--- title: "#multi-cloud articles | Hashnode" description: "Explore 109 articles tagged #multi-cloud on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/multi-cloud" --- Tag # #multi-cloud 109 posts · 0 followers [OneLifeVibe](https://hashnode.com/@onelifevibe) · [5h ago](https://hashnode.com/posts/stop-shipping-keys-between-clouds-workload-identity-without-long-lived-secrets/6af4f8fbff30fc952bc285b2) ### [Stop Shipping Keys Between Clouds: Workload Identity Without Long-Lived Secrets](https://onelifevibe.hashnode.dev/stop-shipping-keys-between-clouds-workload-identity-without-long-lived-secrets?utm_source=hashnode&utm_medium=feed) A service in one cloud needs to call a service in another. The fastest way to make that work is also the one that ages worst: create a long-lived access key in the destination cloud, store it as a sec 7 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/stop-shipping-keys-between-clouds-workload-identity-without-long-lived-secrets?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [16h ago](https://hashnode.com/posts/the-port-ran-out-before-the-cpu-did-snat-exhaustion-in-multi-cloud-egress/6af462bdfc173611c08f39a8) ### [The Port Ran Out Before the CPU Did: SNAT Exhaustion in Multi-Cloud Egress](https://onelifevibe.hashnode.dev/the-port-ran-out-before-the-cpu-did-snat-exhaustion-in-multi-cloud-egress?utm_source=hashnode&utm_medium=feed) The service was healthy. CPU was low, memory was fine, the database had headroom, and the deploy had changed nothing in the network. Yet cross-cloud calls began failing at random — a few percent at fi 7 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/the-port-ran-out-before-the-cpu-did-snat-exhaustion-in-multi-cloud-egress?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [21h ago](https://hashnode.com/posts/five-minutes-apart-is-a-different-estate-clock-skew-across-clouds/6af41d5c56351ae598f7175c) ### [Five Minutes Apart Is a Different Estate: Clock Skew Across Clouds](https://onelifevibe.hashnode.dev/five-minutes-apart-is-a-different-estate-clock-skew-across-clouds?utm_source=hashnode&utm_medium=feed) Every machine in a multi-cloud estate agrees, in principle, that time exists. In practice, they often disagree about what time it is — by seconds, sometimes by minutes — and that quiet disagreement su 7 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/five-minutes-apart-is-a-different-estate-clock-skew-across-clouds?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [1d ago](https://hashnode.com/posts/the-retry-storm-is-a-networking-event-how-cross-cloud-retries-amplify-a-small-outage/6af3e6352c070052fa7297e1) ### [The Retry Storm Is a Networking Event: How Cross-Cloud Retries Amplify a Small Outage](https://onelifevibe.hashnode.dev/the-retry-storm-is-a-networking-event-how-cross-cloud-retries-amplify-a-small-outage?utm_source=hashnode&utm_medium=feed) A dependency in another cloud slows down for ninety seconds. Latency climbs, a few requests time out, and then the dependency recovers. In a single-cloud system, that is often the end of the story. In 6 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/the-retry-storm-is-a-networking-event-how-cross-cloud-retries-amplify-a-small-outage?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [1d ago](https://hashnode.com/posts/bgp-will-pick-the-path-you-didn-t-test-route-preference-in-multi-cloud-networks/6af33345e865095e5ffa0200) ### [BGP Will Pick the Path You Didn't Test: Route Preference in Multi-Cloud Networks](https://onelifevibe.hashnode.dev/bgp-will-pick-the-path-you-didn-t-test-route-preference-in-multi-cloud-networks?utm_source=hashnode&utm_medium=feed) Most multi-cloud networks have more than one path between the same two places, on purpose. A private interconnect for everyday traffic, a VPN over the internet as backup, sometimes a second interconne 6 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/bgp-will-pick-the-path-you-didn-t-test-route-preference-in-multi-cloud-networks?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [1d ago](https://hashnode.com/posts/one-name-three-different-answers-split-horizon-dns-in-a-multi-cloud-estate/6af3128165c108618a3a512c) ### [One Name, Three Different Answers: Split-Horizon DNS in a Multi-Cloud Estate](https://onelifevibe.hashnode.dev/one-name-three-different-answers-split-horizon-dns-in-a-multi-cloud-estate?utm_source=hashnode&utm_medium=feed) 1\. The same name should not mean the same address everywhere Ask three engineers what api.internal resolves to and, in a healthy multi-cloud estate, the honest answer is: it depends where the question 6 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/one-name-three-different-answers-split-horizon-dns-in-a-multi-cloud-estate?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [1d ago](https://hashnode.com/posts/ai-agents-need-network-boundaries-too-controlling-tool-calls-that-cross-clouds/6af2ba4e8b0328adeb3fe684) ### [AI Agents Need Network Boundaries Too: Controlling Tool Calls That Cross Clouds](https://onelifevibe.hashnode.dev/ai-agents-need-network-boundaries-too-controlling-tool-calls-that-cross-clouds?utm_source=hashnode&utm_medium=feed) Most teams secure an AI agent the way they secure a chatbot: review the prompts, filter the outputs, and watch what users ask it. That misses the part of the system most likely to cause a real inciden 8 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/ai-agents-need-network-boundaries-too-controlling-tool-calls-that-cross-clouds?utm_source=hashnode&utm_medium=feed) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [2d ago](https://hashnode.com/posts/the-packets-are-too-big-mtu-and-encapsulation-overhead-in-multi-cloud-networks/6af2243166494ef3ed618980) ### [The Packets Are Too Big: MTU and Encapsulation Overhead in Multi-Cloud Networks](https://onelifevibe.hashnode.dev/the-packets-are-too-big-mtu-and-encapsulation-overhead-in-multi-cloud-networks?utm_source=hashnode&utm_medium=feed) Every multi-cloud network works in the demo. Small requests cross between clouds, health checks pass, a test file copies cleanly, and the design gets signed off. Then production traffic arrives — a da 7 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/the-packets-are-too-big-mtu-and-encapsulation-overhead-in-multi-cloud-networks?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/the-packets-are-too-big-mtu-and-encapsulation-overhead-in-multi-cloud-networks/6af2243166494ef3ed618980) [OneLifeVibe](https://hashnode.com/@onelifevibe) · [3d ago](https://hashnode.com/posts/when-both-clouds-picked-10-0-0-0-16-fixing-overlapping-address-space-in-multi-cloud-networks/6af0f1f39b9708597300cc1e) ### [When Both Clouds Picked 10.0.0.0/16: Fixing Overlapping Address Space in Multi-Cloud Networks](https://onelifevibe.hashnode.dev/when-both-clouds-picked-10-0-0-0-16-fixing-overlapping-address-space-in-multi-cloud-networks?utm_source=hashnode&utm_medium=feed) Almost every multi-cloud estate has the same quiet defect hiding in it. The first cloud was built on 10.0.0.0/16 because that is what the quick-start template suggested. The second cloud, acquired lat 7 min read · [onelifevibe.hashnode.dev](https://onelifevibe.hashnode.dev/when-both-clouds-picked-10-0-0-0-16-fixing-overlapping-address-space-in-multi-cloud-networks?utm_source=hashnode&utm_medium=feed) [CloudSkill Consulting LLC](https://hashnode.com/@cloudskillconsulting) · [Oct 16](https://hashnode.com/posts/simple-multi-cloud-aws-azure-without-overspending/6ad2b4afa305ffe669185e6e) ### [How to Plan a Simple Multi-Cloud Setup on AWS and Azure Without Overspending](https://cloudskillconsulting.hashnode.dev/simple-multi-cloud-aws-azure-without-overspending?utm_source=hashnode&utm_medium=feed) Five shared rules, the native tools on each side, and the mistakes that quietly raise the bill 8 min read · [cloudskillconsulting.hashnode.dev](https://cloudskillconsulting.hashnode.dev/simple-multi-cloud-aws-azure-without-overspending?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/simple-multi-cloud-aws-azure-without-overspending/6ad2b4afa305ffe669185e6e)