Does Ubuntu need a firewall?

Related questions

1. Why Ubuntu is secure?
2. What's Ubuntu good for?
3. What do you mean by Ubuntu?
4. What the concept of ubuntu comprises?
5. What are the values of ubuntu?
6. What is the purpose of Ubuntu?
7. Which is best Windows or Ubuntu?
8. Do you need antivirus for Ubuntu?
9. What is the super key in Ubuntu?
10. Is it safe to use Ubuntu?

Tags

1. #internet
2. #since
3. #firewall
4. #hardened
5. #system
6. #security
7. #default
8. #properly
9. #contrast
10. #microsoft
11. #ubuntu
12. #introduce
13. #desktop
14. #issues
15. #linux
16. #ports
17. #general
18. #windows