sample video note available

[robarnes]

wget http://sample-videos.com/video/mp4/720/big_buck_bunny_720p_30mb.mp4

--2018-01-23 20:44:06-- http://sample-videos.com/video/mp4/720/big_buck_bunny_720p_30mb.mp4
Resolving sample-videos.com (sample-videos.com)... failed: Name or service not known.
wget: unable to resolve host address ‘sample-videos.com’