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switching webservers

Z

zimu

Diamond Member
i just swithced webservers yesterday and notified my domain name host of the new DNS and IP address. i know its supposed to take 24 hours or something for it to actually take effect, but what i'm confused about is that if i run a whois query, it shows my NEW dns and IP address, yet takes me to the old site?

any idea how the propogation works??
 
Yes... dns server cache information, so your isps has probably not updated their yet. Therefore you might be accessing the old site, but the nameservers could already have switched.
 
Originally posted by: DeviousTrap
Yes... dns server cache information, so your isps has probably not updated their yet. Therefore you might be accessing the old site, but the nameservers could already have switched.
Click to expand...

any idea what the typical time for the change would be from here? its been about 32 hours already!
 
Originally posted by: zimu
Originally posted by: DeviousTrap
Yes... dns server cache information, so your isps has probably not updated their yet. Therefore you might be accessing the old site, but the nameservers could already have switched.
Click to expand...

any idea what the typical time for the change would be from here? its been about 32 hours already!
Click to expand...

Depends on how often your isp refreshes their servers. Could be between 2 hours - 48 hours.
 
Originally posted by: DeviousTrap
Originally posted by: zimu
Originally posted by: DeviousTrap
Yes... dns server cache information, so your isps has probably not updated their yet. Therefore you might be accessing the old site, but the nameservers could already have switched.
Click to expand...

any idea what the typical time for the change would be from here? its been about 32 hours already!
Click to expand...

Depends on how often your isp refreshes their servers. Could be between 2 hours - 48 hours.
Click to expand...

when you mention my ISP you mean the people i'm connected through right now? so its possible that other people on other ISP's may be seeing another site?!
 
Originally posted by: zimu
Originally posted by: DeviousTrap
Originally posted by: zimu
Originally posted by: DeviousTrap
Yes... dns server cache information, so your isps has probably not updated their yet. Therefore you might be accessing the old site, but the nameservers could already have switched.
Click to expand...

any idea what the typical time for the change would be from here? its been about 32 hours already!
Click to expand...

Depends on how often your isp refreshes their servers. Could be between 2 hours - 48 hours.
Click to expand...

when you mention my ISP you mean the people i'm connected through right now? so its possible that other people on other ISP's may be seeing another site?!
Click to expand...


Very possilble. Ask a friend to check.
 
you guys are friends right? 😉

HERE

you can tell if its the new one or old one by the address.
if it redirects you to site/index.html its new
if its just aptechgdn.com/index.html then its old.
 
Originally posted by: zimu
you guys are friends right? 😉

HERE

you can tell if its the new one or old one by the address.
if it redirects you to site/index.html its new
if its just aptechgdn.com/index.html then its old.
Click to expand...

site/index.html for me
 
how can this be?!?!

if i ping aptechgdn.com i get the NEW ip address. if i send/ receive mail to aptechgdn.com, it uses the new servers. Yet, when i load the aptechgdn.com website i still get the old one.

i've flushed my cache etc, its definitely not cached...
 
Originally posted by: zimu
how can this be?!?!

if i ping aptechgdn.com i get the NEW ip address. if i send/ receive mail to aptechgdn.com, it uses the new servers. Yet, when i load the aptechgdn.com website i still get the old one.

i've flushed my cache etc, its definitely not cached...
Click to expand...

ISP cached. this happened to one of my domains. As many times as I refresh my browser, I kept seeing the old website. I got my email and could log into FTP just fine, but i couldnt see the new site on the new server. Give it a couple of hours. Doesnt the ISP empty its cache every so often?
 
Originally posted by: lilcam
Originally posted by: zimu
how can this be?!?!

if i ping aptechgdn.com i get the NEW ip address. if i send/ receive mail to aptechgdn.com, it uses the new servers. Yet, when i load the aptechgdn.com website i still get the old one.

i've flushed my cache etc, its definitely not cached...
Click to expand...

ISP cached. this happened to one of my domains. As many times as I refresh my browser, I kept seeing the old website. I got my email and could log into FTP just fine, but i couldnt see the new site on the new server. Give it a couple of hours. Doesnt the ISP empty its cache every so often?
Click to expand...

dammit, my ISP caches stuff?! it has been a couple of hours!! anybody know anything about this isp caching business?
 
you ISP will change it shortly.

however if you want to be able to see it now, you can modify your HOSTS file

C:\WINDOWS\SYSTEM32\DRIVERS\ETC\HOSTS

add a line that says the new IP that you get through ping, and then the site (with the www. in front, and another line without the www. in front)

examples:

127.0.0.1 www.aptechgdn.com
127.0.0.1 aptechgdn.com

just replace the IP in there with the one from your ping. save and then clear your cache, and try the site again. If it doesn't work it may require a reboot.
 
Originally posted by: zimu
Originally posted by: lilcam
Originally posted by: zimu
how can this be?!?!

if i ping aptechgdn.com i get the NEW ip address. if i send/ receive mail to aptechgdn.com, it uses the new servers. Yet, when i load the aptechgdn.com website i still get the old one.

i've flushed my cache etc, its definitely not cached...
Click to expand...

ISP cached. this happened to one of my domains. As many times as I refresh my browser, I kept seeing the old website. I got my email and could log into FTP just fine, but i couldnt see the new site on the new server. Give it a couple of hours. Doesnt the ISP empty its cache every so often?
Click to expand...

dammit, my ISP caches stuff?! it has been a couple of hours!! anybody know anything about this isp caching business?
Click to expand...

ISP's cache sites to cut down on the traffic between them and the DNS servers.

When a page is requested, everytime they have to go to the DNS and lookup where to look for it next. If they just record this, then they can just look for that local copy, saving time for everyone on their ISP trying to get to that site.

Your ISP has it cached most likely because of you. Since you visit it somewhat frequently I assume it thinks that caching it would speed things up.

People that say it brings up the new site are on an ISP that doesn't have your site cached yet because no one on that ISP has ever been to the site, thus no need to cache the DNS.
 
Originally posted by: GtPrOjEcTX
Originally posted by: zimu
Originally posted by: lilcam
Originally posted by: zimu
how can this be?!?!

if i ping aptechgdn.com i get the NEW ip address. if i send/ receive mail to aptechgdn.com, it uses the new servers. Yet, when i load the aptechgdn.com website i still get the old one.

i've flushed my cache etc, its definitely not cached...
Click to expand...

ISP cached. this happened to one of my domains. As many times as I refresh my browser, I kept seeing the old website. I got my email and could log into FTP just fine, but i couldnt see the new site on the new server. Give it a couple of hours. Doesnt the ISP empty its cache every so often?
Click to expand...

dammit, my ISP caches stuff?! it has been a couple of hours!! anybody know anything about this isp caching business?
Click to expand...

ISP's cache sites to cut down on the traffic between them and the DNS servers.

When a page is requested, everytime they have to go to the DNS and lookup where to look for it next. If they just record this, then they can just look for that local copy, saving time for everyone on their ISP trying to get to that site.

Your ISP has it cached most likely because of you. Since you visit it somewhat frequently I assume it thinks that caching it would speed things up.

People that say it brings up the new site are on an ISP that doesn't have your site cached yet because no one on that ISP has ever been to the site, thus no need to cache the DNS.
Click to expand...


if this whole ISP caching deal is correct as you say, how come when i make modifications to any of the pages it shows up instantly?? doesnt' caching mean that i would see the old page until the ISP recaches?
 
it doesn't cache the pages, it caches the DNS (what computer www.aptechgdn.com goes to to bring back the pages). It would NOT be in the ISP's best interest to cache pages because: 1) that would take an insane amount of hard disk space 2) when the webmaster updated a page, the person viewing the page would see the old copy.
 
Originally posted by: GtPrOjEcTX
it doesn't cache the pages, it caches the DNS (what computer www.aptechgdn.com goes to to bring back the pages). It would NOT be in the ISP's best interest to cache pages because: 1) that would take an insane amount of hard disk space 2) when the webmaster updated a page, the person viewing the page would see the old copy.
Click to expand...

ahh i see. understood now!

I followed the advice above and manually edited my hosts file. however now if i go to www.aptechgdn.com it takes me to handinhandcomputing.com/~aptechgdn!

Can't it just say aptechgdn.com?? what is the problem there? it should just show aptechgdn.com/site, not the name of my web hosting company!
 
to further describe the DNS caching model I'll give an example.

if my isp did NOT cache forums.anandtech.com, then everytime I click a link here, make a post where, hit refresh here, it would have to go out to the DNS and lookup which computer it looks for to load the pages from. That's ridiculous, when you take into account that people rarely change hosts (take rarely as not often) and they could just record where to look, and then everyone on that ISP looking for forums.anandtech.com gets a little speed boost when going here, not to mention the ISP saves $$ from less traffic.
 
Originally posted by: zimu
Originally posted by: GtPrOjEcTX
it doesn't cache the pages, it caches the DNS (what computer www.aptechgdn.com goes to to bring back the pages). It would NOT be in the ISP's best interest to cache pages because: 1) that would take an insane amount of hard disk space 2) when the webmaster updated a page, the person viewing the page would see the old copy.
Click to expand...

ahh i see. understood now!

I followed the advice above and manually edited my hosts file. however now if i go to www.aptechgdn.com it takes me to handinhandcomputing.com/~aptechgdn!

Can't it just say aptechgdn.com?? what is the problem there? it should just show aptechgdn.com/site, not the name of my web hosting company!
Click to expand...

it may still be looking at the old site, try a clear cache and a reboot.
 
Originally posted by: GtPrOjEcTX
Originally posted by: zimu
Originally posted by: GtPrOjEcTX
it doesn't cache the pages, it caches the DNS (what computer www.aptechgdn.com goes to to bring back the pages). It would NOT be in the ISP's best interest to cache pages because: 1) that would take an insane amount of hard disk space 2) when the webmaster updated a page, the person viewing the page would see the old copy.
Click to expand...

ahh i see. understood now!

I followed the advice above and manually edited my hosts file. however now if i go to www.aptechgdn.com it takes me to handinhandcomputing.com/~aptechgdn!

Can't it just say aptechgdn.com?? what is the problem there? it should just show aptechgdn.com/site, not the name of my web hosting company!
Click to expand...

it may still be looking at the old site, try a clear cache and a reboot.
Click to expand...

no no, thats the thing- its my new site. the handinhandcomputing is my new webhosting company, and that's my domain preview address.
also if i go to any subdomains or anything, even try webmail (www.aptechgdn.com/webmail) it says page not found.

i'll try rebooting, i don't think that'll change anything.
 
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