header in Wiktionary, the free dictionary. Header may refer to: Header (computing), supplemental data at the beginning of a data block E-mail header HTTP...

precompiled headers may significantly reduce compilation time, especially when applied to large header files, header files that include many other header files...

header. Each email message has a header (the "header section" of the message, according to the specification), comprising a number of fields ("header...

In typography and word processing, a page header (or simply header) is text that is separated from the body text and appears at the top of a printed page...

using a pseudo header that contains some of the same information from the real IPv4 header.: 2  The pseudo header is not the real IPv4 header used to send...

unauthenticated) IPv4 header fields are DSCP/ToS, ECN, Flags, Fragment Offset, TTL and Header Checksum. In IPv6, the AH protects most of the IPv6 base header, AH itself...

HTTP header fields are a list of strings sent and received by both the client program and server on every HTTP request and response. These headers are...

An IP header is header information at the beginning of an Internet Protocol (IP) packet. An IP packet is the smallest message entity exchanged via the...

In information technology, header refers to supplemental data placed at the beginning of a block of data being stored or transmitted. In data transmission...

first header field in an IP packet is the Version field. For IPv4, this is always equal to 4. Internet Header Length (IHL): 4 bits The IPv4 header is variable...

A pin header (or simply, header) is a form of electrical connector. A male pin header consists of one or more rows of metal pins molded into a plastic...

HTTP header injection is a general class of web application security vulnerability which occurs when Hypertext Transfer Protocol (HTTP) headers are dynamically...

also called the IPv4 header checksum is a checksum used in version 4 of the Internet Protocol (IPv4) to detect corruption in the header of IPv4 packets. It...

format, but it does not contain the 14-byte bitmap file header and begins with the DIB header. For DIBs loaded in memory, the color table can also consist...

the combined length of the segment header and IP header from the total IP datagram length specified in the IP header.[citation needed] Source Port: 16...

Header bidding is a programmatic advertising strategy where publishers offer their ad inventory to multiple ad exchanges simultaneously before making calls...

client–server system. The HTTP User-Agent header is intended to clearly identify the agent to the server. However, this header can be omitted or spoofed, so some...

information in IPv6 packets is subdivided into a mandatory fixed header and optional extension headers. The payload of an IPv6 packet is typically a datagram or...

numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol...

Do Not Track (DNT) is a formerly official HTTP header field, designed to allow internet users to opt out of tracking by websites—which includes the collection...

Look up tripleheader in Wiktionary, the free dictionary. Triple header or variant thereof, may refer to: Baseball tripleheader, three baseball games on...

an IP datagram first decrements the time to live (TTL) field in the IP header by one. If the resulting TTL is 0, the packet is discarded and an ICMP time...

Header is a 2006 horror film directed by Archibald Flancranstin, and written Michael E. Kennedy. It is based on the 1995 novella Header by Edward Lee...

Look up doubleheader or double-header in Wiktionary, the free dictionary. Doubleheader or double header may refer to: Doubleheader (baseball), two baseball...

functions, some of the HTTP headers (found in HTTP requests/responses) are managed hop-by-hop whereas other HTTP headers are managed end-to-end (managed...

The X-Forwarded-For (XFF) HTTP header field is a common method for identifying the originating IP address of a client connecting to a web server through...

directly, use IP protocol type 47 in the IPv4 header's Protocol field or the IPv6 header's Next Header field. For performance reasons, GRE can also be...

packet at the physical layer. Each Ethernet frame starts with an Ethernet header, which contains destination and source MAC addresses as its first two fields...

inappropriate headers would be inefficient. To have a server check the request's headers, a client must send Expect: 100-continue as a header in its initial...

called header-only if the full definitions of all macros, functions and classes comprising the library are visible to the compiler in a header file form...