Introduction to IPTables

Summary

Extensive coverage of iptables and iptables syntax, firewall policies, and attacks: SYN flood & ping flood (smurf attack).

28:13 - nano text editor usage
28:58 - How to install vi (vim) in Ubuntu
29:15 - Review of execute permissions
29:35 - Using vim to edit the firewall rules shell script
36:24 - Review of chmod command
36:53 - netstat command usage
37:11 - How to install vsftpd
37:22 - How to install openssh-server
37:48 - Running the firewall rules shell script
38:07 - Listing the active iptables firewall rules
38:45 - Testing FTP access with active firewall rules
39:33 - Testing SSH access
40:35 - Re-enabling SSH access
41:13 - Testing SSH access again (this time successful)
41:37 - Testing ping (accepted)
41:52 - Testing ping (rejected)

Reference Materials

Guide to Network Defense and Countermeasures - Chapter 11 (pgs. 439-444)
http://www.netfilter.org/documentation/index.html - Netfilter/iptables Documentation
http://www.vim.org/docs.php - Vim Documentation


Additional Information

Logging: http://www.thegeekstuff.com/2012/08/iptables-log-packets/





Видео Introduction to IPTables канала Computer and Network Security