1 files changed, 126 insertions, 0 deletions
diff --git a/platforms.rst b/platforms.rst
new file mode 100644
index 0000000..880b05b
--- /dev/null
+++ b/platforms.rst
@@ -0,0 +1,126 @@
+.. _platforms:
+
+Supported Platforms
+===================
+
+In general, this version of Kea builds and runs on any POSIX-compliant
+system with a C++ compiler (with C++11 support), the Botan cryptographic library,
+the log4cplus logging library and the Boost system library.
+
+The Kea build has been checked with GCC g++ 4.8.5 and some later versions,
+and Clang 800.0.38 and some later versions.
+
+ISC regularly tests Kea on many operating systems and architectures, but
+lacks the resources to test all of them. Consequently, ISC is only able to
+offer support on a "best-effort" basis for some.
+
+Regularly Tested Platforms
+--------------------------
+
+Kea is officially supported on Alpine, CentOS, Fedora, Ubuntu, Debian,
+and FreeBSD systems. Kea-|release| builds have been tested on:
+
+* Alpine — 3.13, 3.14, 3.15, 3.16
+* CentOS — 7
+* Debian — 9, 10, 11
+* Fedora — 34, 35, 36
+* FreeBSD — 12, 13
+* RHEL — 8, 9
+* Ubuntu — 18.04, 20.04, 22.04
+
+There are currently no plans to port Kea to Windows systems.
+
+Best-Effort
+-----------
+
+The following are platforms on which Kea is known to build and run.
+ISC makes every effort to fix bugs on these platforms, but may be unable to
+do so quickly due to lack of hardware, less familiarity on the part of
+engineering staff, and other constraints.
+
+* FreeBSD — 11
+* macOS — 10.15, 11, 12
+
+Community-Maintained
+--------------------
+
+These systems may not all have the required dependencies for building Kea
+easily available, although it is possible in many cases to compile
+those directly from source. The community and interested parties may wish
+to help with maintenance, and we welcome patch contributions, although we
+cannot guarantee that we will accept them. All contributions are
+assessed against the risk of adverse effect on officially supported
+platforms.
+
+These include platforms past their respective EOL dates, such as:
+
+* Alpine — 3.10 (1 May 2021), 3.11, 3.12
+* CentOS — 6 (30 November 2020), 8 (31 December 2021)
+* Debian — 8 (30 June 2020)
+* Fedora — 31, 32, 33
+* FreeBSD — 10 (31 October 2018)
+* macOS — 10.13, 10.14
+* Ubuntu — 14.04, 18.10, 19.04, 19.10, 21.04
+
+Unsupported Platforms
+---------------------
+
+These are platforms on which versions of Kea since 1.7 are known *not* to build or run:
+
+* Windows (all versions)
+* Windows Server (all versions)
+* Any platform with OpenSSL 1.0.1 or earlier, which does not also have Botan as an alternative
+* Any platform with log4cplus version 1.0.2 or earlier.
+
+.. _required-software:
+
+Required Software at Runtime
+============================
+
+Kea uses various extra software packages which may not be
+provided in the default installation of some operating systems, nor in
+the standard package collections. This required software may need to
+be installed separately. (For the build requirements, also see :ref:`build-requirements`.)
+
+-  Kea supports two cryptographic libraries: Botan and OpenSSL. Only one
+   of them is required to be installed during compilation. Kea uses the
+   Botan library for C++ (https://botan.randombit.net/), version 2.0 or
+   later; support for Botan versions earlier than 2.0 was
+   removed as of Kea 1.7.0. As an alternative to Botan, Kea can
+   use the OpenSSL cryptographic library (https://www.openssl.org/),
+   version 1.0.2 or later.
+
+-  Kea uses the log4cplus C++ logging library
+   (https://sourceforge.net/p/log4cplus/wiki/Home/). It requires log4cplus version
+   1.0.3 or later.
+
+-  Kea requires the Boost system library (https://www.boost.org/).
+   Building with the header-only version of Boost is no longer
+   recommended.
+
+Some optional features of Kea have additional dependencies.
+
+-  To store lease information in a MySQL database, Kea requires
+   MySQL headers and libraries. This is an optional dependency;
+   Kea can be built without MySQL support.
+
+-  To store lease information in a PostgreSQL database, Kea
+   requires PostgreSQL headers and libraries. This is an optional
+   dependency; Kea can be built without PostgreSQL support.
+
+-  Integration with RADIUS is provided in Kea via the hook library
+   available to ISC's paid support customers. Use of this library requires
+   the FreeRADIUS-client library to be present on the system where Kea
+   is running. This is an optional dependency; Kea can be built
+   without RADIUS support.
+
+-  Kea provides a NETCONF interface with the ``kea-netconf`` agent. This Kea module
+   requires Sysrepo software when used. Building Kea with NETCONF support
+   requires many dependencies to be installed, which are described in more
+   detail in :ref:`netconf-install`. This is an optional dependency; Kea can be
+   built without NETCONF support.
+
+-  To sign and verify DNS updates the Kea DDNS server may use GSS-TSIG, which requires
+   MIT Kerberos 5 or Heimdal libraries. The dependencies required to be
+   installed are described in more detail in :ref:`gss-tsig-install`. This is an
+   optional dependency; Kea can be built without GSS-TSIG support.