---
agentTools:
  projectIndex: https://docs.project-fifo.net/llms.txt
---

# FiFo Zlogin

The **fifo\_zlogin** service, is a new minimalistic service introduced with the 0.7.1 release. It is a service that compliments and enhances the Chunter service and is now a required dependency for running **Chunter**.

One of the primary purposes of the FiFo Zlogin is for **Docker** support. Some Docker commands require that a STDIn and STDOut to the zone remain opened - if that gets closed the whole thing shuts down. This, of course, is **sub-optimal** as we don't want all Docker zones getting shut down every time there is a Chunter update.

To address this problem, a FiFo Zlogin service was introduced to ensure the IO is kept open so that Chunter can be upgraded without IO being affected.​