diff --git a/app/api/v_sphere/folder.rb b/app/api/v_sphere/folder.rb
index 7fcd7e66..4358846b 100644
--- a/app/api/v_sphere/folder.rb
+++ b/app/api/v_sphere/folder.rb
@@ -15,10 +15,17 @@ def initialize(rbvmomi_folder)
       @folder = rbvmomi_folder
     end
 
-    def subfolders
-      @folder.children.select { |folder_entry| folder_entry.is_a? RbVmomi::VIM::Folder }.map do |each|
+    def parent
+      @folder.parent
+    end
+
+    def subfolders(recursive: false)
+      folders = @folder.children.select { |folder_entry| folder_entry.is_a? RbVmomi::VIM::Folder }.map do |each|
         Folder.new each
       end
+
+      folders += folders.flat_map { |each| each.subfolders recursive: true } if recursive
+      folders
     end
 
     def vms(recursive: true)
diff --git a/app/api/v_sphere/virtual_machine.rb b/app/api/v_sphere/virtual_machine.rb
index 9e1cde9a..3d8233d1 100644
--- a/app/api/v_sphere/virtual_machine.rb
+++ b/app/api/v_sphere/virtual_machine.rb
@@ -96,6 +96,22 @@ def name
       @vm.name
     end
 
+    def full_path
+      path = [name]
+      parent = parent_folder
+      until parent.nil?
+        path << parent.name
+        parent = parent.parent
+      end
+      path.reverse
+    end
+
+    def parent_folder
+      root_folder.subfolders(recursive: true).find do |folder|
+        folder.vms(recursive: false).include? self
+      end
+    end
+
     # Guest OS communication
     def vm_ware_tools?
       tool_status = @vm&.guest&.toolsStatus
diff --git a/app/models/app_setting.rb b/app/models/app_setting.rb
index c1ded53e..4db78c00 100644
--- a/app/models/app_setting.rb
+++ b/app/models/app_setting.rb
@@ -16,13 +16,19 @@ class AppSetting < ApplicationRecord
 
   after_commit :apply_settings, on: :update
 
+  def self.clear_cache
+    @instance = nil
+  end
+
   def self.instance
-    find(1)
+    @instance = find(1) if @instance.nil?
+    @instance
   end
 
   private
 
   def apply_settings
+    self.class.clear_cache
     apply_mail_settings
     GitHelper.reset
   end
diff --git a/app/models/server.rb b/app/models/server.rb
index c1f307f2..6737e10f 100644
--- a/app/models/server.rb
+++ b/app/models/server.rb
@@ -1,5 +1,9 @@
 # frozen_string_literal: true
 
+# Part of Ruby stdlib, used for IP regexes
+# https://www.rubydoc.info/stdlib/resolv/Resolv
+require 'resolv'
+
 class Server < ApplicationRecord
   belongs_to :responsible, class_name: :User
   validates :name, :cpu_cores, :ram_gb, :storage_gb, :mac_address, :fqdn, :responsible_id, presence: true
@@ -12,21 +16,15 @@ class Server < ApplicationRecord
   validates :storage_gb, numericality: { greater_than: 0 }
 
   validates :ipv4_address, format: {
-    with: /(^$)|((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/,
-    message: 'Not a valid IPv4 address'
+    with: Resolv::IPv4::Regex,
+    message: 'is not a valid IPv4 address'
   }
   validates :ipv6_address, format: {
-    with: /(^$)|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:)
-      {1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}
-        (:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}
-        (:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)
-        |fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}
-        [0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|
-        (2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))/x,
-    message: 'Not a valid IPv6 address'
+    with: Resolv::IPv6::Regex,
+    message: 'is not a valid IPv6 address'
   }
   validates :mac_address, format: {
     with: /([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})/,
-    message: 'Not a valid MAC address'
+    message: 'is not a valid MAC address'
   }
 end
diff --git a/app/views/vms/show.html.erb b/app/views/vms/show.html.erb
index 04847148..efc2b3c4 100644
--- a/app/views/vms/show.html.erb
+++ b/app/views/vms/show.html.erb
@@ -7,7 +7,13 @@
 end %>
 
 <div class="container mb-3 pl-0 pr-0 clearfix">
-  <h1 class="mb-0"><%= @vm.name unless @vm.nil? %></h1>
+  <ol class="breadcrumb" aria-label="The Virtual Machines full path">
+    <% @vm.full_path.each do |path_entry| %>
+      <li class="breadcrumb-item"><%= path_entry %></li>
+    <% end %>
+  </ol>
+
+  <h1 class="mb-0"><%= @vm.name %></h1>
   <% os = @vm.summary&.config&.guestFullName %>
   <% unless os.nil? || os.downcase.include?('other') %>
     <div class="text-right align-bottom pt-2"><h2 class="mb-0"><%= "(#{os})"%></h2></div>
@@ -92,7 +98,7 @@ end %>
 
   @hardware = {'IP Address' => @vm.ip,
                'DNS' => @vm.dns,
-               'Heartbeat Status' => @vm.guest_heartbeat_status }
+               'Heartbeat Status' => @vm.guest_heartbeat_status}
   %>
 
 <div class ="table-active container pt-3 pb-3 mb-3 text-center" style="width: 100%">
diff --git a/spec/api/v_sphere_api_mocker.rb b/spec/api/v_sphere_api_mocker.rb
index 21878cc4..f96d41ec 100644
--- a/spec/api/v_sphere_api_mocker.rb
+++ b/spec/api/v_sphere_api_mocker.rb
@@ -42,8 +42,9 @@ def vim_folder_mock(name, subfolders, vms, clusters) # rubocop:disable Metrics/A
   children = subfolders + vms + clusters
   children = extract_vim_objects children
   folder = double
-  allow(folder).to receive(:name).and_return(name)
-  allow(folder).to receive(:children).and_return(children)
+  allow(folder).to receive(:name).and_return name
+  allow(folder).to receive(:parent).and_return nil
+  allow(folder).to receive(:children).and_return children
   allow(folder).to receive(:is_a?).and_return false
   allow(folder).to receive(:is_a?).with(RbVmomi::VIM::Folder).and_return true
   allow(folder).to receive_message_chain(:MoveIntoFolder_Task, :wait_for_completion)