1MDNS-SCAN(1) General Commands Manual MDNS-SCAN(1)
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6 mdns-scan - Scan for mDNS/DNS-SD services published on the local net‐
7 work
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11 mdns-scan
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15 mdns-scan is a tool for scanning for mDNS/DNS-SD published services on
16 the local network. It issues a mDNS PTR query to the special RR _ser‐
17 vices._dns-sd._udp.local for retrieving a list of all currently regis‐
18 tered services on the local link.
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22 mdns-scan has no commandline options.
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26 mdns-scan is not a good mDNS citizen since it queries continuously for
27 services and doesn't implement features like Duplicate Suppression. It
28 is intended for usage as a debugging tool only.
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30 mdns-scan is incomplete since it doesn't resolve mDNS services for you
31 - it just dumps their PTR RRs. To understand these records you need
32 minimal knowledge of DNS-SD and how it works.
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34 mdns-scan does not terminate on its own behalf. It scans for services
35 continuously until the user kills it by pressing C-c.
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37 mdns-scan does not rely on a local mDNS responder daemon. It has no
38 dependencies besides the GNU libc. It has been tested on Linux only.
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40 mdns-scan does NOT scan for local mDNS enabled hosts or A/AAAA RRs, it
41 scans for DNS-SD registered services, nothing else.
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45 mDNSResponder(8)
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49 mdns-scan has been written by Lennart Poettering <mzqrovna@0pointer.de>
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530.4 Jan 21, 2004 MDNS-SCAN(1)