Linux comes with a built-in firewall called iptables. In this video, learn about how to configure iptables rules.
- [Instructor] Linux provides a basic firewall capability … through the use of a program called iptables. … I've got terminal windows open on Hydra and Scorpio … and I'll use them to demonstrate how to use iptables. … Iptables has a lot of features … which would take hours to learn, … but we'll stick to the basics in this course. … iptables is only one of a set of … rule-based firewall modules in Linux. … I won't cover the rest here, but these include … ip6ables, arptables, and ebtables. … We can check the default rules by typing … sudo iptables minus L minus N minus V. … I've typed sudo to execute this command as superuser. … The option minus L tells iptable to list its rules, … the minus N switch requests numeric format, … and minus V means verbose, so we get … as much information as possible. … We can see there are three sections listed, … all with no entries. … These are called the input, forward, and output chain. … The input chain contains the rules controlling … what addresses and ports can be used …
- Hackers and the kill chain
- Viruses, spyware, and adware
- Detecting malware with Windows Defender
- Using Windows Firewall and Linux iptables
- Scanning with Nmap
- Monitoring network communications with Netcat
- Combating application-level threats
- Scanning a website to check for vulnerabilities
- Capturing intruders through packet inspection
Skill Level Beginner
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
1. Why Cybersecurity?
4. Network Scanning
5. Network Connections
6. Vulnerability Scanning
7. Web Applications
8. Monitoring Packets
Next steps1m 27s
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