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I want to add: [ at ] CNAME svr-web.otherdomain.com.
I get an Error: An alias (CNAME) record cannot be added to this DNS name. The DNS name contains records that are incompatible with the CNAME record
I can add a [ at ] A 10.1.22.22
What Gives?
Thank you,
Scott<-
Here is my Zone file:
; ; Database file domain.com.dns for domain.com zone. ; Zone version: 2007043001; [ at ] IN SOA ns1.domain.net. hostmaster.domain.net. ( 2005120604 ; serial number 21600 ; refresh 3600 ; retry 691200 ; expire 86400 ) ; default TTL ; ; Zone NS records ; [ at ] NS ns1.dnsdomain.net. [ at ] NS ns1.otherdomain.net. ; ; Zone records ; [ at ] MX 10 mail.otherdomain.com. www CNAME svr-web.otherdomain.com.
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Read inline please.
In news:ED807445-4AE2-4929-AFCB-BBECCB195946[ at ]microsoft.com, Scott Townsend <scooter133[ at ]community.nospam> typed:
[Quoted Text] > I want to add: > [ at ] CNAME svr-web.otherdomain.com. > > I get an Error: > An alias (CNAME) record cannot be added to this DNS name. The DNS > name contains records that are incompatible with the CNAME record > > I can add a > [ at ] A 10.1.22.22 > > What Gives? > > Thank you, > > Scott<- > > Here is my Zone file: > > ; > ; Database file domain.com.dns for domain.com zone. > ; Zone version: 2007043001; > [ at ] IN SOA ns1.domain.net. > hostmaster.domain.net. ( 2005120604 ; > serial number 21600 ; refresh > 3600 ; retry > 691200 ; expire > 86400 ) ; default TTL > ; > ; Zone NS records > ; > [ at ] NS ns1.dnsdomain.net. > [ at ] NS ns1.otherdomain.net. > ; > ; Zone records > ; > [ at ] MX 10 mail.otherdomain.com. > www CNAME svr-web.otherdomain.com.
You cannot have a CNAME on the same node as an MX record.
-- Best regards, Kevin D. Goodknecht Sr. [MVP] Hope This Helps Send IM: http://www.icq.com/people/webmsg.php?to=296095728 =================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue, to respond directly to me remove the nospam. from my email address. =================================== http://www.lonestaramerica.com/ http://support.wftx.us/ http://message.wftx.us/ =================================== Use Outlook Express?... Get OE_Quotefix: It will strip signature out and more http://home.in.tum.de/~jain/software/oe-quotefix/ =================================== Keep a back up of your OE settings and folders with OEBackup: http://www.oehelp.com/OEBackup/Default.aspx ===================================
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Hi Scott,
Thank you for using newsgroup!
According to your post, I noticed that you receive an error message that the CNAME record cannot be created and based on my experience, this may occur if you did not type any character in "Alias Name". To create a Blank CNAME, you need to type "*" in Alias Name line so that system will resolve doamin.com to the IP A record you specified.
However, this workaround will create problem in Active Directory integrated DNS. In AD integrated DNS domain name is usually resolved to the DCs. If we make a manual entry in AD integrated DNS pointing to a Web Server we will end up in trouble with AD / Domain functions.
For example, client computers will apply group policy by address \\domain.com\sysvol, in general cases, this address will be resolved to \\DC1\sysvol or \\DC2\sysvol, because by default the domain.com will be resolved to DCs. After we created Blank NNAME, \\domain.com\sysvol will be resolved to the \\webserver\sysvol and if the web serer is not the DC, GPO will be failed to apply.
So the best option is to serve a page on www.domain.com, you can create a CNAME record WWW, point it to the web serer where the web sites are hosted. You can create other CNAME record such as FTP also.
If you have any concerns, please feel free to post back.
Sincerely, Tom Zhang, MCSE 2003 Microsoft Online Support Microsoft Global Technical Support Center
Get Secure! - www.microsoft.com/security ===================================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ===================================================== This posting is provided "AS IS" with no warranties, and confers no rights.
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So the domains that I would like to have the root domain mapped to the webserver are not the AD Domain. They are AD Integrated domains in DNS, but they are not the AD Domain.
So the only root records I have are the SOA, NS and MX.
When I add * CNAME webserver.domain.com and then run NSLookup, it does not find an IP for the domain. it does return info for webserver.domain.com.
Thanks, Scott<-
"tom" <v-tozhan[ at ]online.microsoft.com> wrote in message news:NsPf0C9iHHA.3528[ at ]TK2MSFTNGHUB02.phx.gbl...
[Quoted Text] > Hi Scott, > > Thank you for using newsgroup! > > According to your post, I noticed that you receive an error message that > the CNAME record cannot be created and based on my experience, this may > occur if you did not type any character in "Alias Name". To create a Blank > CNAME, you need to type "*" in Alias Name line so that system will resolve > doamin.com to the IP A record you specified. > > However, this workaround will create problem in Active Directory > integrated > DNS. In AD integrated DNS domain name is usually resolved to the DCs. If > we > make a manual entry in AD integrated DNS pointing to a Web Server we will > end up in trouble with AD / Domain functions. > > For example, client computers will apply group policy by address > \\domain.com\sysvol, in general cases, this address will be resolved to > \\DC1\sysvol or \\DC2\sysvol, because by default the domain.com will be > resolved to DCs. After we created Blank NNAME, \\domain.com\sysvol will be > resolved to the \\webserver\sysvol and if the web serer is not the DC, GPO > will be failed to apply. > > So the best option is to serve a page on www.domain.com, you can create a > CNAME record WWW, point it to the web serer where the web sites are > hosted. > You can create other CNAME record such as FTP also. > > If you have any concerns, please feel free to post back. > > Sincerely, > Tom Zhang, MCSE 2003 > Microsoft Online Support > Microsoft Global Technical Support Center > > Get Secure! - www.microsoft.com/security > ===================================================== > When responding to posts, please "Reply to Group" via your newsreader so > that others may learn and benefit from your issue. > ===================================================== > This posting is provided "AS IS" with no warranties, and confers no > rights. >
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Hi Scott,
In your first post, you said you *could* add "[ at ] A 10.1.22.22", but when you listed the zone records I didn't see this entry.
A CNAME must point to an A record. Can you verify that you have this A record created?
-- Greg Lindsay [MSFT]
Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
"Scott Townsend" <scooter133[ at ]community.nospam> wrote in message news:148E15EF-7366-4C52-8C20-9B69720A1514[ at ]microsoft.com...
[Quoted Text] > So the domains that I would like to have the root domain mapped to the > webserver are not the AD Domain. They are AD Integrated domains in DNS, > but they are not the AD Domain. > > So the only root records I have are the SOA, NS and MX. > > When I add * CNAME webserver.domain.com and then run NSLookup, it does > not find an IP for the domain. it does return info for > webserver.domain.com. > > Thanks, > Scott<- > > > "tom" <v-tozhan[ at ]online.microsoft.com> wrote in message > news:NsPf0C9iHHA.3528[ at ]TK2MSFTNGHUB02.phx.gbl... >> Hi Scott, >> >> Thank you for using newsgroup! >> >> According to your post, I noticed that you receive an error message that >> the CNAME record cannot be created and based on my experience, this may >> occur if you did not type any character in "Alias Name". To create a >> Blank >> CNAME, you need to type "*" in Alias Name line so that system will >> resolve >> doamin.com to the IP A record you specified. >> >> However, this workaround will create problem in Active Directory >> integrated >> DNS. In AD integrated DNS domain name is usually resolved to the DCs. If >> we >> make a manual entry in AD integrated DNS pointing to a Web Server we will >> end up in trouble with AD / Domain functions. >> >> For example, client computers will apply group policy by address >> \\domain.com\sysvol, in general cases, this address will be resolved to >> \\DC1\sysvol or \\DC2\sysvol, because by default the domain.com will be >> resolved to DCs. After we created Blank NNAME, \\domain.com\sysvol will >> be >> resolved to the \\webserver\sysvol and if the web serer is not the DC, >> GPO >> will be failed to apply. >> >> So the best option is to serve a page on www.domain.com, you can create a >> CNAME record WWW, point it to the web serer where the web sites are >> hosted. >> You can create other CNAME record such as FTP also. >> >> If you have any concerns, please feel free to post back. >> >> Sincerely, >> Tom Zhang, MCSE 2003 >> Microsoft Online Support >> Microsoft Global Technical Support Center >> >> Get Secure! - www.microsoft.com/security >> ===================================================== >> When responding to posts, please "Reply to Group" via your newsreader so >> that others may learn and benefit from your issue. >> ===================================================== >> This posting is provided "AS IS" with no warranties, and confers no >> rights. >> >
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Read inline please.
In news:%23YFuxZDjHHA.1884[ at ]TK2MSFTNGP06.phx.gbl, Greg Lindsay [MSFT] <greglin[ at ]microsoft.com> typed:
[Quoted Text] > Hi Scott, > > In your first post, you said you *could* add "[ at ] A > 10.1.22.22", but when you listed the zone records I didn't see this > entry. > > A CNAME must point to an A record. Can you verify that you have this A > record created?
This is irrelevant, you CANNOT have a CNAME record on the same node as an MX record. That is why he gets this error: > I get an Error: > An alias (CNAME) record cannot be added to this DNS name. The DNS name > contains records that are incompatible with the CNAME record
-- Best regards, Kevin D. Goodknecht Sr. [MVP] Hope This Helps Send IM: http://www.icq.com/people/webmsg.php?to=296095728 =================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue, to respond directly to me remove the nospam. from my email address. =================================== http://www.lonestaramerica.com/ http://support.wftx.us/ http://message.wftx.us/ =================================== Use Outlook Express?... Get OE_Quotefix: It will strip signature out and more http://home.in.tum.de/~jain/software/oe-quotefix/ =================================== Keep a back up of your OE settings and folders with OEBackup: http://www.oehelp.com/OEBackup/Default.aspx ===================================
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In message <#YFuxZDjHHA.1884[ at ]TK2MSFTNGP06.phx.gbl> "Greg Lindsay [MSFT]" <greglin[ at ]microsoft.com> wrote:
[Quoted Text] >Hi Scott, > >In your first post, you said you *could* add "[ at ] A 10.1.22.22", but >when you listed the zone records I didn't see this entry. > >A CNAME must point to an A record. Can you verify that you have this A >record created?
huh? Does MSDNS actually enforce just a retarded rule?
There is no requirement in the DNS world at all that an MX record point to an A-record.
-- Just sit through this NRA meeting Marge, and if you still don't think guns are great then we'll argue some more. -- Homer Simpson
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Read inline please.
In news:un4g33da2lslk3k2ukg07oeu7onckm3tti[ at ]4ax.com, DevilsPGD <spam_narf_spam[ at ]crazyhat.net> typed:
[Quoted Text] > In message <#YFuxZDjHHA.1884[ at ]TK2MSFTNGP06.phx.gbl> "Greg Lindsay > [MSFT]" <greglin[ at ]microsoft.com> wrote: > >> Hi Scott, >> >> In your first post, you said you *could* add "[ at ] A >> 10.1.22.22", but when you listed the zone records I didn't see this >> entry. >> >> A CNAME must point to an A record. Can you verify that you have this >> A record created? > > huh? Does MSDNS actually enforce just a retarded rule? > > There is no requirement in the DNS world at all that an MX record > point > to an A-record.
You are correct, it does not have to return an A record, there are other record types the MX may return, but RFC2181 10.3 specifically states that MX records never return a CNAME.
-- Best regards, Kevin D. Goodknecht Sr. [MVP] Hope This Helps Send IM: http://www.icq.com/people/webmsg.php?to=296095728 =================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue, to respond directly to me remove the nospam. from my email address. =================================== http://www.lonestaramerica.com/ http://support.wftx.us/ http://message.wftx.us/ =================================== Use Outlook Express?... Get OE_Quotefix: It will strip signature out and more http://home.in.tum.de/~jain/software/oe-quotefix/ =================================== Keep a back up of your OE settings and folders with OEBackup: http://www.oehelp.com/OEBackup/Default.aspx ===================================
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You're right Kevin, for some reason I was thinking this was a dangling CNAME problem. The host that would have to be missing an A record for that to be the case is svr-web.otherdomain.com.
-- Greg Lindsay [MSFT]
Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
"Kevin D. Goodknecht Sr. [MVP]" <admin[ at ]nospam.WFTX.US> wrote in message news:O8lULiGjHHA.4516[ at ]TK2MSFTNGP03.phx.gbl...
[Quoted Text] > Read inline please. > > In news:%23YFuxZDjHHA.1884[ at ]TK2MSFTNGP06.phx.gbl, > Greg Lindsay [MSFT] <greglin[ at ]microsoft.com> typed: >> Hi Scott, >> >> In your first post, you said you *could* add "[ at ] A >> 10.1.22.22", but when you listed the zone records I didn't see this >> entry. >> >> A CNAME must point to an A record. Can you verify that you have this A >> record created? > > This is irrelevant, you CANNOT have a CNAME record on the same node as an > MX > record. > That is why he gets this error: >> I get an Error: >> An alias (CNAME) record cannot be added to this DNS name. The DNS >> name >> contains records that are incompatible with the CNAME record > > > -- > Best regards, > Kevin D. Goodknecht Sr. [MVP] > Hope This Helps > Send IM: http://www.icq.com/people/webmsg.php?to=296095728> =================================== > When responding to posts, please "Reply to Group" > via your newsreader so that others may learn and > benefit from your issue, to respond directly to > me remove the nospam. from my email address. > =================================== > http://www.lonestaramerica.com/> http://support.wftx.us/> http://message.wftx.us/> =================================== > Use Outlook Express?... Get OE_Quotefix: > It will strip signature out and more > http://home.in.tum.de/~jain/software/oe-quotefix/> =================================== > Keep a back up of your OE settings and folders > with OEBackup: > http://www.oehelp.com/OEBackup/Default.aspx> =================================== > >
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Read inline please.
In news:%23gWZREOjHHA.392[ at ]TK2MSFTNGP06.phx.gbl, Greg Lindsay [MSFT] <greglin[ at ]microsoft.com> typed:
[Quoted Text] > You're right Kevin, for some reason I was thinking this was a > dangling CNAME problem. The host that would have to be missing an A > record for that to be the case is svr-web.otherdomain.com.
I'm still not sure the OP has picked up on this yet. RFCs plainly state that CNAMES cannot exist on the same node with any other record, and CNAMES must point to Address records or you end up with a dangling CNAME.
-- Best regards, Kevin D. Goodknecht Sr. [MVP] Hope This Helps Send IM: http://www.icq.com/people/webmsg.php?to=296095728 =================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue, to respond directly to me remove the nospam. from my email address. =================================== http://www.lonestaramerica.com/ http://support.wftx.us/ http://message.wftx.us/ =================================== Use Outlook Express?... Get OE_Quotefix: It will strip signature out and more http://home.in.tum.de/~jain/software/oe-quotefix/ =================================== Keep a back up of your OE settings and folders with OEBackup: http://www.oehelp.com/OEBackup/Default.aspx ===================================
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RFC 1034 states "If a CNAME RR is present at a node, no other data should be present; this ensures that the data for a canonical name and its aliases cannot be different. This rule also insures that a cached CNAME can be used without checking with an authoritative server for other RR types."
However, I think RFC 2181 (Clarifications to the DNS Specification) does a better job of explaining why:
10.3. MX and NS records
The domain name used as the value of a NS resource record, or part of the value of a MX resource record must not be an alias. Not only is the specification clear on this point, but using an alias in either of these positions neither works as well as might be hoped, nor well fulfills the ambition that may have led to this approach. This domain name must have as its value one or more address records. Currently those will be A records, however in the future other record types giving addressing information may be acceptable. It can also have other RRs, but never a CNAME RR.
Searching for either NS or MX records causes "additional section processing" in which address records associated with the value of the record sought are appended to the answer. This helps avoid needless extra queries that are easily anticipated when the first was made.
Additional section processing does not include CNAME records, let alone the address records that may be associated with the canonical name derived from the alias. Thus, if an alias is used as the value of an NS or MX record, no address will be returned with the NS or MX value. This can cause extra queries, and extra network burden, on every query. It is trivial for the DNS administrator to avoid this by resolving the alias and placing the canonical name directly in the affected record just once when it is updated or installed. In some particular hard cases the lack of the additional section address records in the results of a NS lookup can cause the request to fail.
-- Greg Lindsay [MSFT]
Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
"Kevin D. Goodknecht Sr. [MVP]" <admin[ at ]nospam.WFTX.US> wrote in message news:uj0AMNRjHHA.4772[ at ]TK2MSFTNGP05.phx.gbl...
[Quoted Text] > Read inline please. > > In news:%23gWZREOjHHA.392[ at ]TK2MSFTNGP06.phx.gbl, > Greg Lindsay [MSFT] <greglin[ at ]microsoft.com> typed: >> You're right Kevin, for some reason I was thinking this was a >> dangling CNAME problem. The host that would have to be missing an A >> record for that to be the case is svr-web.otherdomain.com. > > I'm still not sure the OP has picked up on this yet. RFCs plainly state > that > CNAMES cannot exist on the same node with any other record, and CNAMES > must > point to Address records or you end up with a dangling CNAME. > > > -- > Best regards, > Kevin D. Goodknecht Sr. [MVP] > Hope This Helps > Send IM: http://www.icq.com/people/webmsg.php?to=296095728> =================================== > When responding to posts, please "Reply to Group" > via your newsreader so that others may learn and > benefit from your issue, to respond directly to > me remove the nospam. from my email address. > =================================== > http://www.lonestaramerica.com/> http://support.wftx.us/> http://message.wftx.us/> =================================== > Use Outlook Express?... Get OE_Quotefix: > It will strip signature out and more > http://home.in.tum.de/~jain/software/oe-quotefix/> =================================== > Keep a back up of your OE settings and folders > with OEBackup: > http://www.oehelp.com/OEBackup/Default.aspx> =================================== > >
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Hi Scott,
I apologize for the delay in response.
Based on my research, and also some related cases, you can perform the following steps to turn off this feature:
1. Found that the deleted record had replicated back into the server, and that was causing a conflict. This can also happen with mx and other alias records. 2. Deleted the problem A record 3. Created CNAME record 4. Forced replication
If anything is unclear or you have any concerns, please feel free to let me know. I am glad to be of assistance.
Have a nice day!
Sincerely, Tom Zhang, MCSE 2003 Microsoft Online Support Microsoft Global Technical Support Center
Get Secure! - www.microsoft.com/security ===================================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ===================================================== This posting is provided "AS IS" with no warranties, and confers no rights.
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Dear Customer,
I just wanted to say hi, and to see how things are going. I haven't heard back from you yet and I was wondering if there are any updates on the service request.
Thanks.
Sincerely, Tom Zhang Microsoft Online Support Microsoft Global Technical Support Center
Get Secure! - www.microsoft.com/security ===================================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ===================================================== This posting is provided "AS IS" with no warranties, and confers no rights.
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