Please help with some DNS errors I am having

As for the one error; it says how to fix it. Contact your ISP to add the reverse DNS record for your IP address.

The 'TLD Parent Check' I don't think you can fix.

'Different subnets' - this refers to the preferred setup of two or more geographical separated nameservers. This is recommended for in the case that one nameserver may be unavailable due to a failure; the other nameserver still makes sure your domain names are alive in the DNS. If you only use one physical server, and it gets down for a like half a day, your domains will be gone for a whole day. Also e-mails being sent towards your server will error back to the sender. If you have the second nameserver, the e-mail would try to resend for a long time untill your server is back up. So anyway its really a good idea to have a second nameserver on for example a little VPS.

The other warning 'Different autonomous systems' is caused by the previouse one.
 
Arieh,
Thanks for your answer!

I have secondary server I am using for backups and it can be also used as a nameserver.

But unfortunately, I don't know how to configure it.

Can you help?
 
Theres many ways to do this. DirectAdmin supports this by itself with the multi-server feature; however it requires DirectAdmin as well on the other server. Since that would be pricy for just backup/nameserver, there are other methods.

You can take a look at this topic: http://www.directadmin.com/forum/showthread.php?t=24888

The topic is initially about another bind installation; but the thread also discusses other methods. The one I'm using is referd to in this post: http://www.directadmin.com/forum/showthread.php?t=24888&page=2#23

It is powerdns with poweradmin. The tutorial linked in there may not be very clear; it requries some time looking into it all. Basically its setting up those powerdns/poweradmin, and configure the bind on DA machine to forward changes.

One last thing; if records are removed in DA, they will still be on the powerdns, to remove them use this script: http://www.webhostingtalk.nl/techni.../168661-dns-servers-wijzigen.html#post1201036

This is as far as I can help.
 
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I have 2 DirectAdmin servers, it's not the problem.
I want to use multi-server setup.

But still I can't understand what I have to do, on which server should I enable the option? Server A (Master) or Server B (Slave)?

I want ns1.satla-zone.co.il to return my primary server ip
and ns2.satla-zone.co.il my secondary server ip
 
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