VirtualBox

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Manual: new security considerations chapter; VRDE/VRDP

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1<?xml version="1.0" encoding="UTF-8"?>
2<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
4<glossary id="Glossary">
5 <glossdiv>
6 <title>A</title>
7
8 <glossentry>
9 <glossterm>ACPI</glossterm>
10
11 <glossdef>
12 <para>Advanced Configuration and Power Interface, an industry
13 specification for BIOS and hardware extensions to configure PC
14 hardware and perform power management. Windows 2000 and higher as well
15 as Linux 2.4 and higher support ACPI. Windows can only enable or
16 disable ACPI support at installation time.</para>
17 </glossdef>
18 </glossentry>
19
20 <glossentry>
21 <glossterm>AHCI</glossterm>
22
23 <glossdef>
24 <para>Advanced Host Controller Interface, the interface that supports
25 SATA devices such as hard disks. See <xref
26 linkend="harddiskcontrollers" />.</para>
27 </glossdef>
28 </glossentry>
29
30 <glossentry>
31 <glossterm>AMD-V</glossterm>
32
33 <glossdef>
34 <para>The hardware virtualization features built into modern AMD
35 processors. See <xref linkend="hwvirt" />.</para>
36 </glossdef>
37 </glossentry>
38
39 <glossentry>
40 <glossterm>API</glossterm>
41
42 <glossdef>
43 <para>Application Programming Interface.</para>
44 </glossdef>
45 </glossentry>
46
47 <glossentry>
48 <glossterm>APIC</glossterm>
49
50 <glossdef>
51 <para>Advanced Programmable Interrupt Controller, a newer version of
52 the original PC PIC (programmable interrupt controller). Most modern
53 CPUs contain an on-chip APIC ("local APIC"). Many systems also contain
54 an I/O APIC (input output APIC) as a separate chip which provides more
55 than 16 IRQs. Windows 2000 and higher use a different kernel if they
56 detect an I/O APIC during installation. Therefore an I/O APIC must not
57 be removed after installation.</para>
58 </glossdef>
59 </glossentry>
60
61 <glossentry>
62 <glossterm>ATA</glossterm>
63
64 <glossdef>
65 <para>Advanced Technology Attachment, an industry standard for hard
66 disk interfaces (synonymous with IDE). See <xref
67 linkend="harddiskcontrollers" />.</para>
68 </glossdef>
69 </glossentry>
70 </glossdiv>
71
72 <glossdiv>
73 <title>B</title>
74
75 <glossentry>
76 <glossterm>BIOS</glossterm>
77
78 <glossdef>
79 <para>Basic Input/Output System, the firmware built into most personal
80 computers which is responsible of initializing the hardware after the
81 computer has been turned on and then booting an operating system.
82 VirtualBox ships with its own virtual BIOS that runs when a virtual
83 machine is started.</para>
84 </glossdef>
85 </glossentry>
86 </glossdiv>
87
88 <glossdiv>
89 <title>C</title>
90
91 <glossentry>
92 <glossterm>COM</glossterm>
93
94 <glossdef>
95 <para>Microsoft Component Object Model, a programming infrastructure
96 for modular software. COM allows applications to provide application
97 programming interfaces which can be accessed from various other
98 programming languages and applications. VirtualBox makes use of COM
99 both internally and externally to provide a comprehensive API to 3rd
100 party developers.</para>
101 </glossdef>
102 </glossentry>
103 </glossdiv>
104
105 <glossdiv>
106 <title>D</title>
107
108 <glossentry>
109 <glossterm>DHCP</glossterm>
110
111 <glossdef>
112 <para>Dynamic Host Configuration Protocol. This allows a networking
113 device in a network to acquire its IP address (and other networking
114 details) automatically, in order to avoid having to configure all
115 devices in a network with fixed IP addresses. VirtualBox has a
116 built-in DHCP server that delivers an IP addresses to a virtual
117 machine when networking is configured to NAT; see <xref
118 linkend="networkingdetails" />.</para>
119 </glossdef>
120 </glossentry>
121
122 <glossentry>
123 <glossterm>DKMS</glossterm>
124
125 <glossdef>
126 <para>Dynamic Kernel Module Support. A framework that simplifies
127 installing and updating external kernel modules on Linux machines; see
128 <xref linkend="externalkernelmodules" />.</para>
129 </glossdef>
130 </glossentry>
131 </glossdiv>
132
133 <glossdiv>
134 <title>E</title>
135
136 <glossentry>
137 <glossterm>EFI</glossterm>
138
139 <glossdef>
140 <para>Extensible Firmware Interface, a firmware built into computers
141 which is designed to replace the aging BIOS. Originally designed by
142 Intel, most modern operating systems can now boot on computers which
143 have EFI instead of a BIOS built into them; see <xref
144 linkend="efi" />.</para>
145 </glossdef>
146 </glossentry>
147
148 <glossentry>
149 <glossterm>EHCI</glossterm>
150
151 <glossdef>
152 <para>Enhanced Host Controller Interface, the interface that
153 implements the USB 2.0 standard.</para>
154 </glossdef>
155 </glossentry>
156 </glossdiv>
157
158 <glossdiv>
159 <title>G</title>
160
161 <glossentry>
162 <glossterm>GUI</glossterm>
163
164 <glossdef>
165 <para>Graphical User Interface. Commonly used as an antonym to a
166 "command line interface", in the context of VirtualBox, we sometimes
167 refer to the main graphical
168 <computeroutput>VirtualBox</computeroutput> program as the "GUI", to
169 differentiate it from the <computeroutput>VBoxManage</computeroutput>
170 interface.</para>
171 </glossdef>
172 </glossentry>
173
174 <glossentry>
175 <glossterm>GUID</glossterm>
176
177 <glossdef>
178 <para>See UUID.</para>
179 </glossdef>
180 </glossentry>
181 </glossdiv>
182
183 <glossdiv>
184 <title>I</title>
185
186 <glossentry>
187 <glossterm>IDE</glossterm>
188
189 <glossdef>
190 <para>Integrated Drive Electronics, an industry standard for hard disk
191 interfaces. See <xref linkend="harddiskcontrollers" />.</para>
192 </glossdef>
193 </glossentry>
194
195 <glossentry>
196 <glossterm>I/O APIC</glossterm>
197
198 <glossdef>
199 <para>See APIC.</para>
200 </glossdef>
201 </glossentry>
202
203 <glossentry>
204 <glossterm>iSCSI</glossterm>
205
206 <glossdef>
207 <para>Internet SCSI; see <xref linkend="storage-iscsi" />.</para>
208 </glossdef>
209 </glossentry>
210 </glossdiv>
211
212 <glossdiv>
213 <title>M</title>
214
215 <glossentry>
216 <glossterm>MAC</glossterm>
217
218 <glossdef>
219 <para>Media Access Control, a part of an Ethernet network card. A MAC
220 address is a 6-byte number which identifies a network card. It is
221 typically written in hexadecimal notation where the bytes are
222 separated by colons, such as
223 <computeroutput>00:17:3A:5E:CB:08</computeroutput>.</para>
224 </glossdef>
225 </glossentry>
226
227 <glossentry>
228 <glossterm>MSI</glossterm>
229
230 <glossdef>
231 <para>Message Signalled Interrupts, as supported by modern chipsets
232 such as the ICH9; see <xref linkend="settings-motherboard" />. As
233 opposed to traditional pin-based interrupts, with MSI, a small amount
234 of data can accompany the actual interrupt message. This reduces the
235 amount of hardware pins required, allows for more interrupts and
236 better performance.</para>
237 </glossdef>
238 </glossentry>
239 </glossdiv>
240
241 <glossdiv>
242 <title>N</title>
243
244 <glossentry>
245 <glossterm>NAT</glossterm>
246
247 <glossdef>
248 <para>Network Address Translation. A technique to share networking
249 interfaces by which an interface modifies the source and/or target IP
250 addresses of network packets according to specific rules. Commonly
251 employed by routers and firewalls to shield an internal network from
252 the Internet, VirtualBox can use NAT to easily share a host's physical
253 networking hardware with its virtual machines. See <xref
254 linkend="network_nat" />.</para>
255 </glossdef>
256 </glossentry>
257 </glossdiv>
258
259 <glossdiv>
260 <title>O</title>
261
262 <glossentry>
263 <glossterm>OVF</glossterm>
264
265 <glossdef>
266 <para>Open Virtualization Format, a cross-platform industry standard
267 to exchange virtual appliances between virtualization products; see
268 <xref linkend="ovf" />.</para>
269 </glossdef>
270 </glossentry>
271 </glossdiv>
272
273 <glossdiv>
274 <title>P</title>
275
276 <glossentry>
277 <glossterm>PAE</glossterm>
278
279 <glossdef>
280 <para>Physical Address Extension. This allows accessing more than 4 GB
281 of RAM even in 32-bit environments; see <xref
282 linkend="settings-general-advanced" />.</para>
283 </glossdef>
284 </glossentry>
285
286 <glossentry>
287 <glossterm>PIC</glossterm>
288
289 <glossdef>
290 <para>See APIC.</para>
291 </glossdef>
292 </glossentry>
293
294 <glossentry>
295 <glossterm>PXE</glossterm>
296
297 <glossdef>
298 <para>Preboot Execution Environment, an industry standard for booting
299 PC systems from remote network locations. It includes DHCP for IP
300 configuration and TFTP for file transfer. Using UNDI, a hardware
301 independent driver stack for accessing the network card from bootstrap
302 code is available.</para>
303 </glossdef>
304 </glossentry>
305 </glossdiv>
306
307 <glossdiv>
308 <title>R</title>
309
310 <glossentry>
311 <glossterm>RDP</glossterm>
312
313 <glossdef>
314 <para>Remote Desktop Protocol, a protocol developed by Microsoft as an
315 extension to the ITU T.128 and T.124 video conferencing protocol. With
316 RDP, a PC system can be controlled from a remote location using a
317 network connection over which data is transferred in both directions.
318 Typically graphics updates and audio are sent from the remote machine
319 and keyboard and mouse input events are sent from the client. A
320 VirtualBox extension package by Oracle provides VRDP, an enhanced
321 implementation of the relevant standards which is largely compatible
322 with Microsoft's RDP implementation. See <xref linkend="vrde" /> for
323 details.</para>
324 </glossdef>
325 </glossentry>
326 </glossdiv>
327
328 <glossdiv>
329 <title>S</title>
330
331 <glossentry>
332 <glossterm>SAS</glossterm>
333
334 <glossdef>
335 <para>Serial Attached SCSI, an industry standard for hard disk
336 interfaces. See <xref linkend="harddiskcontrollers" />.</para>
337 </glossdef>
338 </glossentry>
339
340 <glossentry>
341 <glossterm>SATA</glossterm>
342
343 <glossdef>
344 <para>Serial ATA, an industry standard for hard disk interfaces. See
345 <xref linkend="harddiskcontrollers" />.</para>
346 </glossdef>
347 </glossentry>
348
349 <glossentry>
350 <glossterm>SCSI</glossterm>
351
352 <glossdef>
353 <para>Small Computer System Interface. An industry standard for data
354 transfer between devices, especially for storage. See <xref
355 linkend="harddiskcontrollers" />.</para>
356 </glossdef>
357 </glossentry>
358
359 <glossentry>
360 <glossterm>SMP</glossterm>
361
362 <glossdef>
363 <para>Symmetrical Multiprocessing, meaning that the resources of a
364 computer are shared between several processors. These can either be
365 several processor chips or, as is more common with modern hardware,
366 multiple CPU cores in one processor.</para>
367 </glossdef>
368 </glossentry>
369 </glossdiv>
370
371 <glossdiv>
372 <title>T</title>
373
374 <glossentry>
375 <glossterm>TAR</glossterm>
376
377 <glossdef>
378 <para>A widely used file format for archiving. Originally, this stood
379 for "Tape ARchive" and was already supported by very early Unix
380 versions for backing up data on tape. The file format is still widely
381 used today, for example, with OVF archives (with an
382 <computeroutput>.ova</computeroutput> file extension); see <xref
383 linkend="ovf" />.</para>
384 </glossdef>
385 </glossentry>
386 </glossdiv>
387
388 <glossdiv>
389 <title>U</title>
390
391 <glossentry>
392 <glossterm>UUID</glossterm>
393
394 <glossdef>
395 <para>A Universally Unique Identifier -- often also called GUID
396 (Globally Unique Identifier) -- is a string of numbers and letters
397 which can be computed dynamically and is guaranteed to be unique.
398 Generally, it is used as a global handle to identify entities.
399 VirtualBox makes use of UUIDs to identify VMs, Virtual Disk Images
400 (VDI files) and other entities.</para>
401 </glossdef>
402 </glossentry>
403 </glossdiv>
404
405 <glossdiv>
406 <title>V</title>
407
408 <glossentry>
409 <glossterm>VM</glossterm>
410
411 <glossdef>
412 <para>Virtual Machine -- a virtual computer that VirtualBox allows you
413 to run on top of your actual hardware. See <xref
414 linkend="virtintro" /> for details.</para>
415 </glossdef>
416 </glossentry>
417
418 <glossentry>
419 <glossterm>VMM</glossterm>
420
421 <glossdef>
422 <para>Virtual Machine Manager -- the component of VirtualBox that
423 controls VM execution. See <xref linkend="technical-components" /> for
424 a list of VirtualBox components.</para>
425 </glossdef>
426 </glossentry>
427
428 <glossentry>
429 <glossterm>VRDE</glossterm>
430
431 <glossdef>
432 <para>VirtualBox Remote Desktop Extension. This interface is built
433 into VirtualBox to allow VirtualBox extension packages to supply
434 remote access to virtual machines. A VirtualBox extension package by
435 Oracle provides VRDP support; see <xref linkend="vrde" /> for
436 details.</para>
437 </glossdef>
438 </glossentry>
439
440 <glossentry>
441 <glossterm>VRDP</glossterm>
442
443 <glossdef>
444 <para>See RDP.</para>
445 </glossdef>
446 </glossentry>
447
448 <glossentry>
449 <glossterm>VT-x</glossterm>
450
451 <glossdef>
452 <para>The hardware virtualization features built into modern Intel
453 processors. See <xref linkend="hwvirt" />.</para>
454 </glossdef>
455 </glossentry>
456 </glossdiv>
457
458 <glossdiv>
459 <title>X</title>
460
461 <glossentry>
462 <glossterm>XML</glossterm>
463
464 <glossdef>
465 <para>The eXtensible Markup Language, a metastandard for all kinds of
466 textual information. XML only specifies how data in the document is
467 organized generally and does not prescribe how to semantically
468 organize content.</para>
469 </glossdef>
470 </glossentry>
471
472 <glossentry>
473 <glossterm>XPCOM</glossterm>
474
475 <glossdef>
476 <para>Mozilla Cross Platform Component Object Model, a programming
477 infrastructure developed by the Mozilla browser project which is
478 similar to Microsoft COM and allows applications to provide a modular
479 programming interface. VirtualBox makes use of XPCOM on Linux both
480 internally and externally to provide a comprehensive API to
481 third-party developers.</para>
482 </glossdef>
483 </glossentry>
484 </glossdiv>
485</glossary>
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