Knowledge (XXG)

Header (computing)

Source 📝

70:: The text (body) is preceded by header lines indicating sender, recipient, subject, sending time stamp, receiving time stamps of all intermediate and the final 290: 348: 213: 169: 105: 343: 116: 20: 132: 108:
governing the format of the payload and several other formats. The header's format is specified in the
142:, the header might give information about an image's size, resolution, number of colors, and the like. 312: 250: 165: 139: 207: 146: 71: 37: 286:
Update to Internet Message Format to Allow Group Syntax in the "From:" and "Sender:" Header Fields
100:, the data (payload) are preceded by header information such as the sender's and the recipient's 304: 202: 109: 32: 294: 240: 124: 337: 67: 51: 43: 324: 315: 284: 270: 266: 262: 253: 234: 197: 181: 158: 150: 131:
to allow the receiver to adapt to analog amplitude and speed variations and for
120: 93: 86: 177: 101: 308: 154: 31:
placed at the beginning of a block of data being stored or transmitted. In
128: 97: 16:
Information at the beginning of data which describes or defines the data
55: 299: 245: 78: 50:
It is vital that header composition follows a clear and unambiguous
173: 82: 28: 35:, the data following the header is sometimes called the 8: 298: 244: 225: 127:, typically the header begins with a 7: 161:and corresponding software utility. 149:, the file header might serve as a 14: 233:P. Resnick, ed. (October 2008). 291:Internet Engineering Task Force 1: 210:, used in computer networking 77:Similar headers are used in 365: 327:. 273:. 239:. Network Working Group. 157:to identify the specific 214:Field (computer science) 115:In data packets sent by 54:or format, to allow for 283:B. Leiba (March 2013). 236:Internet Message Format 27:refers to supplemental 269:. Updated by RFC  117:wireless communication 21:information technology 166:programming languages 140:graphics file formats 133:frame synchronization 147:archive file formats 72:mail transfer agents 265:. Updates RFC  261:Obsoletes RFC  208:Trailer (computing) 321:Proposed Standard. 123:of data stored on 349:Data transmission 323:Updates RFC  203:Protocol overhead 110:Internet Protocol 33:data transmission 356: 328: 319: 302: 300:10.17487/RFC6854 280: 274: 257: 248: 246:10.17487/RFC5322 230: 180:are declared in 85:) messages, and 74:, and much more. 364: 363: 359: 358: 357: 355: 354: 353: 334: 333: 332: 331: 282: 281: 277: 259:Draft Standard. 232: 231: 227: 222: 194: 188: 64: 17: 12: 11: 5: 362: 360: 352: 351: 346: 336: 335: 330: 329: 275: 224: 223: 221: 218: 217: 216: 211: 205: 200: 193: 190: 186: 185: 162: 143: 136: 125:magnetic media 113: 90: 75: 63: 60: 15: 13: 10: 9: 6: 4: 3: 2: 361: 350: 347: 345: 344:Computer data 342: 341: 339: 326: 322: 317: 314: 310: 306: 301: 296: 292: 288: 287: 279: 276: 272: 268: 264: 260: 255: 252: 247: 242: 238: 237: 229: 226: 219: 215: 212: 209: 206: 204: 201: 199: 196: 195: 191: 189: 183: 179: 175: 171: 168:(for example 167: 163: 160: 156: 152: 148: 144: 141: 137: 134: 130: 126: 122: 118: 114: 111: 107: 103: 99: 96:sent via the 95: 91: 88: 84: 80: 76: 73: 69: 68:E-mail header 66: 65: 61: 59: 57: 53: 52:specification 48: 46: 45: 40: 39: 34: 30: 26: 22: 320: 285: 278: 258: 235: 228: 187: 182:header files 102:IP addresses 87:HTTP headers 49: 42: 36: 24: 18: 159:file format 151:fingerprint 94:data packet 338:Categories 220:References 309:2070-1721 178:functions 155:signature 119:, and in 192:See also 164:In some 129:syncword 106:protocol 98:Internet 62:Examples 121:sectors 56:parsing 38:payload 307:  198:Footer 176:) the 104:, the 79:Usenet 25:header 92:In a 325:5322 316:6854 305:ISSN 271:6854 267:4021 263:2822 254:5322 172:and 83:NNTP 44:body 29:data 313:RFC 295:doi 251:RFC 241:doi 174:C++ 153:or 145:In 138:In 41:or 19:In 340:: 311:. 303:. 293:. 289:. 249:. 58:. 47:. 23:, 318:. 297:: 256:. 243:: 184:. 170:C 135:. 112:. 89:. 81:(

Index

information technology
data
data transmission
payload
body
specification
parsing
E-mail header
mail transfer agents
Usenet
NNTP
HTTP headers
data packet
Internet
IP addresses
protocol
Internet Protocol
wireless communication
sectors
magnetic media
syncword
frame synchronization
graphics file formats
archive file formats
fingerprint
signature
file format
programming languages
C
C++

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.