At 01:24 PM 12/11/2007, Bill Vermillion wrote:
On Tue, Dec 11, 2007 at 18:23 , while impersonating an expert on
the internet, [EMAIL PROTECTED] sent this to stdout:
> Date: Tue, 11 Dec 2007 06:09:11 -0600
> From: Derek Ragona <[EMAIL PROTECTED]>
> Subject: Re: named mystery
> To: jekillen <[EMAIL PROTECTED]>, User Questions >
> At 12:57 AM 12/10/2007, jekillen wrote:
> >I have two name servers for four domains.
> >The primary name server is running FreeBSD v 6.0
> >and the secondary is running v 6.2.
> >I have an MX record for each of the four registered
> >domains. I have set up Postfix to act as a smart host
> >mail hub (the MX host). One of the named record
> >database is for one of the sites. When I try to send
> >an E-mail from this message to list e-mail address. The messages
> >bounce for dns lookup failure.
> >The name that is being looked up is
> > <mxhost>.<domainName>.<tld>.<targetDomainName>.<tld>
> >Some how the two names are being mashed together and then
> >looked up, causing the resolution failure.
As the other respondent noted, that was because of the missing
I've found that 'nslint' in the /usr/ports/dns hierarchy
is a nice little program that will tell you all your errors.
I actually run it's output through a 'filter' to get rid of
extranous things such as 'in use by xxxx.xxx' as i have
several sites that respond to the same IP.
> >dig targetDomainName.com -t MX produces the record according to
> >my ISP's name servers, which is the mashed version. Possibly they
> >have it wrong? Someone is screwing up the lookup for this.
> >There was a period missing after the MX host name record.
> >I added that and rebooted the machine with the primary name
> >server just to insure that named got the change and checked the
> >secondary record and it has the change
You don't have to reboot Unix systems for almost all things which
don't require a kernel change. named.restart will do the job.
> >I did dig @targerDomainName.com -t MX and got my secondary
> >name server responding. I checked the primary server to see that
> >it is actually running at the time, it was and is.
> >but the bak file on the secondary server has
> > IN MX 10 host.domain.tld.
> >$ORIGIN targetDomain.tld.
> >when the record on primary server is
> >@ IN MX 10 host.domain.tld.
> >@ in this context should reference the domain this
> >file is for.
> >If anyone is a wiz at dns record and problems can you
> >make any suggestions or recommendations?
> >thank you in advance
> >Jeff K
> I just checked how my DNS files look on two 6.2 servers. The primary zone
> files will have the:
> while the secondary zone files will not have these.
> In my zone files the MX appears on the primary as a the lines: ;
> MX Record @ IN MX 10 mail.mydomain.com.
> Note the last period after the domain suffix is there to show
> it is a fully qualified name, with that name defined earlier in
> this zone file.
> On the secondary server the zone files has: MX 10
> In both files the 10 is the weight for the MX record. If you
> have multiple servers you want to accept email, you would use
> this number to designate the order they should get mail, smaller
> numbers are primary to get email.
> When you make a change on the primary DNS server zone file be
> sure to change the serial number in that zone file. Also I
> usually stop and start named on the primary. I also remove the
> backup files on the secondary servers and stop and start named
> on those too to see that the new files are transferred and thus
> being used.
I have about 250 zones in my DNS and I've done something which
makes sure that I always have the correct date, but all the
domains will show the same date.
I've extracted much of what you put in a zone file and put
it in a file called named.soa . And in each file
is used the $INCLUDE directive [quite handy] that
is $INCLUDE named.soa
Then I just update the serial number in the one file. It saves
a lot of time, particualary yesterday when one client of
a support house that uses our servers decided he needed
all the standard variants .com, .net, .biz, .mobi, .info, .org,
and .tv - plus 5 variants on his domain.
I'd just dupe the zone file and make global changes in 'vi'
and only have to update the serial number in the named.soa
just one time.
I didn't know about the include statement, I will do that with my zone
files too. Good to know about the nslint utility too. I am one who makes
typos, so it will be a good way to make sure the files are at least syntax
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