Migrate new file structure to crux (#435)

* order workflows and add submodule

* rename gitmodules file

* delete docs/.gitignore

* add vyos custom linter

* correct __pycache__ in gitignore

* add test-coverage.py

* move draw.io folder

* arrange changelog, install history and about

* arrange: firewall

* arrange: highavailability

* arrange: loadbalancing

* arrange: nat

* arrange: services

* sort configexamples and configuration interfaces

* wireles: rename wireless

* rearrange: Protocols and Policy

* rearrange: Firewall and Zone Policy

* rearrange: Interfaces

* rearrange: Interfaces

* rearrange: dynamic DNS

* hostinfo: add page to index

* rearrange: appendix

* venv: add Pipfile

* rearrange: contributing

* index: remove debugging

* rearrange: fix all figure and refs

* rearrange: commandtree

* fix: cli, openvpn, install headline level

* protocols: change headline

* firewall: move mss clamping

* ip: separate ipv4 and ipv6

* arp: move to static page

* igmp: rename multicast page

* Update to year 2021

1 files changed, 47 insertions, 0 deletions

diff --git a/docs/introducing/history.rst b/docs/introducing/history.rst
new file mode 100644
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+++ b/docs/introducing/history.rst
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+.. _history:
+
+#######
+History
+#######
+
+VyOS is a Linux-based network operating system that provides software-based
+network routing, firewall, and VPN functionality.
+
+The VyOS project was started in late 2013 as a community fork of the
+`GPL <https://en.wikipedia.org/wiki/GNU_General_Public_License>`_ portions of
+Vyatta Core 6.6R1 with the goal of maintaining a free and open source network
+operating system in response to the decision to discontinue the community
+edition of Vyatta. Here everyone loves learning, older managers and new users.
+
+VyOS is primarily based on `Debian GNU/Linux <https://www.debian.org/>`_ and
+the `Quagga <http://www.nongnu.org/quagga/>`_ routing engine. Its configuration
+syntax and :ref:`cli` are loosely derived from Juniper JUNOS as modelled by the
+`XORP project <http://www.xorp.org/>`_, which was the original routing engine
+for Vyatta.
+
+In the 4.0 release of Vyatta, the routing engine was changed to Quagga. As of
+VyOS version 1.2, VyOS now uses `FRRouting <https://frrouting.org/>`_ as the
+routing engine.
+
+How is VyOS different from any other router distributions and platform?
+
+- It's more than just a firewall and VPN, VyOS includes extended routing
+  capabilities like OSPFv2, OSPFv3, BGP, VRRP, and extensive route policy
+  mapping and filtering
+- Unified command line interface in the style of hardware routers.
+- Scriptable CLI
+- Stateful configuration system: prepare changes and commit at once or discard,
+  view previous revisions or rollback to them, archive revisions to remote
+  server and execute hooks at commit time
+- Image-based upgrade: keep multiple versions on the same system and revert to
+  previous image if a problem arises
+- Multiple VPN capabilities: OpenVPN, IPSec, Wireguard, DPMVPN, IKEv2 and more
+- DHCP, TFTP, mDNS repeater, broadcast relay and DNS forwarding support
+- Both IPv4 and IPv6 support
+- Runs on physical and virtual platforms alike: small x86 boards, big servers,
+  KVM, Xen, VMware, Hyper-V, and more
+- Completely free and open source, with documented internal APIs and build
+  procedures
+- Community driven. Patches are welcome and all code, bugs, and nightly builds
+  are publicly accessible
+