The nslookup application can be used to interactively query servers running a domain name service (DNS) application. It will send domain name query packets to any designated DNS server Three data elements are required in order to formulate a DNS query using nslookup:
A DNS server name/address
. The Internet style address that is being queried
. The type of record you are searching for
NSLOOKUP is used to query the Internet name server in order to obtain an address if you have a site name or a site name if you have an address. It can be very useful as a quick check to see if an electronic mail address is, in fact, reachable. To translate a name to an address,
type NSLOOKUP site name
You should get a report like this:
NSLOOKUP spiderhunter.com
Server: LOCALHOST
Address: 129.0.0.1
Name: spiderhunter.com
Address: 38.10.0.4
To translate an address to a name, type NSLOOKUP address and you should see something like this:
NSLOOKUP 128.171.90.10
Server: LOCALHOST
Address: 128.0.0.1
Name: uIc.edu
Address: 128.171.90.10
A DNS server name/address
. The Internet style address that is being queried
. The type of record you are searching for
NSLOOKUP is used to query the Internet name server in order to obtain an address if you have a site name or a site name if you have an address. It can be very useful as a quick check to see if an electronic mail address is, in fact, reachable. To translate a name to an address,
type NSLOOKUP site name
You should get a report like this:
NSLOOKUP spiderhunter.com
Server: LOCALHOST
Address: 129.0.0.1
Name: spiderhunter.com
Address: 38.10.0.4
To translate an address to a name, type NSLOOKUP address and you should see something like this:
NSLOOKUP 128.171.90.10
Server: LOCALHOST
Address: 128.0.0.1
Name: uIc.edu
Address: 128.171.90.10
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