# Desktop Client

{% hint style="info" %}
**Good to know:** Before using Peeringhub's ACME Client to request for Stir/Shaken certificate, you must make sure that your OCN is whitelisted in Peeringhub's ACME server by completing the online subscription process. 
{% endhint %}

## ACME Client Download Instruction

Peeringhub's subscribers can download ACME Client via the URL.

Linux Centos version:

> <https://github.com/peeringhub/RHEL-ACME-Cllient>

Windows version:

> <https://github.com/peeringhub/Windows-ACME-Client>