image::images/pve-software-stack.svg["Proxmox Software Stack",align="center"]
+[[intro_central_management]]
Central Management
------------------
{pve} uses a Linux kernel and is based on the Debian GNU/Linux
Distribution. The source code of {pve} is released under the
-http://www.gnu.org/licenses/agpl-3.0.html[GNU Affero General Public
+https://www.gnu.org/licenses/agpl-3.0.html[GNU Affero General Public
License, version 3]. This means that you are free to inspect the
source code at any time or contribute to the project yourself.
include::getting-help.adoc[]
+[[intro_project_history]]
Project History
---------------
was simple (server generated web page).
But we quickly developed new features using the
-http://corosync.github.io/corosync/[Corosync] cluster stack, and the
+https://corosync.github.io/corosync/[Corosync] cluster stack, and the
introduction of the new Proxmox cluster file system (pmxcfs) was a big
step forward, because it completely hides the cluster complexity from
the user. Managing a cluster of 16 nodes is as simple as managing a
The support for various storage types is another big task. Notably,
{pve} was the first distribution to ship ZFS on Linux by default in
2014. Another milestone was the ability to run and manage
-http://ceph.com/[Ceph] storage on the hypervisor nodes. Such setups
+https://ceph.com/[Ceph] storage on the hypervisor nodes. Such setups
are extremely cost effective.
When we started we were among the first companies providing