Me

Stefan Thierolf
Sr. Professional Consultant IT Network and Communication at Vibracoustic.
Interrested in IT | Cisco | Network | Linux | Security | Cloud | Automation | DevNet

IT specialist system integration (Fachinformatiker Systemintegration) and work as Sr. Professional Consultant IT Network and Communication. Lived in the United States (New Hampshire) for about five years and moved back to Germany. Like to blog about Information Technology, Network, Linux and Security.

Concept for DNS security with Bind9, Pi-hole and OpenDNS

This is my new concept for DNS security with Bind9, Pi-hole and OpenDNS in my network. Bind9 is used as Enterprise DNS to resolve hostnames and IP addresses in the local area network, Pi-hole and OpenDNS are used for Internet DNS traffic. DNS traffic is passed by Cisco ASA Firewall ACL.

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