Dns & Http Failover

I am trying to configure two servers, each one to work as a back up in case the other goes down.
As far I have only modify bind configuration. The next step is to setup data synchronization.

It looks like its working but i will ask you to take a look at my files and correct me if I did something wrong or not necessary.

Fail Over works only for www.oratv.gr. Round Robin is also used for this site

SERVER 1 (MASTER DNS)
named.conf

Code:

acl recurseallow { 88.218.110.178;  88.218.110.179;  88.218.110.180; 88.218.110.181; 88.218.110.182;  localhost;};

options {
        pid-file "/var/named/chroot/var/run/named/named.pid";
        directory "/var/named/chroot/var/named";
        auth-nxdomain no;
        allow-recursion { recurseallow; };
        // query-source address * port 53;
        allow-transfer {
        88.218.110.182;
        };
};

//
// a caching only nameserver config
//
zone "." {
        type hint;
        file "named.ca";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "named.local";
};

zone "110.218.88.in-addr.arpa" {
        type master;
        file "pri.110.218.88.in-addr.arpa";
};


zone "***host.gr" {
        type master;
        file "pri.***host.gr";
};

zone "oratv.gr" {
        type master;
        file "pri.oratv.gr";
        allow-transfer {  /// I dont know if this is necessary 
        88.218.110.178;
        88.218.110.182;
        common-allow-transfer;
        };
};
//// MAKE MANUAL ENTRIES BELOW THIS LINE! ////
key rndc-key {
	algorithm hmac-md5;
	secret "mfkqvLYgvUapMFyNMw==";
	};
acl common-allow-transfer {
        88.218.110.182;
        88.218.110.178;
        };

pri.oratv.gr

Code:

$TTL        60
@       IN      SOA     ns1.oratv.gr. admin.oratv.gr. (
                        2007082107       ; serial, todays date + todays serial #
                        60              ; refresh, seconds
                        60              ; retry, seconds
                        60              ; expire, seconds
                        60 )            ; minimum, seconds
;
                NS      ns1.oratv.gr.              ; Inet Address of name server 1
                NS      ns2.oratv.gr.              ; Inet Address of name server 2
;

host1  MX      10 ***host.gr.
host3  MX      20 ***host.gr.

oratv.gr.      A        88.218.110.182
www       A       88.218.110.182
www       A       88.218.110.181

ns1       CNAME  www.oratv.gr.
ns2       CNAME  www.oratv.gr.

oratv.gr.       TXT  "v=spf1 a mx ptr ~all"

;;;; MAKE MANUAL ENTRIES BELOW THIS LINE! ;;;;

SERVER 2 (SLAVE DNS)
named.conf

Code:

options {
        pid-file "/var/named/chroot/var/run/named/named.pid";
        directory "/var/named/chroot/var/named";
        auth-nxdomain no;
        // query-source address * port 53;
        forwarders {88.218.110.178;};
};

//
// a caching only nameserver config
//
zone "." {
        type hint;
        file "named.ca";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "named.local";
};

zone "***host.gr" {
        type slave;
        file "sec.***host.gr";
        masters { 88.218.110.178; };
};

zone "oratv.gr" {
        type slave;
        file "sec.oratv.gr";
        masters { 88.218.110.178; };
};

//// MAKE MANUAL ENTRIES BELOW THIS LINE! ////
key rndc-key {
	algorithm hmac-md5;
	secret "mfkqvLYgvUapMFyNMw==";
	};
controls {
	inet 127.0.0.1 port 953 allow { 127.0.0.1; } keys { rndc-key; };
	};

*** edit change NS www.oratv.gr. NS to ns1-ns2.oratv.gr. in pri.oratv.gr & add CNAMES***

 

So the zone transfer isn't working from ns1 to ns2?
Any errors in your logs?