VPN FIX for Linux/Ubuntu/Android 

Description of Issue:

The University VPN certificate is valid until next year and it does not seem to be an issue on our end. We mainly support Mac/Windows for VPN but mobile devices and Linux (Along with the many other open source OS's) are best effort which is why there isn’t an official sharepoint page about this. 

The problem:

When connecting to VPN, affected users get the error: “Authentication failed due to problem verifying server certificate” 

The fix:

Installing Entrust Root Cert on the affected device 

Download the certificate labeled “(Non-EV) SSL CA-L1K” from this website 

Installation for Linux/Ubuntu users: 

1. Go to /usr/local/share/ca-certificates/ 

2. Create a new folder, i.e. "sudo mkdir uog" 

3. Change the file extension of the certificate from .cer to .crt 

4. Copy the .crt file into the uog folder 

5. Make sure the permissions are OK (755 for the folder, 644 for the file) 

6. Run "sudo update-ca-certificates" 

Installation for Android users: 

1. Move on to Settings 

2. Now, navigate to security (or Advanced Settings > security, Depends on the Device and Operating System) 

3. From Credential Storage Tab, click on Install from Phone Storage/Install from SD Card. 

4. A new file storage manager will appear. 

5. Now find the SSL certificate from your device, and select it to install. 

Then try to connect to VPN.