====== How do i configure my other nameserver? ======
To keep the secondary nameserver in sync with the primary you can follow these steps.

===== NS1 =====
Edit **/etc/bind/named.conf** and add this to the top:
<code>
options {
        directory "/var/cache/bind";
        forwarders {
                [DNS.FROM.ISP];};
        auth-nxdomain no;
        dnssec-enable yes;
};
key "TRANSFER" {
        algorithm hmac-md5;
        secret "[HASHKEY]";
};
server [YOUR.NS2.IP] {
        keys {
                TRANSFER;
        };
};
</code>
Parts of this used to be in **named.conf.options**, but we will not use that file. Remove the include line to. It should include a nameserver from your isp as forwarder and we use dnssec-enable to do encrypted zone-transfers. Also remove ALL comments!
You need a key for secure zonetransfers on both nameservers. You can create a key with: (its in the **<bla>.private** file, only needed once and only on your NS1)
<cli>
# dnssec-keygen -a hmac-md5 -b 512 -n host [YOUR.NS1.FQDN]
</cli>
Restart bind.
<cli>
# /etc/init.d/bind9 restart
</cli>

===== NS2 =====
Edit **/etc/bind/named.conf** and add this to the top:
<code>
options {
        directory "/var/cache/bind";
        forwarders {
                [DNS.FROM.ISP];};
        auth-nxdomain no;
        dnssec-enable yes;
};
key "TRANSFER" {
        algorithm hmac-md5;
        secret "[HASHKEY]";
};
server [YOUR.NS1.IP] {
        keys {
                TRANSFER;
        };
};
</code>
Look at the NS1 remarks.

Create a script (cron of course) to configure new zone files. The actual records will be imported with a zone-transfer.
<cli>
# nano dnsupdate.sh
</cli>
<code>
#!/bin/sh
NAMED="/etc/bind/named.conf.local"
TMPNAMED="/tmp/zns-441245.temp"
TMPZONEFILE="/tmp/zones.txt"
TMP="/tmp/zns-732.temp"
ZONELOCATION="/var/cache/bind"

echo -n "Checking for new named.conf... "
wget -q https://[YOUR.NS1.IP]:10801/named/named.conf -O $TMPNAMED
if [ -e $TMPNAMED ]
then
        echo "done."
else
        echo "no new data!"
        exit
fi
echo -n "Generating zone names... "
cat $TMPNAMED |grep zone |cut -d" " -f"2" |cut -d"\"" -f2 > $TMPZONEFILE
sed '1,5d' $TMPZONEFILE > $TMP
mv $TMP $TMPZONEFILE
echo "done. ("$TMPZONEFILE")"
echo "Generating zone info... "
cat $TMPZONEFILE |while read ZONE; do
if [ -e $ZONELOCATION/$ZONE.db ]
then
        echo "Zone $ZONE already available."
else
        echo -n "New zone available ($ZONE)... "
        echo "zone \"$ZONE\" {
        type slave;
        file \"$ZONELOCATION/$ZONE.db\";
        masters { [YOUR.NS1.IP]; };
        allow-notify { [YOUR.NS1.IP]; };
        };" >> $NAMED
        echo "added."
        echo "Restarting Bind"
        /etc/init.d/bind9 restart
fi
done
rm $TMPZONEFILE
rm $TMPNAMED
</code>
Use cron to let it check for updates every hour.

===== ispCP server =====
Edit your site config file and add this:
<code>
Alias /named /etc/bind
<directory /etc/bind>
Order Deny,Allow
Deny from all
Allow from [YOUR.NS2.IP]
</directory>
</code>
Restart apache and try the script on NS2. It should download the **named.conf** (containing the domainnames) and add those to its own configuration. Right after bind reloads it should transfer the zone itself.

===== NS3 =====
The Control Panel only accepts an IP for your secondary nameserver. If you really need NS3 you can manually edit the correct files in **/etc/vhcs/bind/parts/**.