RE: [ActiveDir] DNS and CPU Usage

[Mulnick, Al]

Title: Message

What's in the exclude list?  I don't doubt it's up to date or even think you have a virus (not that it's impossible, but I'm wondering if something else is going on). -----Original Message----- From: Santhosh Sivarajan [mailto:[EMAIL PROTECTED] Sent: Friday, October 24, 2003 1:22 PM To: [EMAIL PROTECTED] Subject: RE: [ActiveDir] DNS and CPU Usage Norton and it is up to date!   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mulnick, Al Sent: Friday, October 24, 2003 12:11 PM To: '[EMAIL PROTECTED]' Subject: RE: [ActiveDir] DNS and CPU Usage   Anti Virus programs -----Original Message----- From: Santhosh Sivarajan [mailto:[EMAIL PROTECTED] Sent: Friday, October 24, 2003 1:04 PM To: [EMAIL PROTECTED] Subject: RE: [ActiveDir] DNS and CPU Usage Yes. DNS servers are not responding to client quires.  Unfortunately, I cannot post the event log entries.   Any AV???   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mulnick, Al Sent: Friday, October 24, 2003 11:50 AM To: '[EMAIL PROTECTED]' Subject: RE: [ActiveDir] DNS and CPU Usage   Not responding to what?  Client requests right?   Can you post that event entry?   Any AV on these servers?  They are up to date as well right? -----Original Message----- From: Santhosh Sivarajan [mailto:[EMAIL PROTECTED] Sent: Friday, October 24, 2003 12:35 PM To: [EMAIL PROTECTED] Subject: RE: [ActiveDir] DNS and CPU Usage Forwarders: Child DNS servers are forwarding to top level DNS server.  Top level DNS server is forwarding to ISP   It is a large DNS Zone but there is no Zone transfer because it is a Delegated Zone.   I haven't seen any useful info in Eventlog other than DNS timeout errors and not responding error messages.     -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mulnick, Al Sent: Friday, October 24, 2003 11:19 AM To: '[EMAIL PROTECTED]' Subject: RE: [ActiveDir] DNS and CPU Usage   More information on the setup?  Forwarders etc are configured how?  Event log is saying what?   60% doesn't seem so bad from a process standpoint, but it should still be answering.  Are these large zones?    Assuming the latest software on the 2000 DNS servers. -----Original Message----- From: Santhosh Sivarajan [mailto:[EMAIL PROTECTED] Sent: Friday, October 24, 2003 12:01 PM To: [EMAIL PROTECTED] Subject: [ActiveDir] DNS and CPU Usage Hi all,   I am trying to understand what is happening in the background process on a DNS server after configuring a Delegated Zone.  Here is the DNS and AD (Windows 2000) DC setup   ABC.COM (Top Level Domain) DNS1 & DNS2                       ABC.COM -ADI        XYZ1.ABC.COM-Delegated XYZ2.ABC.COM-Delegated XYZ3.ABC.COM-Delegated 10.X.X.X-ADI   Child Domains XYZ1.ABC.COM                               XYZ2.ABC.COM                   XYZ3.ABC.COM DNS3 & DNS4                                   DNS5 & DNS6                       DNS7 & DNS8 XYZ1.ABC.COM-ADI                       XYZ2.ABC.COM-ADI           XYZ3.ABC.COM-ADI ABC.COM-Secondary                        ABC.COM-Secondary            ABC.COM-Secondary 10.X.X.X-Secondary                           10.X.X.X-Secondary               10.X.X.X-Secondary   Configured 3 Delegated Zones on DNS1 and DNS2 servers.  Everything looks good. Zone.  After one hour I noticed that DNS1&DNS2 servers are not responding to any DNS queries.  Task Manger was showing DNS.EXE is using 500MB of memory and CPU utilization was above 60%.  Has anyone seen this problem before?  Secure Dynamic Update is enabled on both DNS servers.  Any ideas, thoughts or comments?   Any input would be really appreciated   Santhosh