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Major domain name service down and how to avoid it

Anyone know what's up with EuroDNS NameServers

         

nilson

8:07 pm on Apr 28, 2005 (gmt 0)



EuroDNS servers ns1 and ns2 have been unreachable since about 5pm GMT today. Tens of thousands of websites must be unreachable because of it, among which my own, and eurodns's web and email servers.

If anyone can tell me how this is possible, what has happened, that would be very nice. In the meantime it points me to two weaknesses in my domain hosting I hadn't thought of before.

If my domains were registered at registrar A and the dns hosted at dns service B, then I would have been able to change the dns server in the whois record at registrar a to dns service C. Right? Yet in this case with the registrar and dns service being the same company, both are unavailable at the same time. Now what if a registrar annex dns service falls over for longer periods of time?

Secondly, if a registrar only let's you assign two nameservers in the whois form is there any other way to assign a ns3 and ns4?

- Nilson

davezan

3:11 pm on Apr 29, 2005 (gmt 0)

10+ Year Member



EuroDNS servers ns1 and ns2 have been unreachable since about 5pm GMT today. Tens of thousands of websites must be unreachable because of it, among which my own, and eurodns's web and email servers.

If anyone can tell me how this is possible, what has happened, that would be very nice. In the meantime it points me to two weaknesses in my domain hosting I hadn't thought of before.

Worse case scenario, a Distributed Denial Of Service (DDOS) attack. It occurs when multiple
"zombie" computers continually query a provider's servers every so often that the servers
"crash" due to information overload.

Incidentally I just found out that's what happened to netsol last week.

If my domains were registered at registrar A and the dns hosted at dns service B, then I would have been able to change the dns server in the whois record at registrar a to dns service C. Right? Yet in this case with the registrar and dns service being the same company, both are unavailable at the same time. Now what if a registrar annex dns service falls over for longer periods of time?

The registrar should allow its user to change DNS anytime no matter what.

If the servers fall over for longer periods of time, they'll definitely fix it up ASAP, that's for sure.
But what else do you want them to do?

If you're thinking they should refund for downtime, that's what their disclaimers and limitations
of liability are there for. No registrar can guarantee minimal to no downtime, especially if a DDOS
occurs.

Secondly, if a registrar only let's you assign two nameservers in the whois form is there any other way to assign a ns3 and ns4?

The registrar should allow you to add up to about 6 nameservers. Just check their online account
manager.