# ddz.dev > Software consulting by Dušan Dželebdžić. I fix broken systems, flaky infrastructure, and slow apps. ## About - [Homepage](https://ddz.dev/) - [About](https://ddz.dev/about/) ## Blog - [The database was fine. The cloud around it wasn't.](https://ddz.dev/blog/azure-managed-postgres-connection/) - [Tailscale SSH fails with "tailnet policy does not permit access"](https://ddz.dev/blog/tailscale-ssh-tailnet-policy/) - [Modernization usually means rewriting everything wrong](https://ddz.dev/blog/modernization-usually-means-rewriting-wrong/) - [NAT Gateway is eating your AWS bill](https://ddz.dev/blog/aws-nat-gateway-bill/) - [WordPress fleets on AWS are rotting from the database up](https://ddz.dev/blog/wordpress-fleets-on-aws/) - [The one setting that stops Microsoft Authenticator spam](https://ddz.dev/blog/microsoft-authenticator-spam-notifications/) - [Your server is running two PHP versions (and one of them is lying)](https://ddz.dev/blog/php-cli-vs-apache-mismatch/) - [Stop all running containers in Docker](https://ddz.dev/blog/docker-stop-all-containers/) - [Why Docker?](https://ddz.dev/blog/why-docker/) ## Projects - [Biro](https://ddz.dev/blog/biro/) - [iOS Utility](https://ddz.dev/blog/ios-utility/) - [Mozgalice](https://ddz.dev/blog/mozgalice/) - [Tempmarks](https://ddz.dev/blog/tempmarks/) ## Contact - Email: hello@ddz.dev - Phone: +1 929 888 7421