From bec6d7ff062b9760b76d1be796fae3db5f6accf1 Mon Sep 17 00:00:00 2001
From: Scott Ullrich <sullrich@pfsense.org>
Date: Tue, 25 Sep 2007 16:29:05 +0000
Subject: Add update_dns_cache.sh file which monitors dns addresses and looks
 for changes.  A filter reload will be triggered if host ips differ

---
 usr/sbin/update_dns_cache.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 usr/sbin/update_dns_cache.sh

(limited to 'usr/sbin')

diff --git a/usr/sbin/update_dns_cache.sh b/usr/sbin/update_dns_cache.sh
new file mode 100755
index 0000000..49ee231
--- /dev/null
+++ b/usr/sbin/update_dns_cache.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+while [ /bin/true ]; do
+        cd /var/db/dnscache 
+        needsfilterreload=0
+        for FILE in *; do
+                OLDIP=`cat $FILE`
+                NEWIP=`host $FILE | awk '{ print $4 }'`
+                if [ "$OLDIP" != "$NEWIP" ]; then
+                        needsfilterreload=1
+                fi
+        done
+        if [ "$needsfilterreload" -gt 0 ]; then
+                /etc/rc.filter_configure_sync
+        fi
+        sleep 480
+done
-- 
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