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-rw-r--r--config/bind/bind.inc17
-rw-r--r--config/bind/bind.xml52
2 files changed, 55 insertions, 14 deletions
diff --git a/config/bind/bind.inc b/config/bind/bind.inc
index d1ff106f..4e01214a 100644
--- a/config/bind/bind.inc
+++ b/config/bind/bind.inc
@@ -72,7 +72,20 @@ $bind_conf .= <<<EOD
max-cache-size $ram_limit;\n
EOD;
-
+ // check response rate limit option
+ //https://kb.isc.org/article/AA-01000/0/A-Quick-Introduction-to-Response-Rate-Limiting.html
+ //http://ss.vix.su/~vjs/rl-arm.html
+ if ($bind['rate_enabled']=="on"){
+ $rate_limit=($bind['rate_limit']?$bind['rate_limit']:"15");
+ $log_only=($bind['log_only']=="no"?"no":"yes");
+ $bind_conf .= <<<EOD
+ rate-limit {
+ responses-per-second {$rate_limit};
+ log-only {$log_only};
+ };
+
+EOD;
+ }
//check ips to listen on
if (preg_match("/All/",$bind['listenon'])){
$bind_listenonv6="Any;";
@@ -97,7 +110,7 @@ EOD;
}
$bind_listenonv6=($bind_listenonv6==""?"none;":$bind_listenonv6);
$bind_listenon=($bind_listenon==""?"none;":$bind_listenon);
- print "<PRE>$bind_listenonv6 $bind_listenon";
+ //print "<PRE>$bind_listenonv6 $bind_listenon";
if (key_exists("ipv6allow",$config['system'])){
$bind_conf .="\t\tlisten-on-v6 { $bind_listenonv6 };\n";
}
diff --git a/config/bind/bind.xml b/config/bind/bind.xml
index a3b9e572..97dc7012 100644
--- a/config/bind/bind.xml
+++ b/config/bind/bind.xml
@@ -125,6 +125,11 @@
</additional_files_needed>
<fields>
<field>
+ <type>listtopic</type>
+ <name>Daemon Settings</name>
+ <fieldname>temp01</fieldname>
+ </field>
+ <field>
<fielddescr>Enable Bind</fielddescr>
<fieldname>enable_bind</fieldname>
<description><![CDATA[Enable DNS Bind on Server<br>
@@ -132,6 +137,15 @@
<type>checkbox</type>
<required/>
</field>
+ <field>
+ <fielddescr>Listen-on</fielddescr>
+ <fieldname>listenon</fieldname>
+ <description><![CDATA[Enable Named to listen on.]]></description>
+ <type>interfaces_selection</type>
+ <showlistenall/>
+ <showvirtualips/>
+ <multiple/>
+ </field>
<field>
<fielddescr>Enable logging</fielddescr>
<fieldname>bind_logging</fieldname>
@@ -151,27 +165,43 @@
<type>checkbox</type>
</field>
<field>
- <fielddescr>Limitar Memory RAM</fielddescr>
+ <fielddescr>Limit Memory use</fielddescr>
<fieldname>bind_ram_limit</fieldname>
- <description>Limits the use of RAM for the DNS when much use does not exhaust the resources of the machine, recommend 256M</description>
+ <description>Limits RAM use for DNS server, recommend 256M</description>
<type>input</type>
<size>10</size>
<default_value>256M</default_value>
</field>
<field>
<type>listtopic</type>
- <name>Listen on Interfaces</name>
+ <name>Response limit</name>
<fieldname>temp01</fieldname>
</field>
<field>
- <fielddescr>Listen-on</fielddescr>
- <fieldname>listenon</fieldname>
- <description><![CDATA[Enable Named to listen on.]]></description>
- <type>interfaces_selection</type>
- <showlistenall/>
- <showvirtualips/>
- <multiple/>
+ <fielddescr>Rate limit</fielddescr>
+ <fieldname>rate_enabled</fieldname>
+ <description>Limit/rate response queries to prevent DOS attack.</description>
+ <type>checkbox</type>
+ <enablefields>rate_limit,log_only</enablefields>
+ </field>
+ <field>
+ <fielddescr>Limit Action</fielddescr>
+ <fieldname>log_only</fieldname>
+ <description>Select what to do when a query reaches a limit.</description>
+ <type>select</type>
+ <options>
+ <option><name>Deny query</name><value>no</value></option>
+ <option><name>Log only</name><value>yes</value></option>
+ </options>
+ </field>
+ <field>
+ <fielddescr>limit</fielddescr>
+ <fieldname>rate_limit</fieldname>
+ <description>Set rate limit. Default to 15.</description>
+ <type>input</type>
+ <size>10</size>
</field>
+
<field>
<type>listtopic</type>
<name>Forwarder Config</name>
@@ -211,8 +241,6 @@
<custom_php_after_head_command>
</custom_php_after_head_command>
<custom_php_command_before_form>
- bind_views_before_form_dest(&amp;$pkg,"bindacls","name","listenonv6");
- bind_views_before_form_dest(&amp;$pkg,"bindacls","name","listenon");
</custom_php_command_before_form>
<custom_add_php_command>
</custom_add_php_command>