Bhardwaj Vishnu

Bhardwaj Vishnu is a Network Security Engineer with hands-on expertise in enterprise firewall management, network automation, and multi-vendor infrastructure. He holds Fortinet NSE 4/NSE 5, a Cisco CCNA, and the full Cisco Meraki certification track. He architects FortiGate security policies, manages Cisco Meraki MX/MS/MR deployments, and handles enterprise routing and switching. Every guide on netconfig.io comes from direct production experience — real CLI commands, verified configs.

Block AI Apps on FortiGate: Monitor & Block ChatGPT, Claude via Web Filter

August 13, 2026June 2, 2026 by Bhardwaj Vishnu

FortiGate web filter blocking ChatGPT and Claude AI app traffic

Introcution to Web Filter Shadow IT used to mean someone spinning up an unapproved Dropbox account. These days it means half your org pasting internal docs into ChatGPT without a second thought. I get asked about this constantly right now — “can we even see who’s using AI tools, let alone stop it?” — and … Read more

FortiASIC Architecture Deep Dive: NP7, CP9, SP5

September 8, 2026June 2, 2026 by Bhardwaj Vishnu

Fortinet FortiASIC architecture utilizes proprietary, hardware-accelerated Application-Specific Integrated Circuits (ASICs) rather than relying solely on general-purpose CPUs.