Information Technology Reference
In-Depth Information
■
Ipconfig
allows you to perform the following tasks:
■
View DNS client settings
■
Display and flush the resolver cache
■
Force a dynamic update client to register its DNS records
■
The DNS log file monitors certain DNS server events and logs them for your
edification.
Using
Nslookup
Nslookup
is a standard command-line tool provided in most DNS server implementations,
including Windows Server 2012 R2. Windows Server 2012 R2 gives you the ability to
launch
nslookup
from the DNS snap-in.
When
nslookup
is launched from the DNS snap-in, a command
prompt window opens automatically. You enter
nslookup
commands in
this window.
Nslookup
offers you the ability to perform query testing of DNS servers and to obtain
detailed responses at the command prompt. This information can be useful for diagnosing
and solving name resolution problems, for verifying that resource records are added or
updated correctly in a zone, and for debugging other server-related problems. You can do
a number of useful things with
nslookup
:
■
Use it in noninteractive mode to look up a single piece of data
■
Enter interactive mode and use the debug feature
■
Perform the following from within interactive mode:
■
Set options for your query
■
Look up a name
■
Look up records in a zone
■
Perform zone transfers
■
Exit
nslookup
When you are entering queries, it is generally a good idea to enter FQDNs
so that you can control what name is submitted to the server. However, if
you want to know which suffixes are added to unqualified names before
they are submitted to the server, you can enter
nslookup
in debug mode
and then enter an unqualified name.
Using Nslookup on the Command Line
To use
nslookup
in plain-old command-line mode, enter the following in the command
prompt window:
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