Rule Explanations/Purpose for Cyber Security

1. allow outbound ______ sessions to the Internet
2. allow _____ queries to the Internet
3. allow _______ to the Internet
4. allow replies to pings from the Internet
5. allow FTP session initiation to Internet (note this is port 21 (FTP) only... wed also need port 20 (FTP-data) which is absent in this example)
6. allow ______ session initiation to Internet
7. allow ________________________

7a. allow TCP response traffic to externally initiated TCP traffic (i.e., SMTP, FTP, and DNS)

8. prevent ______________________ from entering
9. allow inbound ______ sessions from Internet
10. allow inbound ______ responses
11. allow _____ response tfc to internally initiated
12. allow _______ replies
13. allow unreachable (host or port) msgs
14. allow notification of filtered tfc msgs
15. allow notification of TTL=0 and lost fragments
16. allow notification that fragmentation was reqd
17. allow inbound FTP tfc to our FTP server
18. allow inbound mail to go to our SMTP server
19. allow DNS __________________ to our DNS server
20. allow Internet clients to get name resolution fm our DNS server