diff --git a/vars/debian.yml b/vars/debian.yml
index 89804476..8ef4fad4 100644
--- a/vars/debian.yml
+++ b/vars/debian.yml
@@ -52,6 +52,7 @@ nova_compute_packages:
 - genisoimage
 - kpartx
 - multipath-tools
+ - netcat-openbsd
 - nfs-common
 - open-iscsi
 - python3-guestfs
diff --git a/vars/redhat.yml b/vars/redhat.yml
index 94323a9d..a0872b77 100644
--- a/vars/redhat.yml
+++ b/vars/redhat.yml
@@ -51,6 +51,7 @@ nova_compute_packages:
 - dosfstools
 - genisoimage
 - kpartx
+ - nc
 - python-libguestfs
 - sysfsutils
 
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<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://opendev.org/openstack/openstack-ansible-os_nova/commit/1e7f093fee43bd9e46a18d5183a360ffc1c9ac0d.diff">(-&gt;オリジナル)</a>
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<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>