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Thread: rdns setup taking ages
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11-06-2010, 01:20 PM #1Web Hosting Master
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rdns setup taking ages
Hi,
Can anyone advise me, I have requested rdns to be set up 6 days ago but the rdns isnt done yet, im getting confused as they say I have to keep waiting due to other isp
Ive checked from my server using host comand
root@uk7 [~]# host x.x.x.x
Host x.x.x.x.in-addr.arpa. not found: 3(NXDOMAIN)
root@uk7 [~]# nslookup x.x.x.x
Server: x.x.x.x
Address: x.x.x.x#53
** server can't find x.x.x.x.in-addr.arpa.: NXDOMAIN
Regards
KeithVPS & Dedi with -
UKServers (8/10) Clouvider (7/10) 12 month, Rapidswitch (1/10) 15Years+, Hivelocity (10/10) 7 Years, Clustered net (10+/10) 17Years+
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11-06-2010, 01:49 PM #2WebHosting Master
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If your host is not the datacenter but reselling them in some way (maybe they're colocating, etc.) then they may need to fall back on a 3rd party (the datacenter) when getting the RDNS set, which would explain the delay.
Have you tried pressing them for a reply in the last 2 days?
Perhaps you can quote their reply here.
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11-06-2010, 01:58 PM #3Web Hosting Master
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I dont want to affend the host as I not sure on this rdns thing
they say its all set, but takes time to change due to other isps, normally within 48hrs all should be done
Im giving it one more day then bailingVPS & Dedi with -
UKServers (8/10) Clouvider (7/10) 12 month, Rapidswitch (1/10) 15Years+, Hivelocity (10/10) 7 Years, Clustered net (10+/10) 17Years+
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11-06-2010, 02:28 PM #4--. --. .-- ....
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11-06-2010, 02:31 PM #5Aspiring Evangelist
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6 days does seem extreme normally 48hrs would be the maximum
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11-06-2010, 03:47 PM #6
After your host say they have updated it, confirm it using Check Reverse DNS Lookup at http://www.iptools.com
If it shows up correctly you just need to wait up to 24 hours for the change to take affect.
Hope this helps.HostXNow - Shared Web Hosting | Semi Dedicated Hosting | Enterprise Reseller Hosting | VPS Hosting
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11-06-2010, 04:05 PM #7relax, im a professional
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It might be your nameserver. If you do an nslookup on something and it doesn't exist that result is going to be cached. It's also usually going to cache locally.
Try using an external nameserver such as 'nslookup ipaddress 4.2.2.2'
4.2.2.2 is level3's resolver and they don't hold much of a cache.
It won't work if your on a network that level3 doesn't support however i've yet to see them block anyone.
If the 4.2.2.2 works for you it's not the rdns at fault.
And in spite of what's said about 24-48 hours that's simply not correct. Once a nameserver that has authority over something refreshes that's it, it becomes an instant change unless negative caching exists for the item(s).Last edited by woods01; 11-06-2010 at 04:09 PM.
James Paul Woods
Operations Manager
HostKitty Internet Services
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11-06-2010, 04:14 PM #8Web Hosting Master
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Run a dig directly against the nameservers that host the in-addr.arpa zones --
dig -x IP_HERE @nameserver
See if maybe it is perhaps propagation lag or if it truly is not set.█ Daniel | Server Complete, LLC
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11-06-2010, 04:41 PM #9Web Hosting Master
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Hi,
Here is the results of nslookup
root@uk7 [~]# nslookup xx.xx.xx.xx 4.2.2.2
Server: 4.2.2.2
Address: 4.2.2.2#53
Non-authoritative answer:
xx.xx.xx.xx.in-addr.arpa name = xxx.domain.co.uk.
Authoritative answers can be found from:
cheers
KeithVPS & Dedi with -
UKServers (8/10) Clouvider (7/10) 12 month, Rapidswitch (1/10) 15Years+, Hivelocity (10/10) 7 Years, Clustered net (10+/10) 17Years+
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11-06-2010, 04:43 PM #10Web Hosting Master
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11-06-2010, 04:44 PM #11Web Hosting Master
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Edit your /etc/resolv.conf to contain the following:
nameserver 4.2.2.1
nameserver 4.2.2.2
options rotate█ Daniel | Server Complete, LLC
█ INSTANTLY DEPLOYED Bare Metal Servers
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11-06-2010, 04:48 PM #12Temporarily Suspended
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The quickest RDNS Updates i have seen have to instant.
Thats only with one provider. the rest around 4 hours. some could take days.Last edited by Zack-Hancock; 11-06-2010 at 04:57 PM.
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11-06-2010, 04:52 PM #13Web Hosting Master
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normally all my other servers dns are within 4 hours atleast,
I took out another server wednesday and thats all fine with in 1 day, Just puzzles meVPS & Dedi with -
UKServers (8/10) Clouvider (7/10) 12 month, Rapidswitch (1/10) 15Years+, Hivelocity (10/10) 7 Years, Clustered net (10+/10) 17Years+
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11-06-2010, 10:17 PM #14relax, im a professional
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It depends on the dns configuration that is used. Bind usually needs a refreshment done of the zone file which isn't a big deal however when your dealing with large nameservers you waste alot of resources constantly refreshing them with each ip change. So sometimes they are done every so often.
djbdns/powerdns and the like usually run off crons that automatically update zones regardless if anything has been changed or not so your always going to have the latest changes published on a schedule.
If you ever have a doubt just ask your uplink how often the dns updates, if can vary by provider.James Paul Woods
Operations Manager
HostKitty Internet Services
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11-06-2010, 10:58 PM #15Web Hosting Evangelist
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11-07-2010, 12:21 AM #16--. --. .-- ....
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11-07-2010, 01:32 AM #17Aspiring Evangelist
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I would put an average on 48 hours max unless you've put it through on a weekend or public holiday. Most ISP's don't have an active response over weekends unless for emergencies.
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11-07-2010, 02:26 AM #18Junior Guru
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11-07-2010, 08:03 AM #19HostXNow - Shared Web Hosting | Semi Dedicated Hosting | Enterprise Reseller Hosting | VPS Hosting
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