In such cases -- for example, a site which is not reachable from the internet, where some data is world-readable from Arvados's perspective but is intended to be available only to users within the local network -- the downstream proxy should configured to return 401 for all paths beginning with "/c="
{% include 'notebox_end' %}
+h3. Configure filesystem cache size
+
+Keep-web stores copies of recently accessed data blocks in @/var/cache/arvados/keep@. The cache size defaults to 10% of the size of the filesystem where that directory is located (typically @/var@) and can be customized with the @DiskCacheSize@ config entry.
+
+<notextile>
+<pre><code> Collections:
+ WebDAVCache:
+ DiskCacheSize: 20 GiB</code></pre></notextile>
+
{% assign arvados_component = 'keep-web' %}
{% include 'install_packages' %}