DNS & Domains
DNS configuration, domain management, and zone files.
61 articles
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Wildcard DNS Records and Their Use Cases
Practical guide to wildcard featuring real-world examples, performance tuning tips, and security best practices.
6 views
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Setting Up Pi-hole as Network DNS Filter
Practical guide to pi-hole featuring real-world examples, performance tuning tips, and security best practices.
6 views
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CoreDNS: Flexible DNS Server for Modern Infrastructure
Guide to deploying CoreDNS as a flexible DNS server with plugin-based configuration for authoritative zones, caching, DoH/DoT, and Kubernetes integration.
348 views
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Setting Up DNS over HTTPS (DoH)
Guide to setting up DNS over HTTPS (DoH) for encrypted DNS resolution, covering client configuration, server deployment with CoreDNS and Nginx, and testing.
232 views
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DNS over TLS with Unbound
Guide to setting up DNS over TLS with Unbound as both a client (forwarding to encrypted upstream) and server (accepting encrypted queries), with DNSSEC validation.
328 views
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GeoDNS: Location-Based DNS Routing
Guide to implementing GeoDNS for location-based DNS routing with PowerDNS GeoIP, BIND views, and cloud DNS services for geographic load distribution.
415 views
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Migrating DNS Zones with AXFR Zone Transfers
Guide to DNS zone migration using AXFR zone transfers with TSIG authentication, covering BIND and PowerDNS configuration and provider migration workflows.
273 views
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Secondary DNS Server for Redundancy
Guide to setting up secondary DNS servers for redundancy using BIND, NSD, and cloud DNS providers with zone transfer configuration and testing.
245 views
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CAA DNS Records and Certificate Authorities
Guide to CAA DNS records for controlling SSL/TLS certificate issuance, with configurations for popular CAs, subdomain inheritance, and troubleshooting.
244 views
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Let's Encrypt DNS-01 Challenge for Wildcard Certificates
Guide to obtaining Let's Encrypt wildcard certificates using DNS-01 challenges with automated DNS provider plugins for Cloudflare, Route 53, and acme.sh.
361 views
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Debugging DNS with dig +trace
Practical guide to DNS debugging with dig +trace, covering resolution tracing, delegation verification, DNSSEC validation, and batch DNS testing scripts.
595 views
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dnsmasq: Local Caching DNS and DHCP
Guide to dnsmasq for local DNS caching, custom DNS entries, DHCP, split DNS, and development environment DNS configuration.
612 views
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Understanding DNS TTL Values and Caching
Complete guide to DNS TTL values, covering recommended settings for different record types, migration strategies, failover configuration, and caching behavior.
578 views
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Dynamic DNS with TSIG Keys
Guide to Dynamic DNS with TSIG key authentication using BIND and nsupdate, with automated update scripts, per-host keys, and PowerDNS API updates.
403 views
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DANE: DNS-Based Authentication for Email TLS
Guide to implementing DANE for email TLS authentication using DNSSEC-signed TLSA records, covering Postfix configuration, certificate pinning, and renewal handling.
270 views
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Monitoring DNS Query Logs for Security
Guide to DNS query log monitoring for security, covering log configuration, tunneling detection, malware C2 identification, data exfiltration alerts, and DNS blocklists.
456 views
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Building a DNS Failover System
Guide to building DNS failover systems with health checks, covering self-hosted DDNS failover, AWS Route 53, and Cloudflare load balancing configurations.
512 views
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Migrating DNS Zones Between Providers
Step-by-step tutorial for migration on Ubuntu/Debian servers, with practical code examples and troubleshooting tips.
6 views
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Running a Private DNS Resolver with Unbound
A comprehensive guide to unbound covering installation, configuration, and optimization for Linux VPS environments.
5 views
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DNS Load Balancing with Round Robin and Weighted Records
Everything you need to know about load-balancing for your VPS, from initial setup to production-ready configuration with round-robin.
5 views
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Troubleshooting DNS Propagation Issues
Everything you need to know about propagation for your VPS, from initial setup to production-ready configuration with troubleshooting.
6 views
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How to Set Up Split-Horizon DNS
How to Set Up Split-Horizon DNS
Split-horizon DNS (also called split-brain DNS) allows you to return different DNS query results depending on the source of the request. This is commonly us
28 views
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How to Configure DNSSEC for Your Domain
How to Configure DNSSEC for Your Domain
DNSSEC (Domain Name System Security Extensions) adds a layer of authentication to DNS responses by digitally signing records. This prevents attacker
29 views
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How to Set Up Dynamic DNS on Your Breeze
How to Set Up Dynamic DNS on Your Breeze
Dynamic DNS (DDNS) automatically updates DNS records when your IP address changes. While your Breeze has a static IP, you may need DDNS for home la
27 views
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How to Set Up PowerDNS Authoritative Server
Setting Up PowerDNS Authoritative Server PowerDNS is a high-performance, open-source DNS server that supports multiple backends including MySQL, PostgreSQL, ...
29 views
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How to Configure Split-Horizon DNS on Linux
Configuring Split-Horizon DNS on Linux Split-horizon DNS (also called split-brain DNS) returns different answers depending on the source of the query. This i...
28 views
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How to Set Up DNSSEC on Your Domain
Setting Up DNSSEC on Your Domain DNSSEC adds cryptographic signatures to DNS records, protecting against cache poisoning and man-in-the-middle attacks. Enabl...
25 views
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How to Set Up Dynamic DNS with ddclient
Setting Up Dynamic DNS with ddclient Dynamic DNS automatically updates your DNS records when your IP address changes. This is essential if your Breeze or hom...
25 views
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Reverse DNS PTR Record Setup Guide
Everything you need to know about reverse-dns for your VPS, from initial setup to production-ready configuration with ptr.
5 views
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How to Use dig and nslookup for DNS Troubleshooting
138 views
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How to Set Up a Wildcard DNS Record
214 views
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Understanding Cloudflare DNS and Proxy Mode
35 views
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How to Transfer a Domain to a New Registrar
195 views
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How to Set Up DNS for Email with Google Workspace or Microsoft 365
170 views
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Troubleshooting DNS Propagation Issues
67 views
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Understanding DNS Record Types: A Complete Reference
204 views
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How to Set Up a Private DNS Server with BIND9
77 views
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Setting Up Reverse DNS (PTR Records) for Your VPS
45 views
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Transferring a Domain to a New Registrar
27 views
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Using Cloudflare DNS with Your Domain
28 views
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Setting Up Subdomain DNS Records
31 views
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How DNS Propagation Works
28 views
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DNS Record Types Explained
30 views
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Setting Up Reverse DNS for Your Server
28 views
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How to Configure SPF DKIM and DMARC
32 views
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Running a Local DNS Resolver with Unbound
30 views
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Managing DNS Zones with BIND9
29 views
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Understanding DNS Record Types
DNS records tell the internet where to find your services. Here are the most common types.A RecordMaps a domain to an IPv4 address.example.com A 198.48.63.241AA...
396 views
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How to Point a Domain to Your Breeze
Connect your custom domain to your VPS in a few simple steps.Step 1: Get Your IPFind your Breeze's IP address in the portal under Breezes → [Your Server].S...
299 views
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How to Use Cloudflare DNS with Your Breeze
Cloudflare provides free DNS hosting, DDoS protection, and CDN caching.SetupCreate a free Cloudflare accountAdd your domain to CloudflareCloudflare will scan yo...
469 views
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How to Set Up BIND DNS Server
Run your own authoritative DNS server with BIND.Installapt install bind9 bind9-utils -yConfigure a ZoneEdit /etc/bind/named.conf.local:zone "example.com" {\n ty...
91 views
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How to Check DNS Propagation
After changing DNS records, verify they've propagated globally.Command Line# Query specific DNS server\ndig @8.8.8.8 example.com\ndig @1.1.1.1 example.com\n\n# ...
420 views
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Understanding DNS Caching and TTL Values
A comprehensive guide to caching covering installation, configuration, and optimization for Linux VPS environments.
4 views
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PowerDNS Authoritative Server Setup
Step-by-step tutorial for powerdns on Ubuntu/Debian servers, with practical code examples and troubleshooting tips.
5 views
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CoreDNS Configuration for Kubernetes
A comprehensive guide to coredns covering installation, configuration, and optimization for Linux VPS environments.
5 views
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DNS Failover Configuration for High Availability
Everything you need to know about failover for your VPS, from initial setup to production-ready configuration with ha.
5 views
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Understanding DNS Record Types: A Complete Guide
Learn how to set up and configure dns on your VPS with step-by-step instructions, including records and best practices for production environments.
5 views
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Configuring Split-Horizon DNS on Linux
A comprehensive guide to split-horizon covering installation, configuration, and optimization for Linux VPS environments.
5 views
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DNSSEC: What It Is and How to Enable It
DNSSEC (DNS Security Extensions) adds cryptographic signatures to DNS records, preventing attackers from forging DNS responses.
740 views
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Setting Up DNSSEC for Domain Security
A comprehensive guide to dnssec covering installation, configuration, and optimization for Linux VPS environments.
5 views
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DNS over HTTPS with Cloudflared
Learn how to set up and configure doh on your VPS with step-by-step instructions, including cloudflared and best practices for production environments.
6 views