<html>
  <head>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <p><font face="Calibri">Hi,</font></p>
    <p><font face="Calibri">I found a workaround, runnning '</font><span
        style="color: rgb(0, 0, 0); font-family: monospace, Courier;
        font-size: 17.5px; font-style: normal; font-variant: normal;
        font-weight: normal; letter-spacing: normal; line-height: 28px;
        orphans: auto; text-align: left; text-indent: 0px;
        text-transform: none; white-space: normal; widows: 1;
        word-spacing: 0px; -webkit-text-stroke-width: 0px; display:
        inline !important; float: none; background-color: rgb(249, 249,
        249);">sudo lightdm-gtk-greeter-settings' enables one to disable
        the Sessions and Power Menu's.</span></p>
    <p><span style="color: rgb(0, 0, 0); font-family: monospace,
        Courier; font-size: 17.5px; font-style: normal; font-variant:
        normal; font-weight: normal; letter-spacing: normal;
        line-height: 28px; orphans: auto; text-align: left; text-indent:
        0px; text-transform: none; white-space: normal; widows: 1;
        word-spacing: 0px; -webkit-text-stroke-width: 0px; display:
        inline !important; float: none; background-color: rgb(249, 249,
        249);">Best regards<br>
      </span></p>
    <br>
    <div class="moz-cite-prefix">Am 07.07.2016 um 04:01 schrieb Robert
      Ancell:<br>
    </div>
    <blockquote
cite="mid:CADsFeGYC71VJA4Y6A23-XO53fJ6nw3rbkRzbZC2Ukm9bDnJO1w@mail.gmail.com"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <div dir="ltr">
        <div>This might help:<br>
          <a moz-do-not-send="true"
href="http://askubuntu.com/questions/93542/how-to-disable-shutdown-reboot-suspend-hibernate">http://askubuntu.com/questions/93542/how-to-disable-shutdown-reboot-suspend-hibernate</a><br>
          <br>
        </div>
        i.e. disable these actions for the 'lightdm' user.<br>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">On Fri, 1 Jul 2016 at 20:10 Klaus Merkel <<a
            moz-do-not-send="true" href="mailto:k.merkel@lan1.de">k.merkel@lan1.de</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="#FFFFFF" text="#000000"> <font face="Calibri">Hi,<br>
              <br>
              I'm in the process of building a kiosk system and have to
              lock it down. Now I need to disable or remove entirely the
              option to reboot, shutdown and send the system into
              hibernation. I'm running xbunutu 16.04. <br>
              <br>
              Is this possible?<br>
              <br>
              Best regards<br>
              <br>
              Klaus Merkel<br>
            </font>
            <div>-- <br>
              <div>-- <br>
                <blockquote style="margin:0 0 0
                  40px;border:none;padding:0px"> <span
                    style="color:rgb(20,66,102);font-family:'Calibri
                    ',sans-serif;font-size:14pt">Klaus Merkel</span><br>
                  <span
style="font-size:12pt;font-family:Calibri,sans-serif;color:rgb(127,127,127)">IT
                    Specialist</span><br>
                  <div
style="font-size:10pt;font-family:Calibri,sans-serif;color:rgb(127,127,127)">
                    <span>--</span><br>
                    <span>LAN1 Hotspots GmbH</span><br>
                    <span>Gaußstraße 158</span><br>
                    <span>22765 Hamburg</span><br>
                    <br>
                    <span>Hotline +49 40 317 66 66 66</span><br>
                    <span>Tel. +49 40 317 66 66 - 59</span><br>
                    <span>Fax +49 40 317 66 66 - 33</span><br>
                    <span>Mobil 01522 260 22 00</span><br>
                    <a moz-do-not-send="true"
                      href="mailto:k.merkel@lan1.de"
                      style="color:rgb(20,66,102)" target="_blank">k.merkelh@lan1.de</a><br>
                    <a moz-do-not-send="true" href="http://www.lan1.de"
                      style="color:rgb(20,66,102)" target="_blank">www.lan1.de</a><br>
                    <span>Sitz der Gesellschaft: Hamburg</span><br>
                    <span>Handelsregister Hamburg HRB 118700</span><br>
                    <span>Geschäftsführer: Jörg Hümmer</span><br>
                    <span>Ust.-ID-Nr. DE277065194</span><br>
                  </div>
                </blockquote>
              </div>
            </div>
          </div>
          _______________________________________________<br>
          LightDM mailing list<br>
          <a moz-do-not-send="true"
            href="mailto:LightDM@lists.freedesktop.org" target="_blank">LightDM@lists.freedesktop.org</a><br>
          <a moz-do-not-send="true"
            href="https://lists.freedesktop.org/mailman/listinfo/lightdm"
            rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/lightdm</a><br>
        </blockquote>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
LightDM mailing list
<a class="moz-txt-link-abbreviated" href="mailto:LightDM@lists.freedesktop.org">LightDM@lists.freedesktop.org</a>
<a class="moz-txt-link-freetext" href="https://lists.freedesktop.org/mailman/listinfo/lightdm">https://lists.freedesktop.org/mailman/listinfo/lightdm</a>
</pre>
    </blockquote>
    <br>
    <div class="moz-signature">-- <br>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <div class="moz-signature">-- <br>
        <blockquote style="margin:0 0 0 40px; border:none; padding:0px;">
          <span class="" style="color: rgb(20, 66, 102); font-family:
            'Calibri ', sans-serif; font-size: 14pt;">Klaus Merkel</span><br>
          <span class="" style="font-size: 12pt; font-family: Calibri,
            sans-serif; color: rgb(127, 127, 127);">IT Specialist</span><br>
          <div style="font-size: 10pt; font-family: Calibri, sans-serif;
            color: rgb(127, 127, 127);"> <span>--</span><br>
            <span>LAN1 Hotspots GmbH</span><br>
            <span>Gaußstraße 158</span><br>
            <span>22765 Hamburg</span><br>
            <br>
            <span>Hotline +49 40 317 66 66 66</span><br>
            <span>Tel. +49 40 317 66 66 - 59</span><br>
            <span>Fax +49 40 317 66 66 - 33</span><br>
            <span>Mobil 01522 260 22 00</span><br>
            <a href="mailto:k.merkel@lan1.de" class="" style="color:
              rgb(20, 66, 102);">k.merkelh@lan1.de</a><br>
            <a href="http://www.lan1.de" class="" style="color: rgb(20,
              66, 102);">www.lan1.de</a><br>
            <span>Sitz der Gesellschaft: Hamburg</span><br>
            <span>Handelsregister Hamburg HRB 118700</span><br>
            <span>Geschäftsführer: Jörg Hümmer</span><br>
            <span>Ust.-ID-Nr. DE277065194</span><br>
          </div>
        </blockquote>
      </div>
    </div>
  </body>
</html>