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Re: Root zone change -- d.gtld-servers.net
by Michael Shields 21 Sep '00

21 Sep '00

In article <20000920224220.E2038(a)gblx.net>, Austin Schutz <tex(a)off.org> wrote: > Do you have statistics to back up the 'three most widely-used TLDs' > statement? > > According to www.netsizer.com, org isn't even in the top ten. > I'm not sure upon what they base their data, but I was unable to find > evidence to the contrary. They seem to be measuring number of hosts named under the zone, as measured by a recursive query. I think the best way to tell which TLD servers are most widely used would be to monitor the query traffic to the root nameservers; most operators will agree that the most actively trafficed domains are the most important to maintain reachability to. BIND's selection algorithm will bias this however, so you would need to take a sample across several or all. (Actually, this would be an interesting way to study the effects of BIND's selection algorithm and see if it's doing the right thing.) -- Shields.

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Renaissance Hotel full?
by Simon Lockhart 21 Sep '00

21 Sep '00

Hi, The Renaissance Hotel have told our travel department that they have no further rooms available in the NANOG room block, and the only remaining rooms are $279/night. Can anyone confirm this, before I book with the Marriott, who apparently do have availability for the whole week. Simon -- Simon Lockhart | Tel: +44 (0)1737 839676 Internet Engineering Manager | Fax: +44 (0)1737 839516 BBC Internet Services | Email: Simon.Lockhart(a)bbc.co.uk Kingswood Warren,Tadworth,Surrey,UK | URL: http://support.bbc.co.uk/

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Re: Renaissance Hotel full?
by Steven M. Bellovin 21 Sep '00

21 Sep '00

In message <11756.969547064@sunf25>, Simon Lockhart writes: > >Hi, > >The Renaissance Hotel have told our travel department that they have no >further rooms available in the NANOG room block, and the only remaining >rooms are $279/night. > >Can anyone confirm this, before I book with the Marriott, who apparently >do have availability for the whole week. While I can't confirm that, I do know that hotel rooms in D.C. are quite tight. I travel there a lot, and I've had a lot of trouble finding reasonably-priced rooms downtown. --Steve Bellovin

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RE: Root zone change -- d.gtld-servers.net
by rdobbins＠netmore.net 21 Sep '00

21 Sep '00

Yes, yes, you're all entirely correct about that. Back in the day, they were all the same, but this hasn't been true in quite some time. I'd be happy if they took out full-page adverts in the New York Times, as long as they let us know about these things. Of course, one could say that it's too little, too late . . . ----------------------------------------------------------- Roland Dobbins <rdobbins(a)netmore.net> // 818.535.5024 voice -----Original Message----- From: Sean Donelan [mailto:sean@donelan.com] Sent: Tuesday, September 19, 2000 7:59 PM To: nanog(a)merit.edu Subject: RE: Root zone change -- d.gtld-servers.net On Tue, 19 September 2000, Randy Bush wrote: > > In this particular case, I can see where information about root nameserver > > changes might be of use in figuring out broken name resolution due to > > caching issues, etc. > > indeed! but these date are not about root nameservers. I believe Randy operates/provides the servers for more TLDs in the root zone than any organization in the world, so I can understand why he is being pedantic about the root zone file. NSI is not changing the name servers for "." (root) NSI is changing the name servers for some TLDs. If you changed the name servers for .CA or .US, would those operators send out a notice or just do it. Since NSI has experienced at least one problem making this change in the past, which caused a lot of traffic on NANOG; I think its commendable they are now providing advance notice. If it will become a regular feature, NSI may want to provide a pointer to a different place where NSI will continue to provide the same information in the future instead of posting it on NANOG.

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RE: DNS Updates
by Karyn Ulriksen 20 Sep '00

20 Sep '00

Ben, There is no major list for when DNS servers update. Basically, it works like this.... Part of your DNS records has information on how long to store information on a DNS server once it is gathered. The remote DNS server (ie, Earthlink's) takes the information as a "recommendation". Most DNS servers will go by this recommendation. However, there are quite a few DNS servers out there that will ignore the recommendation. Generally, the servers that disregard the recommended time will update with new information only after a time configured by their administrator. In most cases, this will be about 24-48 hours. However, some ISPs may lengthen these times for whatever reason or possibly due to misconfiguration. If you are not seeing updates as quickly as you'd like, have your ISP set the information in the SOA portion of your DNS record to be short lived. If the current information is set to 30 days, some DNS servers may not see your new information until after 30 days and there may be little you can do about the current state. Ask your current DNS provider to set your TTLs for your domain to 24-48 hours to alleviate this type of problem in the future. If they don't know how to do this, you may want to arrange for a new DNS provider. --------------------------------------------------------------------- Best regards, Karyn Ulriksen Director of Network Operations PublicHost, A SiteStream Company 22 Mauchly, Suite 200 Irvine, California 92618 USA Phone: (949) 743-2000 email: kulriksen(a)publichost.com URL: http://www.publichost.com <http://www.publichost.com/> =========================================== -----Original Message----- From: Benjamin Harper [mailto:harperb@hotmail.com] Sent: Wednesday, September 20, 2000 3:06 PM To: nanog(a)merit.edu Subject: DNS Updates Hi Everyone, I was wondering if anybody knew when most DNS servers update their records with regard to changes in DNS hosts for a domain. I've made changes to my domain, and it looks like only a handful of DNS servers (earthlink being one of them that I could find) have actually made the changes. I've heard that the turnaround time is normally 24-48 hours for the changes to take effect, yet it seems that it takes FOREVER for anything to ever happen when I have NSI update the records for the site. Is there a reference on the net somewhere containing when some of the major DNS servers update their records, or does anybody have any idea why it always takes so long? Many Thanks, Ben

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RE: DNS Updates
by Roeland M.J. Meyer 20 Sep '00

20 Sep '00

They haven't updated to BIND8 with notify? -----Original Message----- From: Benjamin Harper [mailto:harperb@hotmail.com] Sent: Wednesday, September 20, 2000 3:06 PM To: nanog(a)merit.edu Subject: DNS Updates Hi Everyone, I was wondering if anybody knew when most DNS servers update their records with regard to changes in DNS hosts for a domain. I've made changes to my domain, and it looks like only a handful of DNS servers (earthlink being one of them that I could find) have actually made the changes. I've heard that the turnaround time is normally 24-48 hours for the changes to take effect, yet it seems that it takes FOREVER for anything to ever happen when I have NSI update the records for the site. Is there a reference on the net somewhere containing when some of the major DNS servers update their records, or does anybody have any idea why it always takes so long? Many Thanks, Ben

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DNS Updates
by Benjamin Harper 20 Sep '00

20 Sep '00

Hi Everyone, I was wondering if anybody knew when most DNS servers update their records with regard to changes in DNS hosts for a domain. I've made changes to my domain, and it looks like only a handful of DNS servers (earthlink being one of them that I could find) have actually made the changes. I've heard that the turnaround time is normally 24-48 hours for the changes to take effect, yet it seems that it takes FOREVER for anything to ever happen when I have NSI update the records for the site. Is there a reference on the net somewhere containing when some of the major DNS servers update their records, or does anybody have any idea why it always takes so long? Many Thanks, Ben

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Qwest UT fiber cut
by Majdi S. Abbas 20 Sep '00

20 Sep '00

Anyone heard any details? Rumor has it there is a cut between Richfield and Beaver. --msa

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Cat6
by Dave McKay 20 Sep '00

20 Sep '00

I haven't seen any mails on this, so I thought I'd post for the bored and curious. I have posted the Cat6 standard on my website. (sorry for the pdf format.) http://www.sneakerz.org/1000Base-TX.pdf -- Dave McKay dave(a)sneakerz.org Network Engineer - Google Inc.

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RE: Root zone change -- d.gtld-servers.net
by rdobbins＠netmore.net 20 Sep '00

20 Sep '00

Yes, in the common parlance, they're referred to as the 'root' servers. Most technical people, including myself (unless we're being pedantic) refer to them in the same way. ----------------------------------------------------------- Roland Dobbins <rdobbins(a)netmore.net> // 818.535.5024 voice -----Original Message----- From: Nathan Lane [mailto:nathan@terminus.com] Sent: Tuesday, September 19, 2000 5:36 PM Cc: nanog(a)merit.edu Subject: Re: Root zone change -- d.gtld-servers.net Randy Bush wrote: > indeed! but these date are not about root nameservers. > > randy Indeed they ARE "root level" (i.e., the ones that have high visibility) servers to any non technical corporate management. I applaud the effort by the team at Network Solutions to keep us informed of changes and outages, even those not under their direct control. Without DNS, this space doesn't work for 99.9% of the population. -Nathan Lane Wal-Mart Stores, Inc.

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