<div dir="ltr">Thanks Tom !<br>I didn't can answer earlier<br><br>> It's normal operation, as I explained in my reply to the same question on 11th, see <a href="https://lists.isc.org/pipermail/dhcp-users/2019-August/021730.html">https://lists.isc.org/pipermail/dhcp-users/2019-August/021730.html</a><br>Sorry for repeat but Unfortunately i didn't get mail in my work mail and repeat question via private mail.<br><br>> Where you have a host entry, the lease does NOT go through the normal lifecycle - and would not normally appear in the leases file.<br>But host about im write NOT not declare in dhcpd.conf<br><br>--------------------START INFO ABOUT ISSUE HOST----------------------------------------------<br>lease 10.10.10.12 {<br> starts 5 2019/08/09 11:00:47;<br> ends 5 2019/08/09 12:00:47;<br> tstp 5 2019/08/09 12:00:47;<br> cltt 5 2019/08/09 11:00:47;<br> binding state free;<br> hardware ethernet 18:10:2b:12:db:12;<br> uid "\001\010\000'\216G\220";<br>}<br><br>cuted from the file /etc/named/tsc/tsc.zone:<br><br>$TTL 1800 ; 30 minutes<br>host12-c12-1 A 10.10.10.12<br> TXT "00ffa9c88e143752544ac44exxxxxxxxxx"<br>------------------END INFO ABOUT ISSUE HOST----------------------------------------------------<br><br><br><br><br>------------------START CONFIGURATION FILE-----------------------------------------------------<br>## DDNS related configuration<br><br>ddns-update-style interim;<br>ddns-rev-domainname "in-addr.arpa.";<br>ddns-domainname "tsc.";<br>update-static-leases on;<br><br>group {<br><br> option routers 10.10.10.1;<br> ddns-hostname = host-decl-name;<br><br> update-optimization false;<br> update-conflict-detection false;<br><br><br># example host<br> host host12 {<br> hardware ethernet 18:31:BF:xx:xx:xx;<br> fixed-address 10.10.10.111;<br> }<br><br>}<br>------------------END CONFIGURATION FILE-----------------------------------------------------<br><br><br><br>My question about - Why host can stay in DNS without record in config file and without manual doing it record in DNS.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 22 Aug 2019 at 23:00, Simon Hobson <<a href="mailto:dhcp1@thehobsons.co.uk">dhcp1@thehobsons.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">ivan nepryakhin <<a href="mailto:nepryakhin.1989@gmail.com" target="_blank">nepryakhin.1989@gmail.com</a>> wrote:<br>
<br>
> I'm encountered with a strange issue:<br>
<br>
It's normal operation, as I explained in my reply to the same question on 11th, see <a href="https://lists.isc.org/pipermail/dhcp-users/2019-August/021730.html" rel="noreferrer" target="_blank">https://lists.isc.org/pipermail/dhcp-users/2019-August/021730.html</a><br>
<br>
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