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How to block complex domain names?
Many firewalls support blocking rules for IP and domain names by mask, that is, using the asterisk character ( * ) and the question mark ( ? ), denoting any sequence of characters and any single character, respectively. Therefore, blocking addresses like *.yandex.ru (all subdomains) or 192.178.0.* (all such IP addresses with the last digit in the range 0-255 are blocked) is not a problem. However, what if you want to block domain names with much more complex names?
For example:
https://msedge.*.cdp.microsoft.com
http://msedge.?.tlu.dl.delivery.mp.microsoft.com
*.do.dsp.mp.microsoft.com
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