tinydns(8)                           System Manager's Manual                           tinydns(8)



NAME
       tinydns - a DNS server.


DESCRIPTION
       tinydns  accepts  iterative  DNS queries from hosts around the Internet, and responds with
       locally configured information.


Configuration
       This is a reference page.  For tutorial information, see the instructions for
       running a DNS server (http://cr.yp.to/djbdns/run-server.html).

       Normally tinydns is set up by the tinydns-conf(8) program.

       tinydns runs chrooted in the directory specified by the $ROOT environment variable,  under
       the uid and gid specified by the $UID and $GID environment variables.

       tinydns  listens for incoming UDP packets addressed to port 53 of $IP.  It does not listen
       for TCP queries.

       tinydns answers queries as specified by  data.cdb,  a  binary  file  created  by  tinydns-
       data(8).


Further details
       tinydns rejects zone-transfer requests, inverse queries, non-Internet-class queries, trun‐
       cated packets, and packets that contain anything other than a single query.

       tinydns, like BIND, includes NS records with answers to most queries.  This increases  DNS
       packet  sizes, but it draws queries away from parent servers, and reduces the frequency of
       long DNS delays.  With the default tinydns-data(8) cache times, a client that uses a  nor‐
       mal  record  at  least once every day will always have the corresponding NS records cached
       and will never have to talk to parent servers.


SEE ALSO
       tinydns-conf(8), tinydns-data(8)

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



                                                                                       tinydns(8)