a series of interconnected network nodes protected by firewalls

interconnected network nodes protected firewalls cybersecurity internet connection protection communication infrastructure firewallshield intrusion datatransfer webnode transceiver server hub networksecurity detection ip chainlink nodeprotection privacy cyberwall ethernet router securenode gateway modem cluster remote fireproof vpn encrypted barrier digital encryption packet internetgateway circuit hotspot firewallguard database netlink fireblock hackerproof grid filter virtual