUS Connector 3.X virtual appliance has been created which runs CentOS 7.7.1908. It is virtually identical to the existing appliance, with the exception of the underlying operating system. Inline upgrade from CentOS 6.X to CentOS 7.X is not supported. As a result upgrade is deploying a new appliance. A migration script has been created to help quickly copy over existing configurations and ssl certificates to the new appliance and minimize manual steps.

Complete 2.X to 3.X upgrade guide: LoginTC RADIUS Connector Upgrade Guide

Additional Resources

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