dns-sdは、Macに接続しているデバイスのIPアドレスを探すのに、便利

対応内容

1. dns-sdの対応しているサービスを表示

$ dns-sd  -B  _services._dns-sd._udp  local.

  Browsing for _services._dns-sd._udp.local.
  DATE: ---Fri 20 May 2016---
  23:54:37.797  ...STARTING...
  Timestamp     A/R Flags  if Domain  Service Type         Instance Name
  23:54:37.798  Add     3   4 .       _tcp.local.          _ssh
  23:54:37.798  Add     3   4 .       _tcp.local.          _sftp-ssh
  23:54:37.798  Add     3   4 .       _tcp.local.          _airplay
  23:54:37.798  Add     3   4 .       _tcp.local.          _raop
  23:54:37.798  Add     3   4 .       _tcp.local.          _googlecast
  23:54:37.798  Add     3   4 .       _tcp.local.          _nomachine
  23:54:37.798  Add     3   4 local.  _apple-mobdev2._tcp. _sub
  23:54:37.798  Add     3   4 .       _tcp.local.          _apple-mobdev2
  23:54:37.798  Add     3   4 .       _tcp.local.          _ipps
  23:54:37.798  Add     3   4 .       _tcp.local.          _ipp
  23:54:37.798  Add     3   4 .       _tcp.local.          _workstation
  23:54:37.798  Add     3   4 .       _tcp.local.          _http
  23:54:37.798  Add     3   4 .       _tcp.local.          _amzn-wplay
  23:54:37.798  Add     3   4 .       _tcp.local.          _rfb
  23:54:37.798  Add     3   4 .       _tcp.local.          _afpovertcp
  23:54:37.798  Add     3   4 .       _tcp.local.          _smb
  23:54:37.798  Add     3   4 .       _udp.local.          _net-assistant
  23:54:37.798  Add     2   4 .       _tcp.local.          _eppc
  ^C

2. デバイスのインスタンス名を探す

$ dns-sd  -B  _ipp._tcp  local.

  Browsing for _ipp._tcp.local.
  DATE: ---Fri 20 May 2016---
  23:54:47.782  ...STARTING...
  Timestamp     A/R  Flags  if Domain  Service Type   Instance Name
  23:54:47.783  Add      3   4 local.  _ipp._tcp.     Officejet6500donna @ mbp
  23:54:47.783  Add      3   4 local.  _ipp._tcp.     raw2dir @ mbp
  23:54:47.783  Add      2   4 local.  _ipp._tcp.     Officejet 6600 @ mbp
  ^C

3. デバイスのインスタンス名から、詳しいIP情報を取得

$ dns-sd  -L  "Officejet 6600 @ mbp"  _ipp._tcp  local.

  Lookup Officejet 6600 @ mbp._ipp._tcp.local.
  DATE: ---Fri 20 May 2016---
  23:54:55.252  ...STARTING...
  23:54:55.253  Officejet\0326600\032@\032mbp._ipp._tcp.local. can be reached at mbp2-2.local.:631 (interface 4)
   txtvers=1 qtotal=1 rp=printers/Officejet_6600 ty=Unknown \
    adminurl=https://mbp2-2.local.:631/printers/Officejet_6600 \
     note=Büro\ im\ Keller priority=0 product=\(Officejet\ 6600\ e-All-in-One\) \
      pdl=application/octet-stream,application/pdf,application/postscript,image/jpeg,image/png,image/pwg-raster \
       UUID=e7d11337-a440-3f2d-7168-b53de4325791 TLS=1.2 Color=T Scan=T \
        printer-state=3 printer-type=0x480900E
  ^C

4. IPアドレス（v4もv6も可）を取得

dns-sd -Gv4v6 mbp2-2.local

  DATE: ---Sat 21 May 2016---
  0:12:41.025  ...STARTING...
  Timestamp     A/R Flags if Hostname    Address                                      TTL
  0:12:41.025  Add  3  4 mbp2-2.local.   FE80:0000:0000:0000:AEBC:32FF:FEAE:CAEB%en0  120
  0:12:41.025  Add  3  4 mbp2-2.local.   FD00:0000:0000:0000:AEBC:32FF:FEAE:CAEB%  120
  0:12:41.025  Add  2  4 mbp2-2.local.   192.168.177.20                               120
  ^C