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    <p><font size="+1"><tt>I know.</tt></font></p>
    <p><font size="+1"><tt>So far, the only files changed are the ones I
          changed myself, like bind config files and vimrc.</tt></font></p>
    <p><font size="+1"><tt>No hidden toolkit found too.</tt></font></p>
    <p><font size="+1"><tt>I still think that it is easier to be a
          misconfiguration done by myself.</tt></font></p>
    <p><font size="+1"><tt>Still looking for better indications that
          this could be the case.</tt></font><br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 07/02/2017 12:42, Alberto Colosi
      wrote:<br>
    </div>
    <blockquote
cite="mid:CY4PR13MB1381712836B47A860CFC6C36A2430@CY4PR13MB1381.namprd13.prod.outlook.com"
      type="cite">
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        dir="ltr">
        <p>IP ports not open does not mean is not hacked.</p>
        <p>a vulnerability can be used to make a change or an access</p>
        <p><br>
        </p>
        <p>try to change and audit file access and permission firewall
          log analisys can give a plus to find a solution (check all IP
          traffic out from TCP/UDP 53)</p>
        <p><br>
        </p>
        <p>If you have RNDC , change KEY or disable it</p>
        <p><br>
        </p>
        <p><br>
        </p>
        <br>
        <div style="color: rgb(0, 0, 0);">
          <hr tabindex="-1" style="display:inline-block; width:98%">
          <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
              color="#000000" face="Calibri, sans-serif"><b>From:</b>
              Raul Dias <a class="moz-txt-link-rfc2396E" href="mailto:raul@dias.com.br"><raul@dias.com.br></a><br>
              <b>Sent:</b> Tuesday, February 7, 2017 3:34 PM<br>
              <b>To:</b> Alberto Colosi; <a class="moz-txt-link-abbreviated" href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a><br>
              <b>Subject:</b> Re: bind 9 goes rogue and revert zone
              information</font>
            <div> </div>
          </div>
          <div>
            <p dir="ltr">Sorry, <br>
              Static files. <br>
              It is the master server. <br>
              No dynamic updates. <br>
              Host under lxc with only bind ports open. </p>
            <br>
            <div class="gmail_quote">
              <div dir="ltr">On Tue, Feb 7, 2017, 12:27 Alberto Colosi
                <<a moz-do-not-send="true"
                  href="mailto:alcol@hotmail.com">alcol@hotmail.com</a>>
                wrote:<br>
              </div>
              <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;
                border-left:1px #ccc solid; padding-left:1ex">
                <div dir="ltr" class="gmail_msg">
                  <div id="m_-6378113803947496027divtagdefaultwrapper"
                    dir="ltr" class="gmail_msg" style="font-size:12pt;
                    color:#000000;
                    font-family:Calibri,Arial,Helvetica,sans-serif">
                    <p class="gmail_msg">hi is unclear named structure
                      if is a slave a master if dynamic updates are
                      enabled and if the unix box has been hacked
                      <br class="gmail_msg">
                    </p>
                    <p class="gmail_msg">as last , zones are static
                      files on fs ?<br class="gmail_msg">
                    </p>
                    <br class="gmail_msg">
                    <br class="gmail_msg">
                    <div class="gmail_msg" style="color:rgb(0,0,0)">
                      <div class="gmail_msg">
                        <hr class="gmail_msg"
                          style="display:inline-block; width:98%">
                        <div id="m_-6378113803947496027x_divRplyFwdMsg"
                          dir="ltr" class="gmail_msg"><font
                            class="gmail_msg" style="font-size:11pt"
                            color="#000000" face="Calibri, sans-serif"><b
                              class="gmail_msg">From:</b> bind-users
                            <<a moz-do-not-send="true"
                              href="mailto:bind-users-bounces@lists.isc.org"
                              class="gmail_msg" target="_blank">bind-users-bounces@lists.isc.org</a>>
                            on behalf of Raul Dias <<a
                              moz-do-not-send="true"
                              href="mailto:raul@dias.com.br"
                              class="gmail_msg" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:raul@dias.com.br">raul@dias.com.br</a></a>><br
                              class="gmail_msg">
                            <b class="gmail_msg">Sent:</b> Tuesday,
                            February 7, 2017 3:03 PM<br
                              class="gmail_msg">
                            <b class="gmail_msg">To:</b> <a
                              moz-do-not-send="true"
                              href="mailto:bind-users@lists.isc.org"
                              class="gmail_msg" target="_blank">
                              <a class="moz-txt-link-abbreviated" href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a></a><br
                              class="gmail_msg">
                            <b class="gmail_msg">Subject:</b> bind 9
                            goes rogue and revert zone information</font>
                          <div class="gmail_msg"> </div>
                        </div>
                      </div>
                      <font class="gmail_msg" size="2"><span
                          class="gmail_msg" style="font-size:10pt">
                        </span></font></div>
                  </div>
                </div>
                <div dir="ltr" class="gmail_msg">
                  <div id="m_-6378113803947496027divtagdefaultwrapper"
                    dir="ltr" class="gmail_msg" style="font-size:12pt;
                    color:#000000;
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                    <div class="gmail_msg" style="color:rgb(0,0,0)"><font
                        class="gmail_msg" size="2"><span
                          class="gmail_msg" style="font-size:10pt">
                          <div class="m_-6378113803947496027PlainText
                            gmail_msg">Hello,<br class="gmail_msg">
                            <br class="gmail_msg">
                            I have a very strange behavior that I am
                            failing to understand.<br class="gmail_msg">
                            <br class="gmail_msg">
                            2 to 5 times a week, a named server revert
                            back to a previous version os <br
                              class="gmail_msg">
                            a master zone.<br class="gmail_msg">
                            This happens during the night, usually
                            around 20h EST.<br class="gmail_msg">
                            <br class="gmail_msg">
                            This zone has a serial of 3017020401 (yes, I
                            typo the 3 somewhere in the <br
                              class="gmail_msg">
                            past).<br class="gmail_msg">
                            When it reverts its zone information, it
                            goes back to 3016060101.<br
                              class="gmail_msg">
                            <br class="gmail_msg">
                            I have updated, restarted the host, clean
                            all cache and journal files, <br
                              class="gmail_msg">
                            grep all files in the host for 3016060101
                            (just shows up in the logs).<br
                              class="gmail_msg">
                            <br class="gmail_msg">
                            So, I have no clue why, or how it is
                            happening. Where does it get the <br
                              class="gmail_msg">
                            old information.<br class="gmail_msg">
                            <br class="gmail_msg">
                            I thought first about the serial, but it
                            would have happened in the past <br
                              class="gmail_msg">
                            too, right?  As it should be a 32bit
                            unsigned integer, it shouldn't be a <br
                              class="gmail_msg">
                            problem, IMHO.<br class="gmail_msg">
                            <br class="gmail_msg">
                            Yet, when "dig domain -t SOA @server", it is
                            there again.<br class="gmail_msg">
                            <br class="gmail_msg">
                            The host is a debian Jessie and bind is
                            9.9.5, 1:9.9.5.dfsg-9+deb8u8 <br
                              class="gmail_msg">
                            more specifically.<br class="gmail_msg">
                            <br class="gmail_msg">
                            <br class="gmail_msg">
                            Thanks for any direction.<br
                              class="gmail_msg">
                            -rsd<br class="gmail_msg">
                          </div>
                        </span></font></div>
                  </div>
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              </blockquote>
            </div>
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    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Att. Raul Dias</pre>
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