whitelist

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Dictionary

whitelist

(1) A list of e-mail addresses that a mail server or e-mail client program is configured to accept as valid, incoming mail. E-mail filtering that relies entirely on whitelists is severely...

Dictionary

Definition: whitelist

(1) A list of e-mail addresses that a mail server or e-mail client program is configured to accept as valid, incoming mail. E-mail filtering that relies entirely on whitelists is severely restricted because only messages from addresses on the list are allowed, and all the rest are discarded. See spam filter. Contrast with blacklist.

(2) A list of valid domain names that a mail server is configured to accept. All mail from users with that domain are allowed. Contrast with blacklist.

(3) A list of Web sites that are allowed to be accessed. A company can configure its routers and firewalls to allow only certain Web sites to be accessed, because they relate to business. Contrast with blacklist.

(4) A list of applications that a user is authorized to run in an organization. Maintained by the system or network administrator, when the application is run, software in the user's computer may check the program for integrity to ensure it has not been compromised. Contrast with blacklist.



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Additional Results

  • Blacklists vs. whitelists

    I hate whitelists. They irritate me no end in educational settings. Of course, they irritate me anywhere, but businesses can do what they want with their networks. In educational settings,...

    Blog posts | April 30, 2009 10:28am PDT

  • Are you a whitelist or a blacklist guy?

    A new teacher asked me that the other day, looking for a read on how I filter content and my general attitude on installing applications. Suffice to say I'm a blacklist guy. Certainly in a...

    Blog posts | October 1, 2008 10:39am PDT

  • Antivirus is 'completely wasted money': Cisco CSO

    Companies are wasting money on security processes--such as applying patches and using antivirus software--which just don't work says Cisco's chief security officer.

    News items | May 21, 2008 5:41am PDT

  • Whitelists: The weapon of choice against spam

    It's time for the same technology and service providers that made spam possible to figure out how to make this growing nuisance impossible, or at least improbable. I'm betting on whitelists as...

    News items | December 5, 2002 12:00am PST

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