When are DNS Server Updated?
 

I'm just wondering if ntl: sets a specific time each day when they update their DNS servers to take account of people changeing their domain's DNS.
This would be very usefull, especially to me as I would like to know when I will be able to see my website via my domain :)

Re: When are DNS Server Updated?
 

No idea, but you don't have to use NTL's DNS if you know the IP of an alternative. Just drop that into your IE settings instead (and I don't know how to do that either, I use a Mac).

Re: When are DNS Server Updated?
 

actually the DNS servers are not entered into IE setting. You need to go to control panel - network connection - right click your connection..properties... - double click TCP/IP and in the bottom two boxes, put 2 other DNS IP's in :)

Re: When are DNS Server Updated?
 

DNS doesn't work like this. Nobody updates their dns servers at a specific time. Basically all dns records have an expiry time and when a record has expired, it is re-newed from the domains primary dns when next requested. :)

Re: When are DNS Server Updated?
 

the usual time for a site to appear is 24 to 48 hours, although with NTL you just dont know :erm: :D :p:

Re: When are DNS Server Updated?
 

Ah cool. From what other people have told me elsewhere I assumed that was how it worked (I guess they were over simplifing/just plain wrong) is there anyway to find out when the dns records expire?

Re: When are DNS Server Updated?
 

Yes, nslookup will tell you if you run it in "debug" mode.

For example - if I try it for CF I get this ;

You can see (highlighted) that CF's dns entry will expire on just under 6 minutes time in the dns server I use. :)

Re: When are DNS Server Updated?
 

well ntl's dns server seem to be pretty quick when it comes to updating domain's but I disagree with that all dns server will auto update when domains ttl expires, when I was using freeserve years ago domains used to take WEEK's to propogate.

Re: When are DNS Server Updated?
 

You could always try using a different PROXY. This has its own DNS servers, and will probably be faster

Re: When are DNS Server Updated?
 

Well you are free to disagree if you wish - but that's still how dns works. :)

Re: When are DNS Server Updated?
 

That's great thank you :)

Re: When are DNS Server Updated?
 

Pem thats how it is meant to work, but I was just pointing out some dns servers around the world are faulty, wether they are set to ignore ttl value's or are simply malfunctioning I dont know, but there are faulty ones out there. I work with lots of domains and run my own nameservers for hosting I do and when I update subdomains some isp's take forever to notice the changed even tho my update time should only be 15mins I am seeing some people taking over a week to see the change. Of course this is off topic and I apologise, in this case ntl dns servers get the changes fine.

Re: When are DNS Server Updated?
 

I have never seen a dns server do this, they must be faulty in some way and the users of them should really complain.

Re: When are DNS Server Updated?
 

They're meant to obey TTL.

Personally I add entries to my
/etc/hosts on my linux box
and
c:/winnt/system32/drivers/etc/hosts

So it resolves instantly.

Another tip.
Update your 2nd nameserver first and wait 2-3 days and then update your first nameserver, no one will notice its down but it might cause confusion with non static content like forums.

Re: When are DNS Server Updated?
 

dns servers can be set to keep a domain cached for a set period and override the actually ttl of the domain

Re: When are DNS Server Updated?
 

Why would anyone want to do such a thing, bizarre. :dozey:

Re: When are DNS Server Updated?
 

I have been running DNS servers using BIND of various versions for the last 10 years, and it never ceases to amaze me the number of messages I get every day in our logs about badly configured DNS servers out there.

My biggest gripe at the moment with DNS is the spate of Scandinavian broadband users who for some reason have picked our servers for their primary DNS! :(