pfSense

<?php if ($input_errors) print_input_errors($input_errors); ?>

<?php if ($savemsg) print_info_box($savemsg); ?>

<?php if (is_subsystem_dirty('hosts')): ?><p>

<?php endif; ?>

<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="services unbound advanced">

	<tbody>

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								<td width="22%" valign="top" class="vncell"><?=gettext("Hide Identity");?></td>

								<td width="78%" class="vtable">

									<?=gettext("If enabled, id.server and hostname.bind queries are refused.");?></p>

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								<td width="22%" valign="top" class="vncell"><?=gettext("Hide Version");?></td>

								<td width="78%" class="vtable">

									<?=gettext("If enabled, version.server and version.bind queries are refused.");?></p>

								</td>

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								<td width="22%" valign="top" class="vncell"><?=gettext("Prefetch Support");?></td>

								<td width="78%" class="vtable">

									<?=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.");?></p>

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								<td width="22%" valign="top" class="vncell"><?=gettext("Prefetch DNS Key Support");?></td>

								<td width="78%" class="vtable">

									<?=sprintf(gettext("DNSKEY's 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>");?></p>

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								<td width="22%" valign="top" class="vncell"><?=gettext("Harden Glue");?></td>

								<td width="78%" class="vtable">

									<?=gettext("Only trust glue if it is within the servers authority.");?></p>

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								<td width="22%" valign="top" class="vncell"><?=gettext("Harden DNSSEC data");?></td>

								<td width="78%" class="vtable">

									<?=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.");?></p>

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							</tr>

											<option value="100">100MB</option>

											<option value="250">250MB</option>

											<option value="512">512MB</option>

										<?=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.");?>

									</p>

								</td>

											<option value="30">30</option>

											<option value="40">40</option>

											<option value="50">50</option>

										<?=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.");?>

									</p>

								</td>

											<option value="30">30</option>

											<option value="40">40</option>

											<option value="50">50</option>

										<?=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.");?>

									</p>

								</td>

											<option value="512">512</option>

											<option value="1480">1480</option>

											<option value="4096">4096</option>

										<?=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.");?>

									</p>

								</td>

											<option value="512">512</option>

											<option value="1024">1024</option>

											<option value="2048">2048</option>

										<?=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.");?>

									</p>

								</td>

											<option value="200">200</option>

											<option value="500">500</option>

											<option value="1000">1000</option>

										<?=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.");?>

									</p>

								</td>

								<td width="22%" valign="top" class="vncell"><?=gettext("Maximum TTL for RRsets and messages");?></td>

								<td width="78%" class="vtable">

									<p>

										<?=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.");?>

									</p>

								</td>

								<td width="22%" valign="top" class="vncell"><?=gettext("Minimum TTL for RRsets and messages");?></td>

								<td width="78%" class="vtable">

									<p>

										<?=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.");?>

									</p>

								</td>

											<option value="300">5 minutes</option>

											<option value="600">10 minutes</option>

											<option value="900">15 minutes</option>

										<?=gettext("Time to live for entries in the host cache. The host cache contains roundtrip timing and EDNS support information. The default is 15 minutes.");?>

									</p>

								</td>

											<option value="300">5 minutes</option>

											<option value="600">10 minutes</option>

											<option value="900">15 minutes</option>

										<?=gettext("Time to live for when a delegation is considered to be lame. The default is 15 minutes.");?>

									</p>

								</td>

											<option value="10000">10 000</option>

											<option value="20000">20 000</option>

											<option value="50000">50 000</option>

										<?=gettext("Number of hosts for which information is cached. The default is 10,000.");?>

									</p>

								</td>

											<option value="20000000">20 million</option>

											<option value="40000000">40 million</option>

											<option value="50000000">50 million</option>

										<?=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.");?>

									</p>

								</td>

											<option value="3">Level 3</option>

											<option value="4">Level 4</option>

											<option value="5">Level 5</option>

										<?=gettext("Select the log verbosity.");?>

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								</td>