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NAME

       dnsname - does a reverse lookup for the IP address

SYNOPSIS

       dnsname a.b.c.d

DESCRIPTION

       dnsname  does  a  reverse lookup for the IP address a.b.c.d.  It prints
       the first domain name for that address.  If no domain names are  listed
       in  DNS,  dnsname  prints  a  blank  line.   You  can  list  several IP
       addresses; dnsname prints each result on a separate line.

       There is also a dnsfilter(1) program that reads IP addresses  from  its
       input and performs many reverse lookups in parallel.

       Normally  dnsname  exits  0.  If dnsname encounters a temporary problem
       that prevents it from determining the domain name, it prints  an  error
       message and exits 111.

SEE ALSO

       dnsip(1),    dnsipq(1),   dnsmx(1),   dnstxt(1),   dnsqr(1),   dnsq(1),
       dnstrace(1)

       http://cr.yp.to/djbdns.html

                                                                    dnsname(1)