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  2. Wildcard DNS record - Wikipedia

    en.wikipedia.org/wiki/Wildcard_DNS_record

    A wildcard DNS record is a record in a DNS zone that will match requests for non-existent domain names. A wildcard DNS record is specified by using a * as the leftmost label (part) of a domain name, e.g. *.example.com. The exact rules for when a wildcard will match are specified in RFC 1034, but the rules are neither intuitive nor clearly ...

  3. DNS Certification Authority Authorization - Wikipedia

    en.wikipedia.org/wiki/DNS_Certification...

    This property authorizes the holder of the domain specified in the associated property value to issue certificates for the domain for which the property is published. issuewild This property acts like issue but only authorizes the issuance of wildcard certificates, and takes precedence over the issue property for wildcard certificate requests ...

  4. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    The Domain Name System (DNS) is a ... DNS records belonging to wildcard domain names specify rules for generating resource records within a single DNS zone by ...

  5. Wild card - Wikipedia

    en.wikipedia.org/wiki/Wild_Card

    Wildcard character, a character that substitutes for any other character or character range in regular expressions and globbing; Wildcard DNS record, a record in a DNS zone file that will match all requests for non-existent domain names; Wildcard mask, a netmask that swaps 1 to 0 and 0 to 1 compared to the normal netmask

  6. How to Block Annoying Emails for Good - AOL

    www.aol.com/block-annoying-emails-good-190739065...

    apple iphone virus warning; overhead view of a smartphone on a light wood background with an alert symbol on the screen

  7. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    An example of a wildcard certificate on comifuro.net (note the asterisk: *) A public key certificate which uses an asterisk * (the wildcard) in its domain name fragment is called a Wildcard certificate. Through the use of *, a single certificate may be used for multiple sub-domains.

  8. Manage spam and privacy in AOL Mail

    help.aol.com/articles/aol-mail-spam-and-privacy

    Select the email. Click Spam.; If you're given the option, click Unsubscribe and you will no longer receive messages from the mailing list. If you click the "Mark as Spam" icon, the message will be marked as spam and moved into the spam folder.

  9. Keep your inbox clean by blocking unwanted mail in AOL ...

    help.aol.com/articles/keep-your-inbox-clean-by...

    Block email addresses from the read email view 1. Sign in to Desktop Gold. 2. Open the read email view. 3. Right click on the email address. 4.