Sorting Through Results of Revolving IPs from nslookup Results
If you are using something like imap.mail.yahoo.com or outlook.office365.com and would like to add a firewall rule to open the appropriate IPs to access could be quite a challenge. These IPs seem to change often. Here are a couple of command lines that may help sort through this mess. Typically, a simple command would be executed with results. nslookup outlook.office365.com…
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