DNS transfer: can it be blocked?

[Skyblue]

Hi,

When a DNS is changed to point to a new host, how easy is it for the old host to block or disrupt the transfer of the DNS, e.g. by changing the TTL of the DNS record so that it expires a long time in the future? Would it be counterproductive for the old host to do so in terms of requests for the DNS for a website they no longer host? Are their any in-built safeguards in the DNS system to prevent this kind of problem?

Please reply a.s.a.p

Thanks.

[jandwh]

When dns is changed, it can't be blocked, if I understood your question correctly.

[host4life]

The old host could set a long TTL time (weeks or months), which allow caching DNS servers to cache the old results for a long time. I can't see any benefit for them (apart from spite if you depart on unfriendly terms)

[uberdragon]

There are ways for the losing registrar to dispute a move to a new registrar (keep in mind registrar is not neccesarily your hoster. It is who you first registered the domain with ie: my-webhoster.com). This normally only happens when you have over due accounts. They will put a lock on the domain until the account is paid up.

If you are only changing web hosts you will not run into this problem. The only modification needed to change web hosting companies is pointing your DNS nameservers records attached to your domain to your new provider. In most cases you are able to do this automatically from within your registrar account. If you are unable to handle this thru your registrar's online interface, you will need to contact them to make the changes. And let me suggest you find a registrar that allows you to make your own changes whenever you want. Why rely on a mom/pop domain registrar front end website when there are many automated registrars out there at such reasonable rates?

I hope this has helped.

Best Regards,

Shane
Sales & Marketing