Corporate firewalls connect multiple computers in a network and use protocols like FTP to securely transfer files between devices on intranets and the internet. They utilize access routers, bastion hosts, and demilitarized zones (DMZs) to filter traffic, encapsulate packets, and implement security measures that protect private network segments while allowing controlled external access.

1. How Corporate
Firewalls Work

2. Network
The technology that the computer network
connects plural computers. Or the whole
connected system. It is said a communications
infrastructure to make the base of the
information-oriented society.

3. FTP
The protocol that is used when the FTP is
TCP/IP network such as the Internet or the
intranet and forwards a file.

4. Access Router
● AURP router that is connected to the tunnel.
Other AppleTalk packets (IP, etc.)
encapsulated in the protocol header, and do the
opposite.

5. Bastion Host
● DMZ host locations that could be under
threat or barrier, such as segments. Made
the point that security measures.

6. LINK
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