Get the latest GlobalProtect package from your IT administrator, or download an older one from Dartmouth’s mirror.

Open a terminal and change into your Downloads directory:

cd Downloads
tar -xvf PanGPLinux-x.x.x.tgz

Adjust the filename for the version you downloaded (e.g. PanGPLinux-5.0.3.tgz).

Change into the extracted directory and install the right package for your distro — deb, rpm, or tgz. For Ubuntu, install the deb:

cd PanGPLinux-5.0.3
sudo dpkg -i GlobalProtect_deb-5.0.3.0-10.deb
# or:
sudo apt-get install ./GlobalProtect_deb-5.0.3.0-10.deb

The client installs to /opt/paloaltonetworks/globalprotect; per-user settings and profiles live in $HOME/.globalprotect.

Using GlobalProtect

Subcommands you can use:

collect-log            collect log information
connect                connect to server
disconnect             disconnect
disable                disable connection
import-certificate     import a client certificate file
quit                   quit prompt mode
rediscover-network     rediscover network
remove-user            clear credentials
resubmit-hip           resubmit HIP information
set-log                set debug level
show                   show information

Connect non-interactively:

globalprotect connect --portal myportal.example.com

Connect interactively:

globalprotect
>> connect --portal myportal.example.com

Typical output:

Retrieving configuration...
Disconnected
10.1.121.35 - portal:local:Enter login credentials
username: YourUsername
Password:
Retrieving configuration...
Discovering network...
Connecting...
Connected

Disconnect:

globalprotect disconnect

Check status:

globalprotect show --status

Hope this helps.