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>