DNS Changes take how long
Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
If'n they'll change the serial number on their DNS server, the updates will begin automagically. Otherwise, 24-72 hours is the norm... You should ask them though... D -Original Message- From: Tony Hlabse [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 7:59 AM To: Exchange Discussions Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
A dig on tripathimaging.com shows a default TTL of 24 hours, so it would take no more than that. I'd ask them to crank the TTL down on your stuff to an hour NOW. Then by the time they change the records, it will take no more than one hour for all caching hosts to update. The one hour is what I crank mine down to, when I foresee a change in DNS hosting coming down the pipe. Sometimes even 15 minutes, believe it or not. You may be happy with 6 or 12 or 24 hours; but the point is that a one hour TTL won't matter on a domain like tripathimaging.com; there aren't that many records. Verio shouldn't mind, either. -tom -Original Message- From: Don Ely [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 09:55 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: RE: DNS Changes take how long If'n they'll change the serial number on their DNS server, the updates will begin automagically. Otherwise, 24-72 hours is the norm... You should ask them though... D -Original Message- From: Tony Hlabse [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 7:59 AM To: Exchange Discussions Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
I don't have DNS probs silly... ;o) It's the other guy... D -Original Message- From: Tom Meunier [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 8:08 AM To: Exchange Discussions Subject: RE: DNS Changes take how long A dig on tripathimaging.com shows a default TTL of 24 hours, so it would take no more than that. I'd ask them to crank the TTL down on your stuff to an hour NOW. Then by the time they change the records, it will take no more than one hour for all caching hosts to update. The one hour is what I crank mine down to, when I foresee a change in DNS hosting coming down the pipe. Sometimes even 15 minutes, believe it or not. You may be happy with 6 or 12 or 24 hours; but the point is that a one hour TTL won't matter on a domain like tripathimaging.com; there aren't that many records. Verio shouldn't mind, either. -tom -Original Message- From: Don Ely [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 09:55 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: RE: DNS Changes take how long If'n they'll change the serial number on their DNS server, the updates will begin automagically. Otherwise, 24-72 hours is the norm... You should ask them though... D -Original Message- From: Tony Hlabse [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 7:59 AM To: Exchange Discussions Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
D'oh. :) Okay. Hey Tony, what's your domain name, so's I can go DIG it and tell you what your default TTL is? (most admins default it to 86,400 seconds anyway, or 24 hours) Matter of fact, how about you go buy the cricket book take over DNS questions around here? Don's got a flamewar to attend to, and I'm a dimwit. -tom -Original Message- From: Don Ely [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 10:05 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: RE: DNS Changes take how long I don't have DNS probs silly... ;o) It's the other guy... D -Original Message- From: Tom Meunier [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 8:08 AM To: Exchange Discussions Subject: RE: DNS Changes take how long A dig on tripathimaging.com shows a default TTL of 24 hours, so it would take no more than that. I'd ask them to crank the TTL down on your stuff to an hour NOW. Then by the time they change the records, it will take no more than one hour for all caching hosts to update. The one hour is what I crank mine down to, when I foresee a change in DNS hosting coming down the pipe. Sometimes even 15 minutes, believe it or not. You may be happy with 6 or 12 or 24 hours; but the point is that a one hour TTL won't matter on a domain like tripathimaging.com; there aren't that many records. Verio shouldn't mind, either. -tom -Original Message- From: Don Ely [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 09:55 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: RE: DNS Changes take how long If'n they'll change the serial number on their DNS server, the updates will begin automagically. Otherwise, 24-72 hours is the norm... You should ask them though... D -Original Message- From: Tony Hlabse [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 7:59 AM To: Exchange Discussions Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
Re: DNS Changes take how long
Supposed to happen every 24 hours at midnight EST. Give it 24 hours after that to propogate. - Original Message - From: Tony Hlabse [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 11, 2002 9:58 AM Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
The key word there is, supposed. Best bet is to have some sort of forwarding set up on the old IP address. Some ISP's update their DNS when the Unix admin wants to take a break from figuring out if he should put the / in front of the capital S or behind a lower case b. -Original Message- From: Daniel Chenault [SMTP:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 11:43 AM To: Exchange Discussions Subject: Re: DNS Changes take how long Supposed to happen every 24 hours at midnight EST. Give it 24 hours after that to propogate. - Original Message - From: Tony Hlabse [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 11, 2002 9:58 AM Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
A light bulb just went on. Since we are running a PIX we are going to change internally and we don't care how long it takes. nmo need to send you the domain name now I guess. Thanks for the reply though. D'oh. :) Okay. Hey Tony, what's your domain name, so's I can go DIG it and tell you what your default TTL is? (most admins default it to 86,400 seconds anyway, or 24 hours) Matter of fact, how about you go buy the cricket book take over DNS questions around here? Don's got a flamewar to attend to, and I'm a dimwit. -tom -Original Message- From: Don Ely [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 10:05 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: RE: DNS Changes take how long I don't have DNS probs silly... ;o) It's the other guy... D -Original Message- From: Tom Meunier [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 8:08 AM To: Exchange Discussions Subject: RE: DNS Changes take how long A dig on tripathimaging.com shows a default TTL of 24 hours, so it would take no more than that. I'd ask them to crank the TTL down on your stuff to an hour NOW. Then by the time they change the records, it will take no more than one hour for all caching hosts to update. The one hour is what I crank mine down to, when I foresee a change in DNS hosting coming down the pipe. Sometimes even 15 minutes, believe it or not. You may be happy with 6 or 12 or 24 hours; but the point is that a one hour TTL won't matter on a domain like tripathimaging.com; there aren't that many records. Verio shouldn't mind, either. -tom -Original Message- From: Don Ely [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 09:55 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: RE: DNS Changes take how long If'n they'll change the serial number on their DNS server, the updates will begin automagically. Otherwise, 24-72 hours is the norm... You should ask them though... D -Original Message- From: Tony Hlabse [mailto:[EMAIL PROTECTED]] Sent: Friday, January 11, 2002 7:59 AM To: Exchange Discussions Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ Chat with friends online, try MSN Messenger: http://messenger.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
I stand by my contention that it will take on average 1/2[TTL]. If the TTL is 60 seconds, it will seem immediate (but given a statistically significant sample will actually average 30 seconds). Surely you're not saying that every caching DNS server in the world clears its cache at midnight EST? -Original Message- From: Daniel Chenault [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 10:43 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: Re: DNS Changes take how long Supposed to happen every 24 hours at midnight EST. Give it 24 hours after that to propogate. - Original Message - From: Tony Hlabse [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 11, 2002 9:58 AM Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: DNS Changes take how long
it does take about 24 hours to get all the way around the world, but you will find zone transfers to regional dns servers can happen almost instantly. for example, if i update my external dns hosted here in london and reload, the new records are correctly served by DNS servers in other parts of the UK before i have time to say 'nslookup'. the trick with DNS is to be prepared, always know in advance when a change needs doing so you can crank the ttl down (typically to 900 seconds) before making the change. better still, NAT your public addresses to a private address space with a firewall and then you can move your internal hosts around much as you like without changing the external DNS. the only time you need to plan ahead is for adding new public addresses. dan. -Original Message- From: Tom Meunier [mailto:[EMAIL PROTECTED]] Sent: 11 January 2002 17:16 To: Exchange Discussions Subject: RE: DNS Changes take how long I stand by my contention that it will take on average 1/2[TTL]. If the TTL is 60 seconds, it will seem immediate (but given a statistically significant sample will actually average 30 seconds). Surely you're not saying that every caching DNS server in the world clears its cache at midnight EST? -Original Message- From: Daniel Chenault [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 10:43 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: Re: DNS Changes take how long Supposed to happen every 24 hours at midnight EST. Give it 24 hours after that to propogate. - Original Message - From: Tony Hlabse [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 11, 2002 9:58 AM Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
Re: DNS Changes take how long
No, I'm saying the root servers change at midnight. After that it's up to all the other DNS servers to respect TTL. - Original Message - From: Tom Meunier [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 11, 2002 11:16 AM Subject: RE: DNS Changes take how long I stand by my contention that it will take on average 1/2[TTL]. If the TTL is 60 seconds, it will seem immediate (but given a statistically significant sample will actually average 30 seconds). Surely you're not saying that every caching DNS server in the world clears its cache at midnight EST? -Original Message- From: Daniel Chenault [mailto:[EMAIL PROTECTED]] Posted At: Friday, January 11, 2002 10:43 AM Posted To: MSExchange Mailing List Conversation: DNS Changes take how long Subject: Re: DNS Changes take how long Supposed to happen every 24 hours at midnight EST. Give it 24 hours after that to propogate. - Original Message - From: Tony Hlabse [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 11, 2002 9:58 AM Subject: DNS Changes take how long Well we are making the switch from a Eudora email server to a Exchange 2000 setup. The new Zone records will be sent to our ISP Verio. We are hoping all updates to other DNS servers will in place by Monday. Anybody think it will take longer than 48+ hours. We make the change request today at noon. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
