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Setting Up BIND9 as an Internal DNS Server on CentOS Stream 9: Zone Files, Forward DNS, SELinux, and firewalld

By admin July 10, 2026

After 6 months running BIND9 as an internal DNS server on CentOS Stream 9 in a production environment, I've compiled the complete process: comparing DNS solutions, installation, zone file configuration, handling SELinux enforcing mode, and properly opening firewalld. Written for anyone who needs a reliable DNS server for an enterprise network without spending hours debugging each step.

Network

Configuring NAT64 and DNS64 on Linux with Tayga and BIND9: Connecting IPv6-Only Servers to Legacy IPv4 Services

By admin July 8, 2026

A hands-on guide to configuring NAT64 with Tayga and DNS64 with BIND9 on Linux, enabling IPv6-only servers to connect to legacy IPv4-only services without extra IPv4 addresses or application code changes. Based on six months of real production experience.

Ubuntu

Building Your Own Internal DNS Server with BIND9 on Ubuntu: A Solution to Replace Bulky Hosts Files

By admin May 23, 2026

Forget manual hosts file updates! This guide to installing BIND9 on Ubuntu Server helps you manage internal domains professionally, with practical tips to avoid system errors.

Security

Configuring DNSSEC for Linux: Don’t Let Your Website Get Hijacked Even with SSL

By admin April 22, 2026

DNSSEC is a mandatory security layer to prevent DNS Spoofing. This article provides a detailed guide on configuring BIND9 on Linux, creating ZSK/KSK keys, and setting up the DS Record trust chain.

Network

Setting Up a DNS Server with Bind9 on Ubuntu/Debian

By admin February 28, 2026

A step-by-step guide to setting up an internal DNS server with Bind9 on Ubuntu/Debian: installation, forward and reverse zone files, forwarder and ACL configuration, testing, and troubleshooting. Written from real-world experience managing an office network.