Open mDNS Report

This report identifies hosts that have the mDNS service running and accessible from the Internet.

See https://en.wikipedia.org/wiki/Multicast_DNS for more information on mDNS, which can be probed in a unicast fashion and can respond in methods similar to a standard DNS server.

Our initial probe tests to see if mDNS is accessible on the Internet and collects the information that it discloses, including a list of services that may be accessible via further mDNS probes. If a host is found to have the services “_workstation._tcp.local” or “_http._tcp.local” running, secondary probes are performed to collect whatever system information is returned. Some of the information that may be returned includes: trivial name of the device, IPv4 and IPv6 address(es) of the device (this may include RFC1918 addresses that are not meant to be leaked), MAC address information of the device, and potentially other information.

For more details behind the scan methodology and a daily update of global mDNS scan statistics please visit our dedicated Open mDNS scan page.

For more information on our scanning efforts, check out our Internet scanning summary page.

Fields

timestamp

Time that the IP was probed in UTC+0
ip

The IP address of the device in question
protocol

Protocol that the mDNS response came on (always UDP)
port

Port that the mDNS response came from (usually 5353/UDP)
hostname

Reverse DNS name of the device in question
tag

This will always be mdns
asn

ASN of where the device in question resides
geo

Country where the device in question resides
region

State / Province / Administrative region where the device in question resides
city

City in which the device in question resides
naics

North American Industry Classification System Code
sic

Standard Industrial Classification System Code
mdns_name

The trivial .local name that is sometimes returned in response to the initial probe for _services._dns-sd._udp.local; this field is often empty
mdns_ipv4

The IPv4 address(es) that are sometimes returned in response to the initial probe; this field is often empty
mdns_ipv6

The IPv6 address(es) that are sometimes returned in response to the initial probe; this field is often empty
services

The services that the host is running in response to the query for the list of info with "_services._dns-sd._udp.local"
workstation_name

The mDNS name that is returned in response to follow up mDNS query for "_workstation._tcp.local"
workstation_ipv4

The IPv4 address(es) that is/are returned in response to follow up mDNS query for "_workstation._tcp.local"
workstation_ipv6

The IPv6 address(es) that is/are returned in response to follow up mDNS query for "_workstation._tcp.local"
workstation_info

Information about the host that responded to the query for "_workstation._tcp.local" — it may contain name, MAC addresses, et cetera
http_name

The mDNS name that is returned in response to follow up mDNS query for "_http._tcp.local"
http_ipv4

The IPv4 address(es) that is/are returned in response to follow up mDNS query for "_http._tcp.local"
http_ipv6

The IPv6 address(es) that is/are returned in response to follow up mDNS query for "_http._tcp.local"
http_ptr

Contains information that looks like a trivial name and mDNS _local strings
http_info

More information about the http device is response to the query for "_http._tcp.local"
http_target

Name of the HTTP server. Usually just the contents of the http_name field with a trailing ".0"
http_port

The port that the http server appears to be listening on

Sample

"timestamp","ip","protocol","port","hostname","tag","asn","geo","region","city","naics","sic","mdns_name","mdns_ipv4","mdns_ipv6","services","workstation_name","workstation_ipv4","workstation_ipv6","workstation_info","http_name","http_ipv4","http_ipv6","http_ptr","http_info","http_target","http_port"
"2016-02-16 03:39:41","42.51.144.2","udp",5353,"htuidc.bgp.ip","mdns",56005,"CN","HENAN","ZHENGZHOU",0,0,,,,"_workstation._tcp.local.; _ssh._tcp.local.;","htuidc.local.","42.51.144.2 42.51.143.20 42.51.144.3 42.51.143.21 42.51.144.4 42.51.143.22 42.51.144.5 42.51.143.23",,"htuidc  00:50:56:a9:5d:21]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","203.109.149.72","udp",5353,"unassigned.static.cust.vf.net.nz","mdns",7657,"NZ","AUCKLAND","AUCKLAND",0,0,,,,"_workstation._tcp.local.;","prometheus.local.","192.168.0.1","fe80:0:0:0:224:1dff:fe5b:f1e8","prometheus [00:24:1d:5b:f1:e8]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","50.142.27.87","udp",5353,"c-50-142-27-87.hsd1.tn.comcast.net","mdns",7922,"US","TENNESSEE","CORRYTON",518210,737415,,,,"_spotify-connect._tcp.local.;",,,,,,,,,,,
"2016-02-16 03:39:41","73.45.155.83","udp",5353,"c-73-45-155-83.hsd1.il.comcast.net","mdns",7922,"US","ILLINOIS","CHAMPAIGN",518210,737415,,,,"_spotify-connect._tcp.local.;",,,,,,,,,,,
"2016-02-16 03:39:41","213.196.145.112","udp",5353,"catv-145-112.tbwil.ch","mdns",21040,"CH","THURGAU","WILEN BEI WIL",0,0,,,,"_spotify-connect._tcp.local.;",,,,,,,,,,,
"2016-02-16 03:39:41","216.213.96.84","udp",5353,,"mdns",12124,"US","NEW YORK","NEW YORK",0,0,,,,"_workstation._tcp.local.;","ubuntu-2.local.","216.213.96.84","fe80:0:0:0:250:56ff:febe:6cc8","ubuntu-2 [00:50:56:be:6c:c8]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","60.250.78.38","udp",5353,"60-250-78-38.hinet-ip.hinet.net","mdns",3462,"TW","TAICHUNG CITY","TAICHUNG",518210,737415,,,,"_adobe-vc._tcp.local.; _acrobatSRV._tcp.local.;",,,,,,,,,,,
"2016-02-16 03:39:41","121.8.199.28","udp",5353,,"mdns",4134,"CN","GUANGDONG","GUANGZHOU",0,0,,,,"_workstation._tcp.local.; _sftp-ssh._tcp.local.;",,,,,,,,,,,
"2016-02-16 03:39:41","46.101.77.173","udp",5353,,"mdns",202109,"UK","LONDON","LONDON",541512,737999,,,,"_workstation._tcp.local.;","getbet.local.","46.101.77.173 10.16.0.6","fe80:0:0:0:601:82ff:fece:1e01","getbet [04:01:82:ce:1e:01]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","210.73.208.12","udp",5353,,"mdns",23724,"CN","BEIJING","BEIJING",0,0,,,,"_workstation._tcp.local.; _ssh._tcp.local.;","linux-2.local.","210.73.208.12","fe80:0:0:0:250:56ff:fe9b:6348","linux-2 [00:50:56:9b:63:48]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","188.40.101.76","udp",5353,"ty11.tyclipso.net","mdns",24940,"DE","BAYERN","GUNZENHAUSEN",0,0,,,,"_workstation._tcp.local.;","ty11.local.","188.40.101.76","fe80:0:0:0:224:21ff:feef:31da","ty11 [00:24:21:ef:31:da]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","185.72.247.253","udp",5353,,"mdns",47447,"CZ","PRAHA","PRAGUE",0,0,,,,"_workstation._tcp.local.;","nerd.local.","185.72.247.253 185.72.247.34",,"nerd [00:16:3e:a5:1c:56]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","129.217.12.243","udp",5353,"fiws243.cs.uni-dortmund.de","mdns",680,"DE","NORDRHEIN-WESTFALEN","DORTMUND",0,0,,,,"_workstation._tcp.local.; _udisks-ssh._tcp.local.;","fiws243.local.","129.217.12.243","fe80:0:0:0:3617:ebff:fec7:aaad","fiws243  34:17:eb:c7:aa:ad]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","216.213.96.85","udp",5353,,"mdns",12124,"US","NEW YORK","NEW YORK",0,0,,,,"_workstation._tcp.local.;","ubuntu.local.","216.213.96.85","fe80:0:0:0:250:56ff:febe:47ad","ubuntu [00:50:56:be:47:ad]._workstation._tcp.local.",,,,,,,
"2016-02-16 03:39:41","108.178.55.254","udp",5353,"chicago1.escapedturkey.com","mdns",32475,"CA","QUEBEC","SAINT-LAURENT",0,0,,,,"_workstation._tcp.local.; _ssh._tcp.local.; _mumble._tcp.local.;","chicago1.local.","108.178.55.254 108.178.55.253 108.178.55.252 108.178.55.251 108.178.55.250  08.178.55.249 108.178.55","fe80:0:0:0:225:90ff:fe70:9be","chicago1 [00:25:90:70:09:be]._workstation._tcp.local.",,,,,,,

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