NAME

       mdns-scan - Scan for mDNS/DNS-SD services published on the local network

SYNOPSIS

       mdns-scan

DESCRIPTION

       mdns-scan  is a tool for scanning for mDNS/DNS-SD published services on the local network.
       It issues a mDNS PTR query to the special RR _services._dns-sd._udp.local for retrieving a
       list of all currently registered services on the local link.

OPTIONS

       mdns-scan has no commandline options.

NOTES

       mdns-scan  is  not  a  good  mDNS  citizen  since it queries continuously for services and
       doesn't implement features like Duplicate Suppression. It  is  intended  for  usage  as  a
       debugging tool only.

       mdns-scan  is  incomplete  since  it doesn't resolve mDNS services for you - it just dumps
       their PTR RRs. To understand these records you need minimal knowledge of DNS-SD and how it
       works.

       mdns-scan  does  not terminate on its own behalf. It scans for services continuously until
       the user kills it by pressing C-c.

       mdns-scan does not rely on a local mDNS responder daemon. It has no  dependencies  besides
       the GNU libc. It has been tested on Linux only.

       mdns-scan  does  NOT  scan for local mDNS enabled hosts or A/AAAA RRs, it scans for DNS-SD
       registered services, nothing else.

SEE ALSO

       mDNSResponder(8)

AUTHOR

       mdns-scan has been written by Lennart Poettering <mzqrovna@0pointer.de>