Categories

Networking

Nov 04, 2025

Docker: Communicating Between Containers Using Host Ports Without Network Sharing

Discover how to enable communication between Docker containers on different networks using host.docker.internal to access host ports.

Apr 23, 2025

Understanding the DNS Resolver Architecture in Ubuntu

This post explains the DNS resolver architecture based on systemd-resolved in Ubuntu, detailing resolv.conf settings and the key principles of network troubleshooting.