Docker
How to Use Docker Networks and Container DNS the Safe Way
Understand Docker networks and container DNS: why the default bridge has none, how user defined networks resolve names, aliases, and reaching the host.
6 min read
Tag
dns
2 posts
Debugging
How to Debug DNS and TLS Problems From the Terminal
Debug DNS and TLS problems from the terminal: dig, getent and resolvectl for names, openssl s_client and curl -v for handshakes, with a layered approach.
6 min read