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1) 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

1) 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?

2) 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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