Hi.

I'm running my own DNS servers, but I also need to do outbound connects from my Weinbar site...

Weinbar gave me only one IP address for DNS. I presume they have more than one DNS server, anyone have it handy? Email me at Stephen@RoundSparrow.com ...

Has anyone had any trouble getting reverse addresses for the domain? I only have two active IP addresses, so managing reverse myself doesn't make sense (don't have the whole subnet)... has Weinbar proved "clued-in" on getting these in place upon request?

Thanks.

As Follows :

Weinbar DNS Details

NSI Technical Contact: WC1986-ORG
Primary Server: NS1.WH7.NET
Primary Server IP: 216.139.227.5
Secondary Server: NS2.WH7.NET
Secondary Server IP: 216.139.227.200

Originally posted by StephenRS
....Has anyone had any trouble getting reverse addresses for the domain? I only have two active IP addresses, so managing reverse myself doesn't make sense (don't have the whole subnet)... has Weinbar proved "clued-in" on getting these in place upon request?


They told me they are assigned IP addresses from their upstream provider and as such they are not delegated. Strange in my opinion.

/lennert

xtstrike -- those two servers have the same subnet --- I hope they aren't off the same router :) Not that uncommon for a small ISP.... and I'm on the same subnet too :)

hmm, that could indeed be a possibility, but im not sure - i got those off the web page - maybe another question to ask Mich when he returns.

although you must admit Microsoft did make the same mistake not so long ago :-)

I won't allow my two DNS servers to even be in the same city or on the same ISP :) Of course, for an ISP (Weinbar) it isn't that big of a deal... their network going down is a huge issue, not just for DNS.

For me, a client, it IS a big deal. If an ISP had a fire or something that might take WEEKS to resolve... I need some way to relocate my servers. Switching DNS servers can take DAYS -- where updating a server on the other (city) DNS server takes only hours...

So, is the official word from Weinbar that they don't allow you to have reverse DNS entries?

Thanks.

Since the IP addresses are not delegated, that is my understanding that they wont/cant setup reverse zones.

It would be interesting to get feedback from other hosting providers. Do they get their IPs delegated, do they set up reverse zones, and if, do they set up reverse zones with their own domain, or their customers domains. I used to have a provider that used his own domain, it is of course nicer if my IPs resolves to my domains.

/lennert

But I'm not looking to control the ZONE, I only want my entry (IP address) in the upstream zone to point to my server...

When you only have 1 to 7 IP's, it is my experience that larger ISP's allow this type of thing. Even Qwest allows it on my DSL (with static IP option)...

You sure we are talking the same thing? I don't want the zone myself, I want someone at the ISP to edit _their zone_ on _their DNS server_...

I belive we are talking about the same thing. The IP addresses I have received, they do not resolve on reverse lookup, hence there are no reverse zones setup on any name server.

Since the upstream provider of WeinBar have not delegated the IP addresses to WeinBar, WeinBar cant setup reverse zones themself. They have to ask their upstream.

When I asked them about reverse zones, they did add reverse zones for my IP addresses on their name servers, but since they were not delegated, it was to no use.

I have however not asked WeinBar if they can ask their upstream provider to do it, maybe they will if you ask.


/lennert

I'll ask them next week, hopefully they won't be so overworked...

We send email from our server and sometimes systems won't accept from a server without reverse...

Thanks for the info.

I have had the same problem with mail.

Before this thread I never thought about asking them to contact their upstream. Thanks.

/lennert

Question:

When you are going to move a DNS server and you change their IP addresses, lets say:

NS1.MYSERVER.COM 192.168.1.1
NS2.MYSERVER.COM 190.168.1.2

change IPs to:

NS1.MYSERVER.COM 10.0.0.1
NS2.MYSERVER.COM 10.0.0.2

Is it enough to contact the registrar for NS1 and NS2 and ask them to change the IPs? Don't I have to go back then and change the IPs on each individual domain that has a DNS entry on those DNS servers?

... and also, will the fact that the original IP addresses were delegated to the domain and the new ones are not create a problem? If the PTR record cannot resolve the host name because the new IPs are not delegated to the domain create a problem?

Thanks!

Originally posted by bert
...Is it enough to contact the registrar for NS1 and NS2 and ask them to change the IPs? Don't I have to go back then and change the IPs on each individual domain that has a DNS entry on those DNS servers?


Yes, it is enough to change IP on your name servers. All domains that have been configured for your name servers will automatically resolve to the new IP addresses of your name servers. The `whois´ information might however still show the name servers old IP addresses, but that doesn't matter. See thread http://webhostingtalk.com/showthread.php?threadid=7729


... and also, will the fact that the original IP addresses were delegated to the domain and the new ones are not create a problem? If the PTR record cannot resolve the host name because the new IPs are not delegated to the domain create a problem?


It did not cause me any major problems, just some problems with email, see above, and a problem installing qmail. There should be reverse zones however, for my case, I am certain WeinBar will fix it.

NB. I did setup reverse zones locally on my server, so my server is able to do reverse lookups.

/lennert

Originally posted by leat

It did not cause me any major problems, just some problems with email, see above, and a problem installing qmail. There should be reverse zones however, for my case, I am certain WeinBar will fix it.


lennert:

Did you move your name servers also? To Weinbar?

Originally posted by bert

Did you move your name servers also? To Weinbar?

Yes, I did. The master is running on my web server, and WeinBar hosts the slave, and yes, they are on the same subnet :).

/lennert

Didn't have any problems migrating?

Is there any option if we didn't want to have both on the same subnet? I guess just pay some of those DNS services right? They are just too expensive though. :(

The upstream host should definitely be delegating the reverse lookup zones to the company they are providing the IP space to. As long as it's Class C sized or larger, they can do this very easily.

Having correct reverse lookups, especially on dedicated servers, will help avoid situations where a remote system refuses access, or has a 70-second timeout trying the reverse lookup.

Kevin

Originally posted by sigma

Having correct reverse lookups, especially on dedicated servers, will help avoid situations where a remote system refuses access, or has a 70-second timeout trying the reverse lookup.

Kevin

Couldn't agree more. I have heard of people that have had numerous problems just because their servers are not providing reverse.

cim@beta:~$ whois -h arin.net NETBLK-MIME-227
Weinbar Communications Corporation (NETBLK-MIME-227)
P.O. Box 14184
Scottsdale, AZ 85267-4184
US

Netname: MIME-227
Netblock: 216.139.227.0 - 216.139.227.255

Coordinator:
Weinstein, Michael (MW884-ARIN) mweinstein@wbcom.net
480-661-1300

Record last updated on 09-Mar-2001.
Database last updated on 2-May-2001 22:46:59 EDT.

If their IPs are delegated directly from ARIN, I don't understand why they can't subdelegate to their customers.


Andrew

I talked to Michael and he said reverse DNS is no problem.


Andrew

:confused:

Originally posted by cimshimy
I talked to Michael and he said reverse DNS is no problem.
What is it that is not a problem? Fact is, reverse lookup does not work for the IPs I've received. I've put a ticket and according to the ticket, Michael will check with the upstream.

/lennert

Originally posted by bert
Didn't have any problems migrating?

Besides the server got rooted, it went very smooth :). All domains that were to be moved used my name servers, a big advantage. I learned through WHT that it is not necessary to update each domain when I change the name servers IP addresses, and that information was correct. I had no problems at all with any domain. The only question I have is the issue with reverse lookup that isn't working.

Originally posted by bert
Is there any option if we didn't want to have both on the same subnet? I guess just pay some of those DNS services right? They are just too expensive though. :(
Well, it is not within my budget either. Name servers should really be separated if one is really serious. The company I work for, we have placed our name servers in Sweden, Malaysia and Texas. Maybe an idea would be to set up a slave server that could be shared by several people with limited budget?

/lennert

Originally posted by leat
Maybe an idea would be to set up a slave server that could be shared by several people with limited budget?


I agree. I would definitely do something like that!

Look at it this way: any DNS service charges at least $1.00 per zone. You can lease a decent server (for DNS purposes only) for around $150.00 maybe even less and put hundreds if not thousands of zones there! :)

AMAZING!!!

RackShack offers reverse DNS with a $99.00/month box! ;)

I was out of town for 5 days... what is the word now, anyone able to get this?

I don't know. I know my box is at least doing the reverse for my own domain!

bert -- are you talking about Weinbar?

Originally posted by StephenRS
bert -- are you talking about Weinbar?

Yes I am!

Originally posted by StephenRS
I was out of town for 5 days... what is the word now, anyone able to get this?

Nope, one example that does not resolve is 216.139.227.150.

/lennart

I have spoken to Aperian and they will provide the reverse DNS for any site. Just send an email to noc@weinbar.com and we will forward that to the powers that be to add reverse zones.

Originally posted by WeinBar
I have spoken to Aperian and they will provide the reverse DNS for any site. Just send an email to noc@weinbar.com and we will forward that to the powers that be to add reverse zones.

That is really great news! Thank you Michael.

/lennert