diff --git a/lib/philomena/versions.ex b/lib/philomena/versions.ex
new file mode 100644
index 00000000..e37e281c
--- /dev/null
+++ b/lib/philomena/versions.ex
@@ -0,0 +1,104 @@
+defmodule Philomena.Versions do
+  @moduledoc """
+  The Versions context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Philomena.Repo
+
+  alias Philomena.Versions.Version
+
+  @doc """
+  Returns the list of versions.
+
+  ## Examples
+
+      iex> list_versions()
+      [%Version{}, ...]
+
+  """
+  def list_versions do
+    Repo.all(Version)
+  end
+
+  @doc """
+  Gets a single version.
+
+  Raises `Ecto.NoResultsError` if the Version does not exist.
+
+  ## Examples
+
+      iex> get_version!(123)
+      %Version{}
+
+      iex> get_version!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_version!(id), do: Repo.get!(Version, id)
+
+  @doc """
+  Creates a version.
+
+  ## Examples
+
+      iex> create_version(%{field: value})
+      {:ok, %Version{}}
+
+      iex> create_version(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_version(attrs \\ %{}) do
+    %Version{}
+    |> Version.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a version.
+
+  ## Examples
+
+      iex> update_version(version, %{field: new_value})
+      {:ok, %Version{}}
+
+      iex> update_version(version, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_version(%Version{} = version, attrs) do
+    version
+    |> Version.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a Version.
+
+  ## Examples
+
+      iex> delete_version(version)
+      {:ok, %Version{}}
+
+      iex> delete_version(version)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_version(%Version{} = version) do
+    Repo.delete(version)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking version changes.
+
+  ## Examples
+
+      iex> change_version(version)
+      %Ecto.Changeset{source: %Version{}}
+
+  """
+  def change_version(%Version{} = version) do
+    Version.changeset(version, %{})
+  end
+end
diff --git a/lib/philomena/versions/version.ex b/lib/philomena/versions/version.ex
new file mode 100644
index 00000000..a5e6988e
--- /dev/null
+++ b/lib/philomena/versions/version.ex
@@ -0,0 +1,23 @@
+defmodule Philomena.Versions.Version do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "versions" do
+    field :event, :string
+    field :whodunnit, :string
+    field :object, :string
+
+    # fixme: rails polymorphic relation
+    field :item_id, :integer
+    field :item_type, :string
+
+    timestamps(inserted_at: :created_at, updated_at: false)
+  end
+
+  @doc false
+  def changeset(version, attrs) do
+    version
+    |> cast(attrs, [])
+    |> validate_required([])
+  end
+end
diff --git a/lib/philomena/vpns.ex b/lib/philomena/vpns.ex
new file mode 100644
index 00000000..b24254ec
--- /dev/null
+++ b/lib/philomena/vpns.ex
@@ -0,0 +1,104 @@
+defmodule Philomena.Vpns do
+  @moduledoc """
+  The Vpns context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Philomena.Repo
+
+  alias Philomena.Vpns.Vpn
+
+  @doc """
+  Returns the list of vpns.
+
+  ## Examples
+
+      iex> list_vpns()
+      [%Vpn{}, ...]
+
+  """
+  def list_vpns do
+    Repo.all(Vpn)
+  end
+
+  @doc """
+  Gets a single vpn.
+
+  Raises `Ecto.NoResultsError` if the Vpn does not exist.
+
+  ## Examples
+
+      iex> get_vpn!(123)
+      %Vpn{}
+
+      iex> get_vpn!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_vpn!(id), do: Repo.get!(Vpn, id)
+
+  @doc """
+  Creates a vpn.
+
+  ## Examples
+
+      iex> create_vpn(%{field: value})
+      {:ok, %Vpn{}}
+
+      iex> create_vpn(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_vpn(attrs \\ %{}) do
+    %Vpn{}
+    |> Vpn.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a vpn.
+
+  ## Examples
+
+      iex> update_vpn(vpn, %{field: new_value})
+      {:ok, %Vpn{}}
+
+      iex> update_vpn(vpn, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_vpn(%Vpn{} = vpn, attrs) do
+    vpn
+    |> Vpn.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a Vpn.
+
+  ## Examples
+
+      iex> delete_vpn(vpn)
+      {:ok, %Vpn{}}
+
+      iex> delete_vpn(vpn)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_vpn(%Vpn{} = vpn) do
+    Repo.delete(vpn)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking vpn changes.
+
+  ## Examples
+
+      iex> change_vpn(vpn)
+      %Ecto.Changeset{source: %Vpn{}}
+
+  """
+  def change_vpn(%Vpn{} = vpn) do
+    Vpn.changeset(vpn, %{})
+  end
+end
diff --git a/lib/philomena/vpns/vpn.ex b/lib/philomena/vpns/vpn.ex
new file mode 100644
index 00000000..6ce9fdd9
--- /dev/null
+++ b/lib/philomena/vpns/vpn.ex
@@ -0,0 +1,17 @@
+defmodule Philomena.Vpns.Vpn do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key false
+
+  schema "vpns" do
+    field :ip, EctoNetwork.INET
+  end
+
+  @doc false
+  def changeset(vpn, attrs) do
+    vpn
+    |> cast(attrs, [])
+    |> validate_required([])
+  end
+end
diff --git a/test/philomena/versions_test.exs b/test/philomena/versions_test.exs
new file mode 100644
index 00000000..6432b7c8
--- /dev/null
+++ b/test/philomena/versions_test.exs
@@ -0,0 +1,62 @@
+defmodule Philomena.VersionsTest do
+  use Philomena.DataCase
+
+  alias Philomena.Versions
+
+  describe "versions" do
+    alias Philomena.Versions.Version
+
+    @valid_attrs %{}
+    @update_attrs %{}
+    @invalid_attrs %{}
+
+    def version_fixture(attrs \\ %{}) do
+      {:ok, version} =
+        attrs
+        |> Enum.into(@valid_attrs)
+        |> Versions.create_version()
+
+      version
+    end
+
+    test "list_versions/0 returns all versions" do
+      version = version_fixture()
+      assert Versions.list_versions() == [version]
+    end
+
+    test "get_version!/1 returns the version with given id" do
+      version = version_fixture()
+      assert Versions.get_version!(version.id) == version
+    end
+
+    test "create_version/1 with valid data creates a version" do
+      assert {:ok, %Version{} = version} = Versions.create_version(@valid_attrs)
+    end
+
+    test "create_version/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Versions.create_version(@invalid_attrs)
+    end
+
+    test "update_version/2 with valid data updates the version" do
+      version = version_fixture()
+      assert {:ok, %Version{} = version} = Versions.update_version(version, @update_attrs)
+    end
+
+    test "update_version/2 with invalid data returns error changeset" do
+      version = version_fixture()
+      assert {:error, %Ecto.Changeset{}} = Versions.update_version(version, @invalid_attrs)
+      assert version == Versions.get_version!(version.id)
+    end
+
+    test "delete_version/1 deletes the version" do
+      version = version_fixture()
+      assert {:ok, %Version{}} = Versions.delete_version(version)
+      assert_raise Ecto.NoResultsError, fn -> Versions.get_version!(version.id) end
+    end
+
+    test "change_version/1 returns a version changeset" do
+      version = version_fixture()
+      assert %Ecto.Changeset{} = Versions.change_version(version)
+    end
+  end
+end
diff --git a/test/philomena/vpns_test.exs b/test/philomena/vpns_test.exs
new file mode 100644
index 00000000..7a76b2d4
--- /dev/null
+++ b/test/philomena/vpns_test.exs
@@ -0,0 +1,62 @@
+defmodule Philomena.VpnsTest do
+  use Philomena.DataCase
+
+  alias Philomena.Vpns
+
+  describe "vpns" do
+    alias Philomena.Vpns.Vpn
+
+    @valid_attrs %{}
+    @update_attrs %{}
+    @invalid_attrs %{}
+
+    def vpn_fixture(attrs \\ %{}) do
+      {:ok, vpn} =
+        attrs
+        |> Enum.into(@valid_attrs)
+        |> Vpns.create_vpn()
+
+      vpn
+    end
+
+    test "list_vpns/0 returns all vpns" do
+      vpn = vpn_fixture()
+      assert Vpns.list_vpns() == [vpn]
+    end
+
+    test "get_vpn!/1 returns the vpn with given id" do
+      vpn = vpn_fixture()
+      assert Vpns.get_vpn!(vpn.id) == vpn
+    end
+
+    test "create_vpn/1 with valid data creates a vpn" do
+      assert {:ok, %Vpn{} = vpn} = Vpns.create_vpn(@valid_attrs)
+    end
+
+    test "create_vpn/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Vpns.create_vpn(@invalid_attrs)
+    end
+
+    test "update_vpn/2 with valid data updates the vpn" do
+      vpn = vpn_fixture()
+      assert {:ok, %Vpn{} = vpn} = Vpns.update_vpn(vpn, @update_attrs)
+    end
+
+    test "update_vpn/2 with invalid data returns error changeset" do
+      vpn = vpn_fixture()
+      assert {:error, %Ecto.Changeset{}} = Vpns.update_vpn(vpn, @invalid_attrs)
+      assert vpn == Vpns.get_vpn!(vpn.id)
+    end
+
+    test "delete_vpn/1 deletes the vpn" do
+      vpn = vpn_fixture()
+      assert {:ok, %Vpn{}} = Vpns.delete_vpn(vpn)
+      assert_raise Ecto.NoResultsError, fn -> Vpns.get_vpn!(vpn.id) end
+    end
+
+    test "change_vpn/1 returns a vpn changeset" do
+      vpn = vpn_fixture()
+      assert %Ecto.Changeset{} = Vpns.change_vpn(vpn)
+    end
+  end
+end