The default configuration is suitable.
update: 24 companies added
First, you should check that is a real bingbot, but not fake user agent ;)
For example:
207.46.13.230 - - [27/Feb/2017:03:25:17 +0000] "GET /robots.txt HTTP/1.1" 200 62 "-" "Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)"
host 207.46.13.230
230.13.46.207.in-addr.arpa domain name pointer msnbot-207-46-13-230.search.msn.com
Authorization by cookie, not by password.
That's why HTTPS is good :)
<video></video>
Yep, you are right,
https://www.microsoft.com/en-us/download/confirmation.aspx?id=41653
Even more interesting bot:
13.65.215.166 - - [25/Feb/2017:04:07:29 +0000] "GET /?author=1 HTTP/1.0" 200 15570 "-" "Googlebot/2.1 (+http://www.google.com/bot.html)"
WTF?
https://yandex.ru/support/catalogue/citation-index/tic-calculated.html#tic-data
https://aws.amazon.com/ec2/faqs/#How_many_instances_can_I_run_in_Amazon_EC2
https://aws.amazon.com/support/createCase?type=service_limit_increase&serviceLimitIncreaseType=ec2-instances
