<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>Have a look at relayd from OpenBSD, the last time I checked it had the capability you are looking for. </div><div><br>Another option might be pfSense, as I recall they ported relayd and include the functionality in their firewall.</div><div><br></div><div>Frank Pikelner</div><div><br></div><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"WXR" <474745079@qq.com><br><b>To: </b>"bind邮件组" <bind-users@lists.isc.org><br><b>Sent: </b>Thursday, January 29, 2015 9:07:20 PM<br><b>Subject: </b>Is there any reverse proxy software for dns or udp?<br><div><br></div>Is there any reverse proxy software for dns<span id="_editor_bookmark_start_40" style="display: none; line-height: 0px;" data-mce-style="display: none; line-height: 0px;"></span> , which can do load balance、cache for dns service, just like squid for http service?<br><div><br></div>_______________________________________________<br>Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list<br><div><br></div>bind-users mailing list<br>bind-users@lists.isc.org<br>https://lists.isc.org/mailman/listinfo/bind-users</div><div><br></div></div></body></html>