nslookup

The nslookup command can be used on Mac OS X, Windows and Unix to find out IP addresses or domains of a specific computer using DNS. The command name means " name server look up " which means as much as " look at the name server ". As a more modern alternative to nslookup command has increasingly established itself dig, which is available on Windows as Cygwin port.

Options

Using the nslookup tool allows the domain name to an IP address or the IP address of a domain name identify. By default, in non-interactive mode, set the DNS server is used to resolve the name or IP address. If another DNS server to be used for resolution, eg in order to check this, or because of their own specific requests not supported, this must also be indicated.

Nslookup is on the command line / console command available.

Compared to the parameters in many other DOS and Windows programs is the parameter " q =" to write small. A big " Q" leads to the issue of " *** Invalid option: "

Example

$ nslookup > Server 8.8.4.4 Default server: 8.8.4.4 Address: 8.8.4.4 # 53 > Set q = any > heise.de Server: 8.8.4.4 Address: 8.8.4.4 # 53 Non- authoritative answer: heise.de          origin = ns.heise.de          mail addr = postmaster.ns.heise.de          serial = 2013050201          refresh = 10800          retry = 3600          expire = 604800          minimum = 3600 heise.de nameserver = ns.s.plusline.de. heise.de nameserver = ns.heise.de. heise.de nameserver = ns.pop -hannover.de. heise.de nameserver = ns2.pop - hannover.net. heise.de nameserver = ns.plusline.de. Name: heise.de Address: 193.99.144.80 heise.de Has AAAA address 2A02: 2E0: 3fe: 100 :: 8 heise.de mail exchanger = 10 relay.heise.de. heise.de text = "v = spf1 ip4: 193.99.144.0/24 ip4: 193.99.145.0/24 all" Authoritative answers can be found from: Here first the DNS server the query was set to 8.8.4.4, then all entries extended ( set q = any ), and finally retrieved the zone heise.de.

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