Archive for the ‘General Network’ Category

EventID 7062: DNS Server encountered a packet addressed to itself

Tuesday, July 20th, 2010

Event ID 7062: DNS Server encountered a packet addressed to itself

Symptom: When checking the Event Viewer, DNS server is logging Event 7062: DNS Server encountered a packet addressed to itself — IP address. The DNS server should never be sending a packet to itself. This situation usually indicates a configuration error.
Check the following areas for possible self-send configuration errors:

1) Forwarders list. (DNS servers should not forward to themselves).
2) Master lists of secondary zones.
3) Notify lists of primary zones.
4) Delegations of subzones. Must not contain NS record for DNS server.

Resolution:

1. DNS servers should not forward to themselves: DNS can be configured to forward off-site queries to designated servers. Be sure that the DNS server is not configured to forward these off-site queries to itself:

1.
Select the server, click DNS, and then click Properties from the menu.

2.
Click the Forwarders tab.

3.
If the server’s own IP address is listed, select it and click Remove.

4.
After you make this change, make sure to stop and restart the DNS service.

2. Master lists of secondary zones: If this server includes secondary zones, make sure that it does not list itself as a master server for those zones.

3. Notify lists of primary zones: If the server has a zone on it configured to allow zone transfers and to notify it secondary servers to do a zone transfer, it should not have its own address be notified.
4. Delegations of subzones: Must not contain NS record for this DNS server unless sub-zone is also on this server.

5. Root hints: Check your Root Hints tab to make sure it does not have its own name and address listed there.

6. Multihomed computer: If this is multihomed computer, disabling MS Client, File & Printer sharing on the outer NIC. You should not register the outside NIC on the DNS record.

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Posted in DNS - Server 2003, DNS - Server 2008, DNS - Small Business Server 2003, General Network | Comments Off


The list of servers for this workgroup is not currently available

Tuesday, June 1st, 2010

Symptom: Trying to install a shared printer or access a shared Drive you get a message  which ends with this

The list of servers for this workgroup is not currently available

Solution:

go to registry editor  and modify a key ( if your not a professional you could mess up your computer if done wrong).

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT\Parameters\DhcpNodeType to 1

Meaning of Value

1 = B-node. NetBT uses IP broadcast messages to register and resolve IP addresses from NetBIOS names.

2 = P-node. NetBT uses point-to-point communication with a NetBIOS name server (in Windows Server 2003–based networks, this is the WINS server) to register and resolve IP addresses from NetBIOS names.

4 = M-node. NetBT uses a mix of B-node and P-node to register and resolve NetBIOS names. M-node first uses broadcast resolution (B-node), then if necessary, uses a server query (P-node).

8 = H-node. NetBT uses a hybrid of B-node and P-node. An H-node client always directly queries a name server first and then uses broadcasts only if the direct query fails.

www.avantinetworks.com – PC and Network Services

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