Base
Hardened build
minimal ports, security patches applied at build time
dnsmasq 2.90 on Ubuntu 24.04 LTS
Azure
Networking
dnsmasq, a lightweight caching DNS forwarder plus DHCP and TFTP, resolving safely the moment it boots.
Overview
dnsmasq is a small, widely deployed network infrastructure daemon that combines a caching DNS forwarder, a DHCP server and a TFTP boot server in a single lightweight package. It is a popular choice for local networks, edge sites, labs and container hosts that need name resolution and address assignment without running heavyweight services.
Why the cloudimg image
cloudimg ships dnsmasq hardened, fully patched and configured as a secure caching resolver that answers only local network clients rather than the public internet, so it can never be abused as an open resolver. DHCP and TFTP ship switched off until you enable them for your own network. Paired with a step by step deploy guide and backed by 24/7 support.
Common uses
- Caching DNS forwarding for a local network
- DHCP address assignment for a private subnet
- TFTP and PXE network boot for lab provisioning
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