HTTP header


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HTTP header

A record sent by clients and servers communicating with each other via the HTTP protocol. The header is a stream of text that may be sent without any content following it or with the content that it describes. There are headers specific to requests and to responses and others that are used for both client and server to describe or query the content or environment. An example of a common request header sent to the server is If-Modified-Since. The server returns the file only if it has been changed since a certain date and time. See HTTP.
References in periodicals archive ?
On a tier-1operators 2G and 3G network, subscribers suspected of using HTTP header injection to commit fraud averaged 805MB of usage each month.
It is an intermediate entity that filters HTTP headers and removes Java and JavaScript for Web browsing.
US recently validated and today announced that business website owners interested in protecting their site visitors from privacy invasion and their customer information exchanges and transactions from unauthorized snooping, personal/financial information collection and smartphone/online activity tracking can rely on their trademarked speedy secure responsive web design methodology ssRwd[TM] to permanently prevent the permacookies and undo the unoptoutability of the unique identifiers that might be injected into their HTTP headers by Verizon, ATT/AT&T and other Internet service providers large and small.
According to Sourcefire, Apache Killer uses large malformed HTTP headers to enable an attacker to use a single PC to perform a denial of service attack.
The protocol still uses HTTP headers, but it overrides other parts of the protocol, such as connection management and data transfer formats.
5 features advanced problem identification, enhanced Screen Capture on Error capability, HTTP headers to help users understand browser-server interactions and Traceroutes on Error to pinpoint network-related problems.