If resolution is still not successful and the Append parent suffixes of the primary DNS suffix check box is selected, the resolver creates new FQDNs by appending the single-label, unqualified domain name with the parent suffix of the primary DNS suffix name, and the parent of that suffix, and so on, stopping at the second-level domain name.

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QMM is able to use short or in other words NETBIOS names for the name resolution along with IP addresses or FQDN (Fully Qualified Domain Name) of sourcetarget domain environments.

The rest largely depends on the operating system where the corresponding QMM module is installed and whether NETBIOS over TCPIP is enabled or not.

In such case short names will be resolved using mixed WINSDNS techniques.

If NETBIOS over TCPIP is enabled and WINS environment is configured - QMM will first utilize NETBIOSWINS means for the short NETBIOS name resolution.

Note that it will still eventually fall back to the DNS for the NETBIOS name resolution.

Chapter 11 - NetBIOS over TCPIP Windows Methods of Resolving NetBIOS Names Computers running Windows Server 2003 or Windows XP can also attempt to resolve NetBIOS names using the Lmhosts file, the local host name, the DNS client resolver cache, and DNS servers.

NetBT in Windows Server 2003 and Windows XP uses the following process: When a NetBIOS application needs to resolve a NetBIOS name to an IPv4 address, NetBT checks the NetBIOS name cache for the NetBIOS name-to-IPv4 address mapping of the destination host.

If NetBT finds a mapping, the NetBIOS name is resolved without generating network activity.

If the name is not resolved from the entries in the NetBIOS name cache, NetBT attempts to resolve the name through three NetBIOS name queries to each configured NBNS.

If the configured NBNSs do not send a positive name response, NetBT sends up to three broadcast queries on the local network.

If there is no positive name response and the Use LMHOSTS lookup check box on the WINS tab is selected, NetBT scans the local Lmhosts file.

For more information, see Using the Lmhosts File in this chapter.

If the NetBIOS name is not resolved from the Lmhosts file, Windows attempts to resolve the name through host name resolution techniques.

NetBT converts the NetBIOS name to a single-label, unqualified domain name by taking the first 15 bytes of the NetBIOS name and removing spaces from the end of the name.

For example, for the NetBIOS name FILESRV1 20, the corresponding single-label, unqualified domain name is filesrv1.

The first step in host name resolution techniques is to check for a match against the local host name.

If the converted NetBIOS name does not match the local host name, the DNS Client service checks the DNS client resolver cache.

The DNS Client service creates fully qualified names from the converted NetBIOS name a single-label, unqualified domain name using the techniques described in Chapter 9, Windows Support for DNS.

If NETBIOS over TCPIP is not enabled the operating system is going to follow this order trying to reconstruct FQDN from the short host name provided: Chapter 9 - Windows Support for DNS Name Resolution for Single-Label, Unqualified Domain Names When the application specifies a single-label, unqualified domain name, the resolver systematically appends different DNS suffixes to the single-label, unqualified domain name; adds periods to make them FQDNs; and submits them to DNS for name resolution.

The resolver appends the DNS suffixes to the single-label, unqualified domain name based on the state of the Append primary and connection specific DNS suffixes or Append these suffixes check boxes on the DNS tab in the Advanced TCPIP Settings dialog box of the Internet Protocol (TCPIP) component.

If the Append primary and connection specific DNS suffixes check box is selected, the resolver appends the following names and sends separate queries: The primary DNS suffix, as specified on the Computer Name tab of the System item of Control Panel.

Each connection-specific DNS suffix, assigned either through DHCP or specified in the DNS suffix for this connection box on the DNS tab in the Advanced TCPIP Settings dialog box for each connection.

Netbios Domain Name