Diskussion:Nslookup

COMMANDS

host [server]

This command looks up information for host using the current default server or using server, if specified. If host is an Internet address and the query type is A or PTR, the name of the host is returned. If host is a name and does not have a trailing period (.), the search list is used to qualify the name

To look up a host not in the current domain, append a period to the name

server domain | lserver domain

These commands change the default server to domain; lserver uses the initial server to look up information about domain, while server uses the current default server. If an authoritative answer cannot be found, the names of servers that might have the answer are returned

root This command is not implemented

finger This command is not implemented

ls This command is not implemented

view This command is not implemented

help This command is not implemented

? This command is not implemented

exit This command exits the program

set keyword[=value] This command is used to change state information that affects the lookups. Valid keywords are

all This keyword prints the current values of the frequently used options to set. Information about the current default server and host is also printed

class=value This keyword changes the query class to one of

IN the Internet class

CH the Chaos class

HS the Hesiod class

ANY wildcard

The class specifies the protocol group of the information. The default is IN; the abbreviation for this keyword is cl

nodebug This keyword turns on or off the display of the full response packet, and any intermediate response packets, when searching. The default for this keyword is nodebug; the abbreviation for this keyword is [no]deb

nod2 This keyword turns debugging mode on or off. This displays more about what nslookup is doing. The default is nod2

domain=name This keyword sets the search list to name

nosearch If the lookup request contains at least one period, but does not end with a trailing period, this keyword appends the domain names in the domain search list to the request until an answer is received. The default is search

port=value This keyword changes the default TCP/UDP name server port to value from its default, port 53. The abbreviation for this keyword is po

querytype=value | type=value This keyword changes the type of the information query to value. The defaults are A and then AAAA; the abbreviations for these keywords are q and ty

Please note that it is only possible to specify one query type. Only the default behavior looks up both when an alternative is not specified

norecurse This keyword tells the name server to query other servers if it does not have the information. The default is recurse; the abbreviation for this keyword is [no]rec

ndots=number This keyword sets the number of dots (label separators) in a domain that disables searching. Absolute names always stop searching

retry=number This keyword sets the number of retries to number

timeout=number This keyword changes the initial timeout interval to wait for a reply to number, in seconds

novc This keyword indicates that a virtual circuit should always be used when sending requests to the server. novc is the default

nofail This keyword tries the next nameserver if a nameserver responds with SERVFAIL or a referral (nofail), or terminates the query (fail) on such a response. The default is nofail