Guest bisi Posted March 17, 2008 Posted March 17, 2008 Hello, we have our printers configured to do DHCP with fix reservations. DNS- entries are being added manually for each printer since DNS security is activated. We activated scavenging a few weeks ago and now our printers start disappearing in DNS, even if manually added adresses normaly should not get affected by scavenging. When I had a deeper look with dnscmd, I saw that most of the printers have the timestamp set to 01.01.1601, so they should be ignored in scavening. Others have an actual timestamp dating from a few days ago, so they will be deleted in a few days or weeks when records get "obsolete". It seems to me that the time stamps get updated when printers are rebooted, even if the entry was manally added, but i am not 100% sure with that. What can be the issue? Best regards CB
Guest Herb Martin Posted March 19, 2008 Posted March 19, 2008 Re: scavenging issue (fix addresses being scavenged) "bisi" <bisibis@pt.lu> wrote in message news:33499a71-9011-4218-b05f-2e2e46de4853@d4g2000prg.googlegroups.com... > Hello, > we have our printers configured to do DHCP with fix reservations. DNS- > entries are being added manually for each printer since DNS security > is activated. > We activated scavenging a few weeks ago and now our printers start > disappearing in DNS, even if manually added adresses normaly should > not get affected by scavenging. > > When I had a deeper look with dnscmd, I saw that most of the printers > have the timestamp set to 01.01.1601, so they should be ignored in > scavening. Others have an actual timestamp dating from a few days ago, > so they will be deleted in a few days or weeks when records get > "obsolete". This should not be happening BUT this is NOT the first report we have seen here (or elsewhere) indicating that MANUAL entries were being scavenged. It is my opinion that (in general) the "experts" on DNS don't see this behavior and we have never known if this is due to different practices OR to an unusual bug that they just don't encounter. One suspicion is that the records is being create (by the Admin) with the scavenge "when stale" option selected. This supposition is unsatisfying (in general) because that option takes some skill to FIND and those who can find it generally know better than to use it for ordinary manual (or especially Reserved entries.) > It seems to me that the time stamps get updated when printers are > rebooted, even if the entry was manally added, but i am not 100% sure > with that. > What can be the issue? Ensure that delete when stale is unchecked (you might need to go to Advance VIEW in DNS Server console) and make sure you aren't using any unusual methods of creating the record such that it gets checked. > Best regards > CB
Guest Yue Luo Posted March 19, 2008 Posted March 19, 2008 RE: scavenging issue (fix addresses being scavenged) Could you check what permission has been set on the entries that are manually created? If you tighten up the permission on these entries, will it help? Yue "bisi" wrote: > Hello, > we have our printers configured to do DHCP with fix reservations. DNS- > entries are being added manually for each printer since DNS security > is activated. > We activated scavenging a few weeks ago and now our printers start > disappearing in DNS, even if manually added adresses normaly should > not get affected by scavenging. > > When I had a deeper look with dnscmd, I saw that most of the printers > have the timestamp set to 01.01.1601, so they should be ignored in > scavening. Others have an actual timestamp dating from a few days ago, > so they will be deleted in a few days or weeks when records get > "obsolete". > > It seems to me that the time stamps get updated when printers are > rebooted, even if the entry was manally added, but i am not 100% sure > with that. > What can be the issue? > > Best regards > CB >
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