Go to https://trestle.colum.edu. Please make sure to use Chrome when installing VPN.
Begin installing Global Protect sign-in using your MyColumbia ID and password and click Log In.
Click on Download MAC 32/64 bit Global Protect Agent.
Double click to start the installation.
Click Continue.
Select Global Protect and click continue.
Click Change the install location.
For faculty and staff enter trestle.colum.edu and for students enter truss.colum.edu and click Connect.
You have successfully installed Trestle. Click Close.
After the installer has finished, an additional prompt will appear on devices running MacOS 10.13 (High Sierra) or higher. If you see this prompt, click Open Security Preferences.
Click the Allow button to permit the Global Protect client to complete the installation. Close this window and the installer window.
Click Move to Trash.
In the Mac menu bar, in the upper right corner of your screen, click on the gray Global Protect icon to display the connection window. Click Connect.
Enter your Username and password then click Sign in.
Before you are officially logged in you will need to follow the process for Duo Authentication.
There are step-by-step instructions for you to follow. Further information may also be found here: https://guide.duo.com/prompt.
Once you click Approve, you will be connected to Global Protect. When you are finished using the VPN make sure to disconnect.
Please note: After 12 hours of inactivity the VPN will disconnect.
If you have any issues with Global Protect you may need to follow these instructions on How To Uninstall and Reinstall VPN on a Mac.