Web Hosting Talk : Web Hosting Main Forums : Domain Names : Nameserver IP problem

[kjedwards]

Hi

I am trying to register a .com.ru domain name and need to supply nameserver IP address.

I am doing that BUT getting an error saying the IP for my nameserver cannot be found.

Does anyone have any idea why the IP cannot be found. I have been using this nameserver IP for at least a year and never had a problem.

Any advice please

Thanks

Kevin

[soundguy]

Did you try pinging the address to make sure it's valid? Maybe you picked up a typo somewhere along the line.

[kjedwards]

Hi

I have 3 nameservers and when pinging I get timeout errors with all of them, but domains these nameservers point two show up via a browser ok.

Thanks

Kevin

[Goldwing]

Russian domains check the nameservers before updating the zone file if they cannot find the nameservers then the update will not work.

nameservers must also be on separate subnets or it will also be rejected.

Are you running your own servers? if not is your ISP blocking pings and that is where the problem mat lie.

[kjedwards]

Hi Goldwing

I am hosted by Netacore

I found on my hosting support forum that pinging is blocked, do you know any way of overcoming this?

Submission to Netacore Support hasn't been answered yet

Thanks

Kevin

[Goldwing]

First, get yourself a host that cares enough to reply to you

Did you do the domain direct or through an agent if so ask them if they can enlighten you.

I am not totally sure if the pinging is fully related to your problem but is a reasonable guess.

You could also use an external DNS service - if you do make sure their nameservers are on different subnets.
You can also run into problems like this with .it registrations as well.

Sorry I cant be much more help than that.

[kjedwards]

Hi Goldwing

I previously tried setting up nameservers with two external DNS services but also had great problems with that - the IP's were recognised ok but the Russian checking found additional nameserver records allocated for my hosting account (ie the very nameservers they now say they cannot get the IP's for!) because I didn't submit those nameservers they wouldn't rigister the domain - a catch 22 really.

I though about deleting all references for my hosts nameservers but I am not sure what effect that would have - I don't really know enough about nameservers to do that.

I have posted a second support ticket to Netacore and also a post to their technical support forum, so far no response. Actually in the past Netacore have been great at responding and are usually very helpful - they did allocate free a third nameserver on a different subnet for me

I think there is either a problem with nameserver set up at Netacore or the trouble is due to the pinging being blocked - my guess it is the blocked pining that is causing the trouble because as I mentioned all domains using these nameservers show up ok in the browser.

Now I am totally stuck, I really need a .ru or .com.ru domain name, because we do have business in Russia and want a proper domain name that will be registered in Russian search engines.

If you have suggestions on how to get over this problem, I would be truly grateful

Yours

Kevin

[Goldwing]

Kevin,

If your host is blocking this then there is probably not a lot you can do as they probably wont adjust their services for one client.

I had to do a similar job for a client of mine and had to set up external DNS services for him. When this was done there was a short period of total confusion where the Russian registry was insisting there was 4 nameservers instead of 2 However after about the 3rd try it picked up and worked fine.

Now the good bit, the domain became due for renewal ( delegation they call it) and when the name was renewed the nameservers reverted back to the original settings - so watch out for that one.

[kjedwards]

Hi Goldwing

That was the same errors I got when using external DNS services. In my case I tried resubmitting quite a few times and always got the the same error - more nameservers than the 2 or 3 I was registering with them, I also got errors for duplicate nameservers even though they were not duplicated.

To my mind they should accept 2 valid nameservers even if there are more than 2 but then that's the Russians for you.

I feel I am truly stuck, maybe I will try emailing RIPN and see if they can manually set up domains rather than relying on their auto submission system, but somehow I doubt they will do that.

I can't help wondering though, why a host should disable pinging, especially if this will cause domain registration problems - you also mentioned similar trouble when registering .it domains, there are probably others.

If I recall pinging wasn't always disabled with Netacore.

Thanks again

Yours

Kevin

[mlovick]

Hi Kevin,

1.
I may be wrong, but some registries require that nameserver IP address reverse back to a valid hostname.

I am not sure what nameserver you are using but if it is ns1.netacore.com this has an IP address of 66.11.163.3 however, this IP does not reverse BACK to ns1.netacore.com, it reverses to a domain 3.163.11.66.prioritycolo.com. However 3.163.11.66.prioritycolo.com does not have a valid network address so when I did a dig on that it came up with host not found.

3.163.11.66.in-addr.arpa IN PTR 3.163.11.66.prioritycolo.com 37972s (10h 32m 52s)

2. I have PM'd you on another issue. Please read

[mlovick]

BTW.

Sometimes a host will block ICMP (Ping) in their firewalls due to certain DOS attacks which can effectivly bring a server to its knees.

Bit inconvenient, but there are mostly two sides to every coin