The document discusses a network security configuration with a firewall, perimeter network, and bastion host. A screening router is installed between the perimeter network and the Internet to judge which packets can pass through. A bastion host in the perimeter network manages access to the internal network from the Internet, admitting only email and FTP access.

1. week14
S1160165 daichi nihei
s1160167 hasimoto kazunori
s114123 yuta suzuki
s1140049 rune okabe

2. summary
The firewall shield is installed between the
Internet and an internal network.
A bastion host in the perimeter network manages
the access to the internal network from the
Internet
This host admits only E-mail and ftp access.
A screening router is installed between perimeter
network and the Internet.
When accessing it from the internal network to the
Internet, the Internet router passes without fail.
The rule to use for a judgment of the passage of

3. quiz
Q1 Is the chalk router and the screening router
are whether it is packets that can be passed
where judged?
A1 protocol and packet's hedder
Q2 What is data that can pass a bastion?
A2 receiving email and accessing corporation's
FTP site

4. quiz
Q1 Is the chalk router and the screening router
are whether it is packets that can be passed
where judged?
A1 protocol and packet's hedder
Q2 What is data that can pass a bastion?
A2 receiving email and accessing corporation's
FTP site

5. verb
paly

6. thanks
Thanks for english class