Forward Proxy vs Reverse Proxy: How They Work
You may have heard the terms forward proxy and reverse proxy while working with firewalls, web servers, or enterprise networks.
MAC Address Explained: How It Works in a Network
You connect a laptop to a switch, open a website, or access a server on your local network. A lot
Palo Alto Security Policy Explained
A Palo Alto firewall can have the correct interfaces, routing, NAT, and security profiles configured, but traffic can still be
ZTNA vs VPN: Is the VPN Dying?
You may have seen this question quite often lately: “ZTNA is replacing VPN. Is traditional VPN finally dying?” At first,
How to Troubleshoot Palo Alto IPsec VPN
The VPN tunnel shows UP, but users still cannot access the remote network. Or maybe the tunnel is completely down
How to Configure Site-to-Site IPsec VPN on Palo Alto
In the previous articles, we covered the fundamentals of how site-to-site IPsec VPN works, including IKE Phase 1 negotiation and
IPsec VPN Routing, NAT and Security Policies Explained
In the previous three articles, we built the IPsec VPN concept step by step. We looked at how a site-to-site
IPsec VPN Phase 2 Explained: IPsec, PFS and Traffic Selectors
In the previous article, we looked at IKE Phase 1 and how two VPN peers establish a secure and authenticated
IPsec VPN IKE Phase 1 Explained: Negotiation and Authentication
In the first article of this series, we looked at what a site-to-site IPsec VPN is, why organizations use it,