DNS/BIND/versionについて、ここに記述してください。
dig @192.168.1.1 version.bind txt chaos
63 ;version.bind. CH TXT 2 version.bind. 0 CH TXT "" 1 version.bind. 0 CH TXT "9.11.0-P1" 1 version.bind. 0 CH TXT "9.11.0-P3" 3 version.bind. 0 CH TXT "unknown" 1 version.bind. 0 CH TXT "Zzzz" 1 version.bind. 1476526080 IN TXT "Microsoft DNS 6.0.6002 (1772487D)" 3 version.bind. 1476526080 IN TXT "Microsoft DNS 6.0.6002 (17724C46)" 2 version.bind. 1476526080 IN TXT "Microsoft DNS 6.1.7601 (1DB14556)" 2 version.bind. 1476526080 IN TXT "Microsoft DNS 6.1.7601 (1DB14A66)" 5 version.bind. 1476526080 IN TXT "Microsoft DNS 6.1.7601 (1DB15B4F)"