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Subject: [ActiveDir] Cannot resolve names in certain top level domains like .co.uk.:

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sbradcpa

Posts:496

02/02/2009 3:23 PM
The Essential Business Server Team Blog : Cannot resolve names in certain top level domains like .co.uk.: http://blogs.technet.com/essentialbusinessserver/archive/2009/01/29/cannot-resolve-names-in-certain-top-level-domains-like-co-uk.aspx After one day, you may find your Windows 2008 DNS Server is unable to resolve names in certain top level domains (tld’s) like .co.uk, .cn, and .br when it is configured to use root hints. It may also occur with other tld’s. A network monitor trace shows the DNS Server does not send any DNS traffic out to the internet. The Windows 2008 DNS server returns SERVFAIL to the client or when using nslookup. Workarounds include restarting DNS, clearing the DNS cache, setting maxcachettl to 2 days or greater, and using DNS Forwarders instead of root hints. If you want to use root hints, you can set the maxcachettl registry value on the Windows 2008 DNS Server as follows: 1. Start Registry Editor (Regedit.exe). 2. Locate the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters 3. On the Edit menu, click New, click* DWORD (32-bit) Value , and then add the following value: Value: MaxCacheTtl* Data Type: DWORD Data value: 0x2A300 (172800 in decimal = 2 days) 4. Click OK . 5. Quit Registry Editor. 6. Restart the DNS server. Data type Range REG_DWORD 0x0 \| 0x1 - 0xFFFFFFFF seconds Default value:0x15180 (86,400 seconds = 1 day) You may see this behavior in Windows 2008, SBS 2008 and EBS 2008. List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.activedir.org/ma/default.aspx

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Forums >ActiveDir Mail List Archive >List Archives > [ActiveDir] Cannot resolve names in certain top level domains like .co.uk.:

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