Dns on Linux Café

Resolving DNS Troubles at Home: A systemd-resolved and dnsmasq Setup Gone Wrong

Tue, 07 Jul 2026 09:00:33 +0200

Introduction to DNS Troubles

I’ve been running my homelab for years, and one thing that still gets me is DNS troubles. Last year, I decided to set up systemd-resolved and dnsmasq to manage my home network’s DNS. The idea was to use systemd-resolved as the primary resolver and dnsmasq as a caching layer to improve performance. Sounds simple, but it didn’t quite work out that way.

Setting Up systemd-resolved

To start, I enabled systemd-resolved on my Ubuntu-based server. This involved editing the /etc/systemd/resolved.conf file to set the DNS servers and domains. I opted for Cloudflare’s DNS servers - they’re known for being fast and secure.

Taming systemd-resolved: My Journey to Reliable DNS Resolution at Home

Wed, 10 Jun 2026 08:31:17 +0200

Introduction to systemd-resolved

I’ve been using Linux for years, and I’ve had my fair share of struggles with DNS resolution. Recently, I decided to take a closer look at systemd-resolved, the DNS resolver component of systemd. I was looking for a reliable way to resolve DNS at home, and I’m happy to share what I’ve learned.

What is systemd-resolved?

systemd-resolved is a system service that provides DNS resolution for Linux systems. It’s designed to replace traditional DNS resolvers like bind and dnsmasq. One of the key benefits of systemd-resolved is its integration with the rest of the systemd ecosystem, making it easy to manage and configure. Don’t bother with bind and dnsmasq unless you have a specific reason to - systemd-resolved is a solid choice for most users.

Troubleshooting DNS Resolution Issues in My Homelab with Unbound and systemd-resolved

Sat, 06 Jun 2026 09:40:24 +0200

Introduction to DNS Resolution Issues

I’ve been running my own homelab for years, and like many of you, I’ve had my fair share of DNS resolution issues. Last year, I decided to ditch my router as a DNS server and set up Unbound and systemd-resolved on my Linux machines instead. The goal was to improve DNS resolution speed and security, but as you can probably guess, it wasn’t all smooth sailing.

DNS and DNS Servers for Linux

Sun, 26 Jan 2025 00:00:00 +0000

The Domain Name System (DNS) is a fundamental component of the internet. It translates human-readable domain names like example.com into IP addresses such as 93.184.216.34, allowing users to connect to websites and services without memorizing numerical addresses. For Linux users, understanding DNS and managing DNS servers is essential for troubleshooting, configuring networks, and ensuring smooth internet connectivity.

What is DNS?

DNS functions as the internet’s phonebook. When you type a domain name into a browser, DNS resolves it into the corresponding IP address so your computer can establish a connection. This resolution process involves several DNS components: