{"id":15001,"date":"2021-12-17T14:28:42","date_gmt":"2021-12-17T14:28:42","guid":{"rendered":"https:\/\/lgildv5i97.onrocket.site\/answers\/?post_type=question&#038;p=15001"},"modified":"2021-12-17T14:29:14","modified_gmt":"2021-12-17T14:29:14","slug":"multiple-entries-in-dns-forward-lookup-zone","status":"publish","type":"question","link":"https:\/\/computing.net\/answers\/windows-2008\/multiple-entries-in-dns-forward-lookup-zone\/387.html","title":{"rendered":"Multiple Entries In DNS Forward Lookup Zone"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I have DCHP and DNS running on a Server 2008 R2 Domain Controller. I have noticed multiple entries in DNS with the same IP address but different hostnames. When I check the owner of the entry in DNS one is the DHCP service and the other is a client machine i.e hostname$<\/p>\n<p>The DHCP registered entries are correct and seem to clean up after themselves by removing entries when either the lease expires or is released. The host entries however do not.<\/p>\n<p>I have scavenging\/aging of stale records for no-refesh and refresh set to 7 days for all zones, should this possibly be shorter.<\/p>\n<p>Windows clients do have the register this connections addresses in DNS checked in the adapter properties, this must be the default setting.<\/p>\n<p>I suspect reducing the scavenging interval may help but how short is advisable?<br \/>\nI have read else where a GPO to change client NIC properties might also be a solution but that seems a lot of admin. How do others address this issue on the LAN?<\/p>\n<p>As a thought is it possible to restrict the security permissions on the DNS server so that clients don&#8217;t have permissions to register themselves leaving DHCP to do it?<\/p>\n<p>Any suggestions welcome, thanks \ud83d\ude42<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"iawp_total_views":7},"question-category":[73],"question_tags":[],"class_list":["post-15001","question","type-question","status-publish","hentry","question-category-windows-2008"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question\/15001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question"}],"about":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/types\/question"}],"author":[{"embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/comments?post=15001"}],"wp:attachment":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/media?parent=15001"}],"wp:term":[{"taxonomy":"question-category","embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question-category?post=15001"},{"taxonomy":"question_tags","embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question_tags?post=15001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}