This file is indexed.

/usr/share/doc/privoxy/faq/general.html is in privoxy 3.0.24-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>General Information</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="Privoxy Frequently Asked Questions"
HREF="index.html"><LINK
REL="PREVIOUS"
TITLE="Privoxy Frequently Asked Questions"
HREF="index.html"><LINK
REL="NEXT"
TITLE="Installation"
HREF="installation.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="../p_doc.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html;
charset=ISO-8859-1"></HEAD
><BODY
CLASS="SECT1"
BGCOLOR="#EEEEEE"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>Privoxy Frequently Asked Questions</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="index.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="installation.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="GENERAL"
>1. General Information</A
></H1
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="WHO-USES"
>1.1. Who should give <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> a try?</A
></H3
><P
>  Anyone who is interested in security, privacy, or in
  finer-grained control over their web and Internet experience.
 </P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="BESTCHOICE"
>1.2. Is Privoxy the best choice for
me?</A
></H3
><P
>  <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is certainly a good choice, especially for those who want more
  control and security. Those with the willingness to read the documentation
  and the ability to fine-tune their installation will benefit the most.
 </P
><P
>  One of <SPAN
CLASS="APPLICATION"
>Privoxy's</SPAN
>
  strengths is that it is highly configurable giving you the ability to
  completely personalize your installation. Being familiar with, or at least
  having an interest in learning about <A
HREF="http://en.wikipedia.org/wiki/Http"
TARGET="_top"
>HTTP</A
> and other networking
  protocols, <A
HREF="http://en.wikipedia.org/wiki/Html"
TARGET="_top"
>HTML</A
>, and
  <A
HREF="http://en.wikipedia.org/wiki/Regular_expressions"
TARGET="_top"
><SPAN
CLASS="QUOTE"
>"Regular
  Expressions"</SPAN
></A
>
  will be a big plus and will help you get the most out of <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>.
  A new installation just includes a very basic configuration. The user
  should take this as a starting point only, and enhance it as he or she
  sees fit. In fact, the user is encouraged, and expected to, fine-tune the
  configuration.
 </P
><P
>  Much of <SPAN
CLASS="APPLICATION"
>Privoxy's</SPAN
> configuration can be done
  with a <A
HREF="http://en.wikipedia.org/wiki/Web_browser"
TARGET="_top"
>Web browser</A
>.
  But there are areas where configuration is done using a
  <A
HREF="http://en.wikipedia.org/wiki/Text_editors"
TARGET="_top"
>text editor</A
>
  to edit configuration files. Also note that the web-based action editor
  doesn't use authentication and should only be enabled in environments
  where all clients with access to <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> listening port can be trusted.
  </P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="PROXYMORON"
>1.3. What is a <SPAN
CLASS="QUOTE"
>"proxy"</SPAN
>? How does
Privoxy work?</A
></H3
><P
>  A <A
HREF="http://en.wikipedia.org/wiki/Proxy_server"
TARGET="_top"
>web proxy</A
>
  is a service, based on a software such as <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>, that clients
  (i.e. browsers) can use instead of connecting to web servers directly.
  The clients then ask the proxy to request objects (web pages, images, movies etc)
  on their behalf and to forward the data to the clients.
  It is a <SPAN
CLASS="QUOTE"
>"go-between"</SPAN
>. For details, see
  <A
HREF="http://en.wikipedia.org/wiki/Proxy_server"
TARGET="_top"
>Wikipedia's proxy definition</A
>.
 </P
><P
>  There are many reasons to use web proxies, such as security (firewalling),
  efficiency (caching) and others, and there are any number of proxies
  to accommodate those needs.
 </P
><P
>  <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is a proxy that is primarily focused on
  privacy enhancement, ad and junk elimination and freeing the user from
  restrictions placed on his activities. Sitting between your browser(s) and the Internet,
  it is in a perfect position to filter outbound personal information that your
  browser is leaking, as well as inbound junk. It uses a variety of techniques to do
  this, all of which are under your complete control via the various configuration
  files and options. Being a proxy also makes it easier to share
  configurations among multiple browsers and/or users.
 </P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="OTHERSTUFF"
>1.4. Does Privoxy do anything more than ad blocking?</A
></H3
><P
>  Yes, ad blocking is but one possible use. There are many, many ways <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>
  can be used to sanitize and customize web browsing.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="NEWJB"
>1.5. What is this new version of
<SPAN
CLASS="QUOTE"
>"Junkbuster"</SPAN
>?</A
></H3
><P
> A long time ago, there was the <SPAN
CLASS="APPLICATION"
>Internet Junkbuster</SPAN
>,
 by Anonymous Coders and Junkbusters Corporation. This saved many users a lot of
 pain in the early days of  web advertising and user tracking.</P
><P
> But the web, its protocols and standards, and with it, the techniques for
 forcing ads on users, give up autonomy over their browsing, and
 for tracking them, keeps evolving. Unfortunately, the <SPAN
CLASS="APPLICATION"
>Internet
 Junkbuster</SPAN
> did not. Version 2.0.2, published in 1998, was
 the last official release, available from Junkbusters Corporation.
 Fortunately, it had been released under the GNU
 <A
HREF="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
TARGET="_top"
>GPL</A
>,
 which allowed further development by others.</P
><P
> So Stefan Waldherr started maintaining an improved version of the
 software, to which eventually a number of people contributed patches.
 It could already replace banners with a transparent image, and had a first
 version of pop-up killing, but it was still very closely based on the
 original, with all its limitations, such as the lack of HTTP/1.1 support,
 flexible per-site configuration, or content modification. The last release
 from this effort was version 2.0.2-10, published in 2000.</P
><P
> Then, some
 <A
HREF="http://www.privoxy.org/user-manual/copyright.html#AUTHORS"
TARGET="_top"
>developers</A
>
 picked up the thread, and started turning the software inside out, upside down,
 and then reassembled it, adding many
 <A
HREF="http://www.privoxy.org/user-manual/introduction.html#FEATURES"
TARGET="_top"
>new
 features</A
> along the way.</P
><P
> The result of this is <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>, whose first
 stable version, 3.0, was released August, 2002.
 </P
><P
> As of 2012 the Junkbusters Corporation's website (http://www.junkbusters.com/)
 has been shut down, but Privoxy is still actively maintained.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="AEN82"
>1.6. Why <SPAN
CLASS="QUOTE"
>"Privoxy"</SPAN
>? Why change the name from
Junkbuster at all?</A
></H3
><P
> Though outdated, Junkbusters Corporation continued to offer their original
 version of the <SPAN
CLASS="APPLICATION"
>Internet Junkbuster</SPAN
> for a while,
 so publishing our <SPAN
CLASS="APPLICATION"
> Junkbuster</SPAN
>-derived software
 under the same name would have led to confusion.</P
><P
> There were also potential legal reasons not to use the
 <SPAN
CLASS="APPLICATION"
>Junkbuster</SPAN
> name, as it was (and maybe still is)
 a registered trademark of Junkbusters Corporation.
 There were, however, no objections from Junkbusters Corporation to the
 <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> project itself, and they, in fact,
 shared our ideals and goals.</P
><P
> The Privoxy developers also believed that there were so many improvements
 over the original code, that it was time to make a clean break from the past
 and make a name in their own right.</P
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is the
 <SPAN
CLASS="QUOTE"
>"<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Privacy Enhancing Proxy</I
></SPAN
>"</SPAN
>. Also, its content
 modification and junk suppression gives <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>you</I
></SPAN
>, the user, more
 control, more freedom, and allows you to browse your personal and
 <SPAN
CLASS="QUOTE"
>"<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>private</I
></SPAN
> edition"</SPAN
> of the web.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="DIFFERS"
>1.7. How does Privoxy differ
from the old Junkbuster?</A
></H3
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> picks up where
 <SPAN
CLASS="APPLICATION"
>Junkbuster</SPAN
> left off.
 <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> still blocks ads and banners,
 still manages <A
HREF="http://en.wikipedia.org/wiki/Browser_cookie"
TARGET="_top"
>cookies</A
>, and still
 helps protect your privacy. But, most of these features have been enhanced,
 and many new ones have been added, all in the same vein.
 </P
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>'s new features include:</P
><P
> <P
></P
><UL
><LI
><P
>     Supports "Connection: keep-alive". Outgoing connections can
     be kept alive independently from the client.
  </P
></LI
><LI
><P
>     Supports IPv6, provided the operating system does so too,
     and the configure script detects it.
  </P
></LI
><LI
><P
>     Supports tagging which allows to change the behaviour
     based on client and server headers.
  </P
></LI
><LI
><P
>     Can be run as an "intercepting" proxy, which obviates the need to
     configure browsers individually.
  </P
></LI
><LI
><P
>     Sophisticated actions and filters for manipulating both server and client
     headers.
   </P
></LI
><LI
><P
>     Can be chained with other proxies.
  </P
></LI
><LI
><P
>   Integrated browser-based configuration and control utility at <A
HREF="http://config.privoxy.org/"
TARGET="_top"
>http://config.privoxy.org/</A
>
   (shortcut: <A
HREF="http://p.p/"
TARGET="_top"
>http://p.p/</A
>). Browser-based
   tracing of rule and filter effects. Remote toggling.
  </P
></LI
><LI
><P
>   Web page filtering (text replacements, removes banners based on size,
   invisible <SPAN
CLASS="QUOTE"
>"web-bugs"</SPAN
> and HTML annoyances, etc.)
  </P
></LI
><LI
><P
>   Modularized configuration that allows for standard settings and
   user settings to reside in separate files, so that installing updated
   actions files won't overwrite individual user settings.
  </P
></LI
><LI
><P
>   Support for Perl Compatible Regular Expressions in the configuration files, and
   a more sophisticated and flexible configuration syntax.
  </P
></LI
><LI
><P
>   GIF de-animation.
  </P
></LI
><LI
><P
>   Bypass many click-tracking scripts (avoids script redirection).
  </P
></LI
><LI
><P
>   User-customizable HTML templates for most proxy-generated pages (e.g. "blocked" page).
  </P
></LI
><LI
><P
>   Auto-detection and re-reading of config file changes.
  </P
></LI
><LI
><P
>   Most features are controllable on a per-site or per-location basis.
  </P
></LI
><LI
><P
>   Many smaller new features added, limitations and bugs removed.
  </P
></LI
></UL
></P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="WHATSANAD"
>1.8. How does Privoxy know what is
an ad, and what is not?</A
></H3
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>'s approach to blocking ads is twofold:</P
><P
> First, there are certain patterns in the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>locations</I
></SPAN
> (URLs)
 of banner images. This applies to both the path (you wouldn't guess how many
 web sites serve their banners from a directory called <SPAN
CLASS="QUOTE"
>"banners"</SPAN
>!)
 and the host (blocking the big banner hosting services like doublecklick.net
 already helps a lot). <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> takes advantage of this
 fact by using <A
HREF="../user-manual/actions-file.html#AF-PATTERNS"
TARGET="_top"
>URL
 patterns</A
> to sort out and block the requests for things that sound
 like they would be ads or banners.</P
><P
> Second, banners tend to come in certain <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>sizes</I
></SPAN
>. But you
 can't tell the size of an image by its URL without downloading it, and if you
 do, it's too late to save bandwidth. Therefore, <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>
 also inspects the HTML sources of web pages while they are loaded, and replaces
 references to images with standard banner sizes by dummy references, so that
 your browser doesn't request them anymore in the first place.</P
><P
> Both of this involves a certain amount of guesswork and is, of course, freely
 and readily configurable.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="AEN158"
>1.9. Can Privoxy make mistakes?
This does not sound very scientific.</A
></H3
><P
> Actually, it's a black art ;-) And yes, it is always possible to have a broad
 rule accidentally block or change something by mistake. You will almost surely
 run into such situations at some point. It is tricky writing rules to
 cover every conceivable possibility, and not occasionally get false positives.</P
><P
> But this should not be a big concern since the
 <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> configuration is very flexible, and
 includes tools to help identify these types of situations so they can be
 addressed as needed, allowing you to customize your installation.
 (<A
HREF="trouble.html#BADSITE"
>See the Troubleshooting section below</A
>.)</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="AEN164"
>1.10. Will I have to configure Privoxy
 before I can use it?</A
></H3
><P
> That depends on your expectations.
 The default installation should give you a good starting
 point, and block <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>most</I
></SPAN
> ads and unwanted content,
 but many of the more advanced features are off by default, and require
 you to activate them.</P
><P
> You do have to set up your browser to use
 <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> (see the <A
HREF="installation.html#FIRSTSTEP"
>Installation section below</A
>).</P
><P
> And you will certainly run into situations where there are false positives,
 or ads not being blocked that you may not want to see. In these cases, you
 would certainly benefit by customizing <SPAN
CLASS="APPLICATION"
>Privoxy's</SPAN
>
 configuration to more closely match your individual situation. And we
 encourage you to do this. This is where the real power of
 <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> lies!</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="LAN"
>1.11. Can Privoxy run as a server on a network?</A
></H3
><P
>  Yes, <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> runs as a server already, and can easily be configured to
  <SPAN
CLASS="QUOTE"
>"serve"</SPAN
> more than one client. See <A
HREF="configuration.html#LANCONFIG"
>  How can I set up Privoxy to act as a proxy for my LAN</A
> below.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="BROWSERS2"
>1.12. My browser does the same things as
Privoxy. Why should I use Privoxy at all?</A
></H3
><P
>  Modern browsers do indeed have <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>some</I
></SPAN
> of the same
  functionality as <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>. Maybe this is
  adequate for you. But <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is very
  versatile and powerful, and can probably do a number of things
  your browser just can't.
 </P
><P
>  In addition, a proxy is good choice if you use multiple browsers, or
  have a LAN with multiple computers since <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> can run as a server
  application. This way all the configuration is in one place, and you don't
  have to maintain a similar configuration for possibly many browsers or
  users.
 </P
><P
>  Note, however, that it's recommended to leverage both your browser's
  and <SPAN
CLASS="APPLICATION"
>Privoxy's</SPAN
> privacy enhancing features
  at the same time. While your browser probably lacks some features
  <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> offers, it should also be able to do some things more
  reliably, for example restricting and suppressing JavaScript.
 </P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="WHYTRUST"
>1.13. Why should I trust Privoxy?</A
></H3
><P
>  The most important reason is because you have access to
  <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>everything</I
></SPAN
>, and you can control everything. You can
  check every line of every configuration file yourself. You can check every
  last bit of source code should you desire. And even if you can't read code,
  there should be some comfort in knowing that other people can,
  and do read it. You can build the software from scratch, if you want,
  so that you know the executable is clean, and that it is
  <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>yours</I
></SPAN
>. In fact, we encourage this level of scrutiny. It
  is one reason we use <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> ourselves.
 </P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="LICENSE"
>1.14. Is there is a license or fee? What about a
warranty? Registration?</A
></H3
><P
>  <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is free software and licensed under the <A
HREF="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
TARGET="_top"
>GNU General Public License (GPL) version 2</A
>.
  It is free to use, copy, modify or distribute as you wish under the terms of this
  license.  Please see the <A
HREF="copyright.html"
>Copyright</A
> section for more
  information on the license and copyright. Or the <TT
CLASS="FILENAME"
>LICENSE</TT
> file
  that should be included.
 </P
><P
>  There is <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>no warranty</I
></SPAN
> of any kind, expressed, implied or otherwise.
  That is something that would cost real money ;-) There is no registration either.
 </P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="SPYWARE"
>1.15. Can Privoxy remove spyware? Adware? Viruses?</A
></H3
><P
> No, at least not reliably enough to trust it. <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is not designed to be
 a malware removal tool and the default configuration doesn't even try to
 filter out any malware.</P
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> could help prevent contact from (known) sites that use such
 tactics with appropriate configuration rules, and thus could conceivably
 prevent contamination from such sites. However, keeping such a configuration
 up to date would require a lot of time and effort that would be better spend
 on keeping your software itself up to date so it doesn't have known
 vulnerabilities.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="OTHERADS"
>1.16. Can I use Privoxy with other ad-blocking software?</A
></H3
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> should work fine with other proxies and other software in general.</P
><P
> But it is probably not necessary to use <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> in conjunction with other
 ad-blocking products, and this could conceivably cause undesirable results.
 It might be better to choose one software or the other and work a little to
 tweak its configuration to your liking.</P
><P
> Note that this is an advice specific to ad blocking.</P
></DIV
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
NAME="HELP-THE-DEVELOPERS"
>1.17. I would like to help you, what can I do?</A
></H3
><DIV
CLASS="SECT3"
><H4
CLASS="SECT3"
><A
NAME="PARTICIPATE"
>1.17.1. Would you like to participate?</A
></H4
><P
>   Well, we <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>always</I
></SPAN
> need help. There is something for
   everybody who wants to help us. We welcome new developers, packagers,
   testers, documentation writers or really anyone with a desire to help in
   any way. You <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>DO NOT</I
></SPAN
> need to be a
   <SPAN
CLASS="QUOTE"
>"programmer"</SPAN
>. There are many other tasks available. In fact,
   the programmers often can't spend as much time programming because of some
   of the other, more mundane things that need to be done, like checking the
   Tracker feedback sections or responding to user questions on the mailing
   lists.
 </P
><P
>  So first thing, subscribe to the <A
HREF="https://lists.sourceforge.net/lists/listinfo/ijbswa-users"
TARGET="_top"
>Privoxy Users</A
>
  or the <A
HREF="https://lists.sourceforge.net/lists/listinfo/ijbswa-developers"
TARGET="_top"
>Privoxy
  Developers</A
> mailing list, join the discussion, help out other users, provide general
  feedback or report problems you noticed.
 </P
><P
>  If you intend to help out with the trackers, you also might want to <A
HREF="https://sourceforge.net/user/registration"
TARGET="_top"
>get an account on SourceForge.net</A
>
   so we don't confuse you with the other name-less users.
 </P
><P
>   We also have a <A
HREF="../developer-manual/index.html"
TARGET="_top"
>Developer's Manual</A
>.
   While it is partly out of date, it's still worth reading.</P
><P
>   Our <A
HREF="http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/TODO?view=markup"
TARGET="_top"
>TODO list</A
>
   may be of interest to you as well.
   Please let us know if you want to work on one of the items listed.</P
></DIV
><DIV
CLASS="SECT3"
><H4
CLASS="SECT3"
><A
NAME="DONATE"
>1.17.2. Would you like to donate?</A
></H4
><P
> Donations are welcome. Our
 <A
HREF="http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/TODO"
TARGET="_top"
>TODO list</A
>
 is rather long and being able to pay one (or more) developers to work on Privoxy
 would make a huge difference, even if it was only for a couple of weeks. Donations may
 also be used for Privoxy-related travel expenses (for example to attend conferences),
 for hardware used for Privoxy development and for hosting expenses etc.</P
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is an associated
 project of <A
HREF="http://www.spi-inc.org/"
TARGET="_top"
>Software
 in the Public Interest (SPI)</A
>, which allows us to receive
 tax-deductible donations in the United States. If you want to donate through
 SPI, please use <A
HREF="http://www.spi-inc.org/donations"
TARGET="_top"
>SPI's donation page</A
>
 to see what the options are.</P
><P
> You can also donate to Privoxy using a bank account or a "Paypal" address:</P
><P
CLASS="LITERALLAYOUT"
>&nbsp;Name&nbsp;on&nbsp;account:&nbsp;<A
HREF="https://www.zwiebelfreunde.de/"
TARGET="_top"
>Zwiebelfreunde e.V.</A
><br>
&nbsp;IBAN:&nbsp;DE95430609671126825604<br>
&nbsp;BIC:&nbsp;GENODEM1GLS<br>
&nbsp;Bank:&nbsp;GLS&nbsp;Bank</P
><P
CLASS="LITERALLAYOUT"
>&nbsp;"Paypal"&nbsp;address:&nbsp;privoxy@zwiebelfreunde.de</P
><P
> Donations made through Zwiebelfreunde e.V. are tax-deductible in Germany
 and other countries that recognize German charitable clubs. Feel free to
 use the Subject field to provide a name to be credited and a list of TODO
 list items you are interested in the most. For example: Max Mustermann: #16, #1, #14.</P
><P
> If you have any questions regarding donations please mail to either the
 public user mailing list or, if it's a private matter, to
 <A
HREF="mailto:fk@fabiankeil.de"
TARGET="_top"
>Fabian Keil</A
> (Privoxy's SPI liason)
 directly.</P
></DIV
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="installation.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Privoxy Frequently Asked Questions</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
>&nbsp;</TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Installation</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>