In a content-addressable network your computer
seeds the content rather than
serves it. You do not need a properly managed server for that. It does not matter whether the original node is accessible, information can be retrieved as long as it is available somewhere in the network.
In IPFS, if you need to immediately ensure availability of your content, you can request it via a public gateway to force it into the gateways cache. Then the gateway will continue to seed your data even if your node goes offline.
