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
|
<?php
/* $Id$ */
/*
services_unbound_advanced.php
part of the pfSense project (https://www.pfsense.org)
Copyright (C) 2015 Warren Baker (warren@percol8.co.za)
Copyright (C) 2013-2015 Electric Sheep Fencing, LP
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
/*
pfSense_MODULE: dnsresolver
*/
##|+PRIV
##|*IDENT=page-services-unbound
##|*NAME=Services: DNS Resolver Advanced page
##|*DESCR=Allow access to the 'Services: DNS Resolver Advanced' page.
##|*MATCH=services_unbound.php*
##|-PRIV
require_once("guiconfig.inc");
require_once("unbound.inc");
if(!is_array($config['unbound'])) {
$config['unbound'] = array();
}
if (isset($config['unbound']['hideidentity'])) {
$pconfig['hideidentity'] = true;
}
if (isset($config['unbound']['hideversion'])){
$pconfig['hideversion'] = true;
}
if (isset($config['unbound']['prefetch'])) {
$pconfig['prefetch'] = true;
}
if (isset($config['unbound']['prefetchkey'])) {
$pconfig['prefetchkey'] = true;
}
if (isset($config['unbound']['dnssecstripped'])) {
$pconfig['dnssecstripped'] = true;
}
$pconfig['msgcachesize'] = $config['unbound']['msgcachesize'];
$pconfig['outgoing_num_tcp'] = isset($config['unbound']['outgoing_num_tcp']) ? $config['unbound']['outgoing_num_tcp'] : '10';
$pconfig['incoming_num_tcp'] = isset($config['unbound']['incoming_num_tcp']) ? $config['unbound']['incoming_num_tcp'] : '10';
$pconfig['edns_buffer_size'] = isset($config['unbound']['edns_buffer_size']) ? $config['unbound']['edns_buffer_size'] : '4096';
$pconfig['num_queries_per_thread'] = $config['unbound']['num_queries_per_thread'];
$pconfig['jostle_timeout'] = isset($config['unbound']['jostle_timeout']) ? $config['unbound']['jostle_timeout'] : '200';
$pconfig['cache_max_ttl'] = isset($config['unbound']['cache_max_ttl']) ? $config['unbound']['cache_max_ttl'] : '86400';
$pconfig['cache_min_ttl'] = isset($config['unbound']['cache_min_ttl']) ? $config['unbound']['cache_min_ttl'] : '0';
$pconfig['infra_host_ttl'] = isset($config['unbound']['infra_host_ttl']) ? $config['unbound']['infra_host_ttl'] : '900';
$pconfig['infra_cache_numhosts'] = isset($config['unbound']['infra_cache_numhosts']) ? $config['unbound']['infra_cache_numhosts'] : '10000';
$pconfig['unwanted_reply_threshold'] = isset($config['unbound']['unwanted_reply_threshold']) ? $config['unbound']['unwanted_reply_threshold'] : 'disabled';
$pconfig['log_verbosity'] = isset($config['unbound']['log_verbosity']) ? $config['unbound']['log_verbosity'] : "1";
if (isset($config['unbound']['disable_auto_added_access_control'])) {
$pconfig['disable_auto_added_access_control'] = true;
}
if (isset($config['unbound']['use_caps'])) {
$pconfig['use_caps'] = true;
}
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
if ($_POST['apply']) {
$retval = services_unbound_configure();
$savemsg = get_std_save_message($retval);
if ($retval == 0) {
clear_subsystem_dirty('unbound');
}
} else {
if (isset($_POST['msgcachesize']) && !in_array($_POST['msgcachesize'], array('4', '10', '20', '50', '100', '250', '512'), true)) {
$input_errors[] = "A valid value for Message Cache Size must be specified.";
}
if (isset($_POST['outgoing_num_tcp']) && !in_array($_POST['outgoing_num_tcp'], array('0', '10', '20', '30', '40', '50'), true)) {
$input_errors[] = "A valid value must be specified for Outgoing TCP Buffers.";
}
if (isset($_POST['outgoing_num_tcp']) && !in_array($_POST['incoming_num_tcp'], array('0', '10', '20', '30', '40', '50'), true)) {
$input_errors[] = "A valid value must be specified for Incoming TCP Buffers.";
}
if (isset($_POST['edns_buffer_size']) && !in_array($_POST['edns_buffer_size'], array('512', '1480', '4096'), true)) {
$input_errors[] = "A valid value must be specified for EDNS Buffer Size.";
}
if (isset($_POST['num_queries_per_thread']) && !in_array($_POST['num_queries_per_thread'], array('512', '1024', '2048'), true)) {
$input_errors[] = "A valid value must be specified for Number of queries per thread.";
}
if (isset($_POST['jostle_timeout']) && !in_array($_POST['jostle_timeout'], array('100', '200', '500', '1000'), true)) {
$input_errors[] = "A valid value must be specified for Jostle Timeout.";
}
if (isset($_POST['cache_max_ttl']) && (!is_numericint($_POST['cache_max_ttl']) || ($_POST['cache_max_ttl'] < 0))) {
$input_errors[] = "'Maximum TTL for RRsets and messages' must be a positive integer.";
}
if (isset($_POST['cache_min_ttl']) && (!is_numericint($_POST['cache_min_ttl']) || ($_POST['cache_min_ttl'] < 0))) {
$input_errors[] = "'Minimum TTL for RRsets and messages' must be a positive integer.";
}
if (isset($_POST['infra_host_ttl']) && !in_array($_POST['infra_host_ttl'], array('60', '120', '300', '600', '900'), true)) {
$input_errors[] = "A valid value must be specified for TTL for Host cache entries.";
}
if (isset($_POST['infra_cache_numhosts']) && !in_array($_POST['infra_cache_numhosts'], array('1000', '5000', '10000', '20000', '50000'), true)) {
$input_errors[] = "A valid value must be specified for Number of Hosts to cache.";
}
if (isset($_POST['unwanted_reply_threshold']) && !in_array($_POST['unwanted_reply_threshold'], array('disabled', '5000000', '10000000', '20000000', '40000000', '50000000'), true)) {
$input_errors[] = "A valid value must be specified for Unwanted Reply Threshold.";
}
if (isset($_POST['log_verbosity']) && !in_array($_POST['log_verbosity'], array('0', '1', '2', '3', '4', '5'), true)) {
$input_errors[] = "A valid value must be specified for Log level verbosity.";
}
if (isset($_POST['dnssecstripped']) && !isset($config['unbound']['dnssec'])) {
$input_errors[] = "Harden DNSSEC Data option can only be enabled if DNSSEC support is enabled.";
}
if (!$input_errors) {
if (isset($_POST['hideidentity'])) {
$config['unbound']['hideidentity'] = true;
} else {
unset($config['unbound']['hideidentity']);
}
if (isset($_POST['hideversion'])) {
$config['unbound']['hideversion'] = true;
} else {
unset($config['unbound']['hideversion']);
}
if (isset($_POST['prefetch'])) {
$config['unbound']['prefetch'] = true;
} else {
unset($config['unbound']['prefetch']);
}
if (isset($_POST['prefetchkey'])) {
$config['unbound']['prefetchkey'] = true;
} else {
unset($config['unbound']['prefetchkey']);
}
if (isset($_POST['dnssecstripped'])) {
$config['unbound']['dnssecstripped'] = true;
} else {
unset($config['unbound']['dnssecstripped']);
}
$config['unbound']['msgcachesize'] = $_POST['msgcachesize'];
$config['unbound']['outgoing_num_tcp'] = $_POST['outgoing_num_tcp'];
$config['unbound']['incoming_num_tcp'] = $_POST['incoming_num_tcp'];
$config['unbound']['edns_buffer_size'] = $_POST['edns_buffer_size'];
$config['unbound']['num_queries_per_thread'] = $_POST['num_queries_per_thread'];
$config['unbound']['jostle_timeout'] = $_POST['jostle_timeout'];
$config['unbound']['cache_max_ttl'] = $_POST['cache_max_ttl'];
$config['unbound']['cache_min_ttl'] = $_POST['cache_min_ttl'];
$config['unbound']['infra_host_ttl'] = $_POST['infra_host_ttl'];
$config['unbound']['infra_cache_numhosts'] = $_POST['infra_cache_numhosts'];
$config['unbound']['unwanted_reply_threshold'] = $_POST['unwanted_reply_threshold'];
$config['unbound']['log_verbosity'] = $_POST['log_verbosity'];
if (isset($_POST['disable_auto_added_access_control'])) {
$config['unbound']['disable_auto_added_access_control'] = true;
} else {
unset($config['unbound']['disable_auto_added_access_control']);
}
if (isset($_POST['use_caps'])) {
$config['unbound']['use_caps'] = true;
} else {
unset($config['unbound']['use_caps']);
}
write_config("DNS Resolver configured.");
mark_subsystem_dirty('unbound');
}
}
}
$closehead = false;
$pgtitle = array(gettext("Services"),gettext("DNS Resolver"),gettext("Advanced"));
$shortcut_section = "resolver";
include_once("head.inc");
?>
</head>
<body>
<?php include("fbegin.inc"); ?>
<form action="services_unbound_advanced.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
<?php if (is_subsystem_dirty('unbound')): ?><br/>
<?php print_info_box_np(gettext("The configuration of the DNS Resolver, has been changed") . ".<br />" . gettext("You must apply the changes in order for them to take effect."));?><br />
<?php endif; ?>
<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="services unbound advanced">
<tbody>
<tr>
<td class="tabnavtbl">
<?php
$tab_array = array();
$tab_array[] = array(gettext("General settings"), false, "services_unbound.php");
$tab_array[] = array(gettext("Advanced settings"), true, "services_unbound_advanced.php");
$tab_array[] = array(gettext("Access Lists"), false, "/services_unbound_acls.php");
display_top_tabs($tab_array, true);
?>
</td>
</tr>
<tr>
<td id="mainarea">
<div class="tabcont">
<table width="100%" border="0" cellpadding="6" cellspacing="0" summary="main area">
<tbody>
<tr>
<td colspan="2" valign="top" class="listtopic"><?=gettext("Advanced Resolver Options");?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Hide Identity");?></td>
<td width="78%" class="vtable">
<input name="hideidentity" type="checkbox" id="hideidentity" value="yes" <?php if (isset($pconfig['hideidentity'])) echo "checked=\"checked\"";?> /><br />
<?=gettext("If enabled, id.server and hostname.bind queries are refused.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Hide Version");?></td>
<td width="78%" class="vtable">
<input name="hideversion" type="checkbox" id="hideversion" value="yes" <?php if (isset($pconfig['hideversion'])) echo "checked=\"checked\"";?> /><br />
<?=gettext("If enabled, version.server and version.bind queries are refused.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Prefetch Support");?></td>
<td width="78%" class="vtable">
<input name="prefetch" type="checkbox" id="prefetch" value="yes" <?php if (isset($pconfig['prefetch'])) echo "checked=\"checked\"";?> /><br />
<?=gettext("Message cache elements are prefetched before they expire to help keep the cache up to date. When enabled, this option can cause an increase of around 10% more DNS traffic and load on the server, but frequently requested items will not expire from the cache.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Prefetch DNS Key Support");?></td>
<td width="78%" class="vtable">
<input name="prefetchkey" type="checkbox" id="prefetchkey" value="yes" <?php if (isset($pconfig['prefetchkey'])) echo "checked=\"checked\"";?> /><br />
<?=sprintf(gettext("DNSKEYs are fetched earlier in the validation process when a %sDelegation signer%s is encountered. This helps lower the latency of requests but does utilize a little more CPU."), "<a href='http://en.wikipedia.org/wiki/List_of_DNS_record_types'>", "</a>");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Harden DNSSEC data");?></td>
<td width="78%" class="vtable">
<input name="dnssecstripped" type="checkbox" id="dnssecstripped" value="yes" <?php if (isset($pconfig['dnssecstripped'])) echo "checked=\"checked\"";?> /><br />
<?=gettext("DNSSEC data is required for trust-anchored zones. If such data is absent, the zone becomes bogus. If this is disabled and no DNSSEC data is received, then the zone is made insecure.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Message Cache Size");?></td>
<td width="78%" class="vtable">
<select id="msgcachesize" name="msgcachesize">
<?php
foreach (array("4", "10", "20", "50", "100", "250", "512") as $size) :
?>
<option value="<?php echo $size; ?>" <?php if ($pconfig['msgcachesize'] == "{$size}") echo "selected=\"selected\""; ?>>
<?php echo $size; ?>MB
</option>
<?php
endforeach;
?>
</select><br />
<?=gettext("Size of the message cache. The message cache stores DNS rcodes and validation statuses. The RRSet cache will automatically be set to twice this amount. The RRSet cache contains the actual RR data. The default is 4 megabytes.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Outgoing TCP Buffers");?></td>
<td width="78%" class="vtable">
<select id="outgoing_num_tcp" name="outgoing_num_tcp">
<?php
for ($num_tcp = 0; $num_tcp <= 50; $num_tcp += 10):
?>
<option value="<?php echo $num_tcp; ?>" <?php if ($pconfig['outgoing_num_tcp'] == "{$num_tcp}") echo "selected=\"selected\""; ?>>
<?php echo $num_tcp; ?>
</option>
<?php
endfor;
?>
</select><br />
<?=gettext("The number of outgoing TCP buffers to allocate per thread. The default value is 10. If 0 is selected then no TCP queries, to authoritative servers, are done.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Incoming TCP Buffers");?></td>
<td width="78%" class="vtable">
<select id="incoming_num_tcp" name="incoming_num_tcp">
<?php
for ($num_tcp = 0; $num_tcp <= 50; $num_tcp += 10):
?>
<option value="<?php echo $num_tcp; ?>" <?php if ($pconfig['incoming_num_tcp'] == "{$num_tcp}") echo "selected=\"selected\""; ?>>
<?php echo $num_tcp; ?>
</option>
<?php
endfor;
?>
</select><br />
<?=gettext("The number of incoming TCP buffers to allocate per thread. The default value is 10. If 0 is selected then no TCP queries, from clients, are accepted.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("EDNS Buffer Size");?></td>
<td width="78%" class="vtable">
<select id="edns_buffer_size" name="edns_buffer_size">
<?php
foreach (array("512", "1480", "4096") as $size) :
?>
<option value="<?php echo $size; ?>" <?php if ($pconfig['edns_buffer_size'] == "{$size}") echo "selected=\"selected\""; ?>>
<?php echo $size; ?>
</option>
<?php
endforeach;
?>
</select><br />
<?=gettext("Number of bytes size to advertise as the EDNS reassembly buffer size. This is the value that is used in UDP datagrams sent to peers. RFC recommendation is 4096 (which is the default). If you have fragmentation reassemble problems, usually seen as timeouts, then a value of 1480 should help. The 512 value bypasses most MTU path problems, but it can generate an excessive amount of TCP fallback.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Number of queries per thread");?></td>
<td width="78%" class="vtable">
<select id="num_queries_per_thread" name="num_queries_per_thread">
<?php
foreach (array("512", "1024", "2048") as $queries) :
?>
<option value="<?php echo $queries; ?>" <?php if ($pconfig['num_queries_per_thread'] == "{$queries}") echo "selected=\"selected\""; ?>>
<?php echo $queries; ?>
</option>
<?php
endforeach;
?>
</select><br />
<?=gettext("The number of queries that every thread will service simultaneously. If more queries arrive that need to be serviced, and no queries can be jostled, then these queries are dropped.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Jostle Timeout");?></td>
<td width="78%" class="vtable">
<select id="jostle_timeout" name="jostle_timeout">
<?php
foreach (array("100", "200", "500", "1000") as $timeout) :
?>
<option value="<?php echo $timeout; ?>" <?php if ($pconfig['jostle_timeout'] == "{$timeout}") echo "selected=\"selected\""; ?>>
<?php echo $timeout; ?>
</option>
<?php
endforeach;
?>
</select><br />
<?=gettext("This timeout is used for when the server is very busy. This protects against denial of service by slow queries or high query rates. The default value is 200 milliseconds.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Maximum TTL for RRsets and messages");?></td>
<td width="78%" class="vtable">
<input type="text" id="cache_max_ttl" name="cache_max_ttl" size="5" value="<?php if(isset($pconfig['cache_max_ttl'])) echo $pconfig['cache_max_ttl']; ?>" /><br />
<?=gettext("Configure a maximum Time to live for RRsets and messages in the cache. The default is 86400 seconds (1 day). When the internal TTL expires the cache item is expired. This can be configured to force the resolver to query for data more often and not trust (very large) TTL values.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Minimum TTL for RRsets and messages");?></td>
<td width="78%" class="vtable">
<input type="text" id="cache_min_ttl" name="cache_min_ttl" size="5" value="<?php if(isset($pconfig['cache_min_ttl'])) echo $pconfig['cache_min_ttl']; ?>" /><br />
<?=gettext("Configure a minimum Time to live for RRsets and messages in the cache. The default is 0 seconds. If the minimum value kicks in, the data is cached for longer than the domain owner intended, and thus less queries are made to look up the data. The 0 value ensures the data in the cache is as the domain owner intended. High values can lead to trouble as the data in the cache might not match up with the actual data anymore.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("TTL for Host cache entries");?></td>
<td width="78%" class="vtable">
<select id="infra_host_ttl" name="infra_host_ttl">
<option value="60" <?php if ($pconfig['infra_host_ttl'] == "60") echo "selected=\"selected\""; ?>>1 minute</option>
<option value="120" <?php if ($pconfig['infra_host_ttl'] == "120") echo "selected=\"selected\""; ?>>2 minutes</option>
<option value="300" <?php if ($pconfig['infra_host_ttl'] == "300") echo "selected=\"selected\""; ?>>5 minutes</option>
<option value="600" <?php if ($pconfig['infra_host_ttl'] == "600") echo "selected=\"selected\""; ?>>10 minutes</option>
<option value="900" <?php if ($pconfig['infra_host_ttl'] == "900") echo "selected=\"selected\""; ?>>15 minutes</option>
</select><br />
<?=gettext("Time to live for entries in the host cache. The host cache contains roundtrip timing, lameness and EDNS support information. The default is 15 minutes.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Number of Hosts to cache");?></td>
<td width="78%" class="vtable">
<select id="infra_cache_numhosts" name="infra_cache_numhosts">
<option value="1000" <?php if ($pconfig['infra_cache_numhosts'] == "1000") echo "selected=\"selected\""; ?>>1000</option>
<option value="5000" <?php if ($pconfig['infra_cache_numhosts'] == "5000") echo "selected=\"selected\""; ?>>5000</option>
<option value="10000" <?php if ($pconfig['infra_cache_numhosts'] == "10000") echo "selected=\"selected\""; ?>>10 000</option>
<option value="20000" <?php if ($pconfig['infra_cache_numhosts'] == "20000") echo "selected=\"selected\""; ?>>20 000</option>
<option value="50000" <?php if ($pconfig['infra_cache_numhosts'] == "50000") echo "selected=\"selected\""; ?>>50 000</option>
</select><br />
<?=gettext("Number of hosts for which information is cached. The default is 10,000.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Unwanted Reply Threshold");?></td>
<td width="78%" class="vtable">
<select id="unwanted_reply_threshold" name="unwanted_reply_threshold">
<option value="disabled" <?php if ($pconfig['unwanted_reply_threshold'] == "disabled") echo "selected=\"selected\""; ?>>disabled</option>
<option value="5000000" <?php if ($pconfig['unwanted_reply_threshold'] == "5000000") echo "selected=\"selected\""; ?>>5 million</option>
<option value="10000000" <?php if ($pconfig['unwanted_reply_threshold'] == "10000000") echo "selected=\"selected\""; ?>>10 million</option>
<option value="20000000" <?php if ($pconfig['unwanted_reply_threshold'] == "20000000") echo "selected=\"selected\""; ?>>20 million</option>
<option value="40000000" <?php if ($pconfig['unwanted_reply_threshold'] == "40000000") echo "selected=\"selected\""; ?>>40 million</option>
<option value="50000000" <?php if ($pconfig['unwanted_reply_threshold'] == "50000000") echo "selected=\"selected\""; ?>>50 million</option>
</select><br />
<?=gettext("If enabled, a total number of unwanted replies is kept track of in every thread. When it reaches the threshold, a defensive action is taken and a warning is printed to the log file. This defensive action is to clear the RRSet and message caches, hopefully flushing away any poison. The default is disabled, but if enabled a value of 10 million is suggested.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Log level verbosity");?></td>
<td width="78%" class="vtable">
<select id="log_verbosity" name="log_verbosity">
<?php
for ($level = 0; $level <= 5; $level++):
?>
<option value="<?php echo $level; ?>" <?php if ($pconfig['log_verbosity'] == "{$level}") echo "selected=\"selected\""; ?>>
Level <?php echo $level; ?>
</option>
<?php
endfor;
?>
</select><br />
<?=gettext("Select the log verbosity.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Disable auto-added access control");?></td>
<td width="78%" class="vtable">
<input name="disable_auto_added_access_control" type="checkbox" id="disable_auto_added_access_control" value="yes" <?php if (isset($pconfig['disable_auto_added_access_control'])) echo "checked=\"checked\"";?> />
<?=gettext("Check this box to disable the automatically-added access control entries. By default, IPv4 and IPv6 networks residing on internal interfaces of this system are permitted. Allowed networks must be manually configured on the Access Lists tab if the auto-added entries are disabled.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Experimental Bit 0x20 Support");?></td>
<td width="78%" class="vtable">
<input name="use_caps" type="checkbox" id="use_caps" value="yes" <?php if (isset($pconfig['use_caps'])) echo "checked=\"checked\"";?> /> <br />
<?=sprintf(gettext("Use 0x-20 encoded random bits in the DNS query to foil spoofing attempts. See the implementation %sdraft dns-0x20%s for more information."), "<a href='https://tools.ietf.org/html/draft-vixie-dnsext-dns0x20-00'>", "</a>");?>
</td>
</tr>
<tr>
<td width="22%"></td>
<td width="78%">
<input type="submit" name="Save" class="formbtn" id="save" value="Save" />
</td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</form>
<?php include("fend.inc"); ?>
</body>
</html>
|
