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- [Firewalls—nftables](https://dti-techs.gitbook.io/practical-foundations-in-cybersecurity/6.-practical-foundations-in-ethical-hacking/defensive-cybersecurity-technologies/nftables.md)
- [Defensive cybersecurity technologies](https://dti-techs.gitbook.io/practical-foundations-in-cybersecurity/6.-practical-foundations-in-ethical-hacking/defensive-cybersecurity-technologies.md)
- [Firewalls—OPNsense](https://dti-techs.gitbook.io/practical-foundations-in-cybersecurity/6.-practical-foundations-in-ethical-hacking/defensive-cybersecurity-technologies/opnsense.md)
- [SIEM/EDR—Wazuh (SEIM/XDR)](https://dti-techs.gitbook.io/practical-foundations-in-cybersecurity/6.-practical-foundations-in-ethical-hacking/defensive-cybersecurity-technologies/siem-edr-wazuh-seim-xdr.md)
- [IDS/IPS—Zeek (NIDS)](https://dti-techs.gitbook.io/practical-foundations-in-cybersecurity/6.-practical-foundations-in-ethical-hacking/defensive-cybersecurity-technologies/ids-ips-zeek-nids.md)

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