Day 43 of my PCNS Palo Alto Firewall series is all about GlobalProtect SSL VPN concept—what it is, how it works, and how it’s different from the VPN topics we already covered like IKEv2 and site-to-site. In simple words, I explain GlobalProtect as a remote VPN solution (like Cisco AnyConnect, Check Point remote VPN, or FortiClient) that extends your office boundary to wherever you are—home, hotel, or anywhere on the internet—so you can securely access corporate resources after authentication. Then I break down the real working flow: GlobalProtect needs two components—Portal and Gateway. First, the client connects to the portal, and the portal tells the user which gateway is nearest/best (based on the user’s public IP/geolocation). After that, the client builds the VPN tunnel with that gateway. I also share practical design options: portal and gateway can be on the same Palo Alto firewall, and you don’t need a dedicated box—but you must consider resource/throughput impact using datasheets. Finally, I clarify SSL VPN vs IPsec VPN and the split-tunnel vs full-tunnel decision. SSL is more like application access, while IPsec makes you part of the corporate network with routes, DNS, and subnet reachability. I also explain why many organizations do split tunneling for internal resources and use cloud proxy/SSE style controls for internet traffic, balancing security control and bandwidth constraints.