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# 1  
Old 11-27-2010
Secondary DNS not working

hi guys

I am doing some testing for DNS
I got a master DNS(192.168.2.10) and I setup a slave DNS(192.168.2.11) but when I shutdown the Master DNS my linux client cannot resolve using the slave
any idea way?
This is the named.conf
Code:
options
{
    query-source    port 53;   
    directory "/var/named";
    dump-file         "data/cache_dump.db";
    statistics-file     "data/named_stats.txt";
    memstatistics-file     "data/named_mem_stats.txt";
    listen-on { 192.168.2.10; 127.0.0.1; };
};

logging
{
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };   
};

view "internal"
{
    match-clients        { localnets; };
    match-destinations    { localnets; };
    recursion yes;

    zone "training.com" {
        type master;
        notify yes;
        allow-query { any; };
        file "data/training.com.db";
    };

    zone "2.168.192.in-addr.arpa" {
        type master;
        notify yes;
        allow-query { any; };
        file "data/2.168.192.zone.db";
        };
   
    zone "." {
    type hint;
    file "data/named.ca";
    };
};

Data files

Code:
training.com.db
$TTL    86400
@       IN      SOA     masterdns.training.com root.training.com. ( 
                        2009111914 ; Serial number needs to be increase when zone changes
                        28800      ; Refresh
                        14400      ; Retry
                        3600000    ; Expire
                        86400 )    ; Minimum
                IN       NS  masterdns.training.com.
                IN       A   192.168.2.10 ; 
masterdns       IN       A   192.168.2.10 ; 
secondarydns    IN       A   192.168.2.11 ;
www             IN       A   192.168.2.10 ; 

2.168.192.zone.db
$TTL    86400
@       IN      SOA     masterdns.training.com root.training.com.  (
                                      2009111914 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum
          IN    NS    masterdns.training.com.
10        IN    PTR   training.com. ;
10        IN    PTR   masterdns ;
11        IN    PTR   secondarydns ;

Slave DNS
Zone Configuration
Code:
zone "training.com" {
        type slave;
        notify yes;
        allow-query { any; };
        file "data/sec.training.com.db";
        masters { 192.168.2.10; };
    };

    zone "2.168.192.in-addr.arpa" {
        type slave;
        notify yes;
        allow-query { any; };
        file "data/sec.2.168.192.zone.db";
        masters { 192.168.2.10; };

any idea?

thanks a lot
# 2  
Old 11-27-2010
please post contents of /etc/resolv.conf. ensure that both servers are listed in there.
This User Gave Thanks to frank_rizzo For This Post:
# 3  
Old 11-28-2010
yes both are listed

so that means my conf above looks OK?
# 4  
Old 11-28-2010
Did you check the slave to insure it was caching the master data correctly?
This User Gave Thanks to Neo For This Post:
# 5  
Old 11-28-2010
please confirm that your using the same named.conf configuration except for the zone configuration.

does this query work while both nameservers are online?

Code:
dig +trace @192.168.2.11 unix.com a

This User Gave Thanks to frank_rizzo For This Post:
# 6  
Old 11-28-2010
just a moment guys I am doing some more troubleshooting before answering
thanks meanWhile

---------- Post updated at 07:40 PM ---------- Previous update was at 05:21 PM ----------

thanks a lot guy

you gave me some ideas and I recreate the configuration

Slave is working fine Smilie

now one last question

I am using for this

my masterdns resolve google.com
ping google.com is OK

now how can I go the same for my DNS clients....
how can my DNS query and transfer Internet sites to my local DNS clientes?

thanks a lot
# 7  
Old 11-28-2010
Quote:
Originally Posted by kopper
you gave me some ideas and I recreate the configuration

Slave is working fine Smilie
what did you do to fix the issue? please post so others can learn from it.


Quote:
Originally Posted by kopper
now one last question

I am using for this

my masterdns resolve google.com
ping google.com is OK

now how can I go the same for my DNS clients....
how can my DNS query and transfer Internet sites to my local DNS clientes?

thanks a lot

not sure what your asking.
This User Gave Thanks to frank_rizzo For This Post:
 

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