Dns & Http Failover

[kyriakos]

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

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

$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

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***

[falko]

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