Question: 1. What kind of firewall does IPTables implement? 2. In order to run this script, we would need to make it executable; assuming the script

1. What kind of firewall does IPTables implement?

2. In order to run this script, we would need to make it executable; assuming the script is name firewall.sh, how would we go about making this script executable?

3. What line would you add to this script to create rules for:

a. DNS?

b. SSH?

c. HTTP?

d. HTTPS?

e. SMTP?

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