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whitelist

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.03 sec.
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.


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Having whitelist and blacklist based protection integrated in one solution provides organizations with greater security and compliance while simplifying workstation management for IT departments.
The approach is highly effective, but also expensive to implement, since the administrator must manually construct the whitelist for each protected server.
The guide explains how to apply whitelist validation logic to form input, keep business logic on the server, implement expiration policies, validate all data from public APIs, data mine cascading style sheets, detect JavaScript worms, and test applications for vulnerabilities.
 
 
 
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