---
title: "Temporary directory - PKI Express"
description: "Changing the temporary directory PKI Express uses to cache CRLs and CA certificates, with the defaults on Windows and Linux."
canonical: "https://docs.lacunasoftware.com/en-us/articles/pki-express/config/temp-dir"
locale: "en"
product: "PKI Express"
last_updated: "2026-07-14"
---

# Temporary directory - PKI Express

PKI Express uses a temporary directory to cache Certificate Revocation Lists (CRLs), Certification Authoriry (CA) certificates, among other artifacts.

By default, the temporary directory used by PKI Express is:

* On Windows: `%TEMP%`
* On Linux: `/tmp`

To change the temporary directory:

```sh
pkie config --set tempDir=path
```

> **Note**
>
> The commands on this article require administrative privileges. On Linux, you may need to use `sudo` or, on Windows,
> a command prompt with elevated privileges.

The directory **must exist and be writeable** by your user and also by the user used to run the web application (on Linux, this usually is the `www-data` user).