* git
* a dedicated (virtual) machine for your Arvados server with at least 2 cores and 8 GiB of RAM, running a "supported Arvados distribution":{{site.baseurl}}/install/install-manual-prerequisites.html#supportedlinux
* at least one DNS hostname that resolves to the IP address of your Arvados server
-* ports 443, 9443-9445, 11002, 14202, 18002, 35101 need to be reachable from your client (configurable, see below)
+* ports 443, 8800-8805 need to be reachable from your client (configurable, see below)
* port 80 needs to be reachable from everywhere on the internet (only when using "Let's Encrypt":#lets-encrypt)
* one or more SSL certificates matching the hostname(s) in use (only when using "bring your own certificate(s)":#bring-your-own)