Dns Weirdness

[KevCraighead]

I have just switched my host from 0catch.com (Sunday 16 March). A move I am pleased to have done. I went to my domain registrar godaddy.com and updated the DNS entries as instructed in my welcome e-mail. After 27 hours my domain had "moved" and worked fine. Just as well because 0catch changed my account to a free version and it had dozens of ugly pop ups and inserted ads. I was happy! I then set-up my e-mail on the domain and it worked fine. As a test I then sent an e-mail to another e-mail address on the domain but it never arrived. I decided to check things out on cpanel and went to the address www.competitiveedgedesign.com/cpanel and guess what happened? I recieved a "file not found" error because I was sent to the OLD version of the site hosted at 0catch.com!!!??? I checked www.competitiveedgedesign.com and I went to index.html here at TCH. However, when I clicked any link on the page I was sent back to the 0catch version?!? I then refreshed the index.html page in my browser and it then switched to the 0catch version. It was as though I caught my site changing DNS from the new entry back to the old. Weird. I then went and checked godaddy.com and my DNS servers were fine. ping resolved the new ip address here at TCH. Checking the online DNS tools at TCH everything seemed fine too. All the entries were present and correct. However, my site is still appearing as the old 0catch.com version!!!! I assume that in the next 24 hours the DNS propogation "bug" will iron itself out. Fine. But does anyone have any idea why the site appeared to move hosts then revert back to the old host when the DNS entries are all OK???

[Lianna]

CheckDNS shows the TCH servers as being authoritative for your domain. I have seen instances (not that uncommon) for a domain to appear to resolve correctly and then quickly 'go-back' to old. Normally, I think, this is due to the ISP's DNS database. Usually an ISP has two and while one may have updated, the other may not have, yet. Just hang tight. If you still have a problem later today, you may wish to contact your ISP about it.

 

Lianna

[KevCraighead]

Thanks for the reply, I guess it is the waiting game!

 

Another odd thing is that my e-mail still works OK on the domain. To send anyway - not getting much in the way of replies! Would have thought with the domain being wrong that the mail would also go and try and find e-mail accounts at 0catch?! Or is the MX record right? I think I am rambling....!

 

[Head Guru]

DNS has "several" ath sets of records.

 

www has its own

mail has its own

ftp has its own

yourdomain.tld? has its own

subdomains all have there own

 

I have seen it happen MANY times where mail will propagate two days before www or ftp propagates before www.

 

Its all just a waiting game.

[baseline]

the problem really resides on your own computer.

flush the dns cache and you will point to the new host.

any trace of the old dns from cache or history will result in you 'switching back' to the old 0catch.

 

empty your cache and history and run "ipconfig /flushdns" on the winxp/2000 commandline and that should fix u up.

[Head Guru]

baseline -

 

Not true all the time, as the algo for the NT kernel flushes the IP dns cache upon lease expiry of the dhcp license (most likely daily). It is also flushed with every reboot.

 

The problem more likely than not resides with a Cached DNS server with the ISP

[baseline]

I experieneced this very recently as well in pointing my domain to here.

 

if it is indeed my isp, then i find it odd that my isp would update,un-update their dns cache within a matter of seconds of me flushing my local dns cache and requesting a resolve again. this has happened to me a few times even after reboot. i would get the right IP resolved but come back in a few seconds and get the old host IP again. a dns flush would once again solve it. mind you, this only happened near the beginning of my 12-74 hour propagation period. on multiple computers on different ISPs. and even reports from my members.

 

i think you are correct in saying that it is a waiting game. there's not much you can do anyways during the 'fuzzy' period. it probably is just the ISPs messing with us

[Matt]

I have also experienced this phenomenon (if you would call it that) recently. It was weird because with all my past domain changes, once they were working, they stayed. The last two domains I have changed have bounced a few times to the old version. I guess as the net keeps getting bigger with more addresses the more difficult it will be to ensure everyone is pointing exactly the same.