Generally speaking, an internet firewall is built on a network
Generally speaking, an internet firewall is built at the intersection of a network's internal network and external network to protect the internal network from attacks; a network firewall is a special network interconnection used to strengthen access control between networks All network traffic to and from devices and computers must pass through this firewall.
Generally speaking, an Internet firewall is established at the intersection of a network's internal network and external network.
Internet firewall is established at the intersection of a network's internal network and external network to protect the internal network from attacks.
Related introduction:
A network firewall is a special network interconnection device used to strengthen access control between networks. All network traffic to and from your computer passes through this firewall. A firewall scans network traffic flowing through it, which can filter out some attacks before they can be executed on the target computer. Firewalls can also close unused ports. And it can also prohibit outgoing communications on specific ports and block Trojans. Finally, it can block access from specific sites, thereby preventing all communications from unknown intruders.
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