Quote:
Originally Posted by phoenix  Might it be the fact that the IP address in your hosts file is not the same IP address returned by your DNS A record (it should be)? |
Hi Bill,
thanks for the feedback.
Could you please point out which one(s) you mean?
We might have some kind of a "complex" setup I think-
The involved servers are all in the same domain, but have different IP's.
We have the server called dddd.domain.com which does a grey-listing of the incoming mails before it forwards it to zimbra.domain.com - This might explain the different IP's in the A-Record output & the host file.
I've unfortunately no access to dddd.domain.com (is the security-/nw-teams setup), but trying to get from them the same info's that need to be verified according to Split_dns how-to.
-snip-
..
ip4:xx.xxx.xxx.202 a:zimbra.domain.com
ip4:xx.xxx.xxx.212 a:maildo.domain.com
ip4:xx.xxx.xxx.25 a:dddd.domain.com a:smtp.do.domain.com -all"..
-snip-
Thnx!
****
Hi all,
We have this strange same problem with a goofy error and this is happening quite often in our zimbra implementation - the appended string to the domain-name varies and it seems to be depending on how many strings the user-name has before the @ divider - e.g. sometimes it's
userabc@domain.ain.com and when there is 1 less char it's
userab@domain.main.com - Seems to be more a regex string extraction issue to
me than a missconfigured DNS record or so, else the appended string should be always the same - Would have anyone an idea what could cause this issue or how to track it down to pin-point the root-cause?
Here are some output's from the Split_dns how-to.
note: the string domain is place-holder for our real domain.
1) host $(hostname)
zimbra.domain.com has address xx.xx.xx.202
zimbra.domain.com mail is handled by 40 dddd.domain.com.
2) dig domain.com mx
; <<>> DiG 9.3.2-P2.3 <<>> domain.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39944
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4
;; QUESTION SECTION:
;domain.com. IN MX
;; ANSWER SECTION:
domain.com. 75585 IN MX 10 dddd.domain.com.
;; AUTHORITY SECTION:
domain.com. 53332 IN NS ns3.do.domain.net.
domain.com. 53332 IN NS ns2.domain.de.
domain.com. 53332 IN NS ns1.do.domain.net.
;; ADDITIONAL SECTION:
dddd.domain.com. 36520 IN A xx.xxx.xxx.25
ns1.do.domain.net. 14691 IN A xx.xxx.xxx.31
ns2.domain.de. 14691 IN A xx.xxx.xx.31
ns3.do.domain.net. 14691 IN A xx.xx.xxx.53
;; Query time: 0 msec
;; SERVER: 10.x.x.53#53(10.x.x.53)
;; WHEN: Thu May 26 13:10:09 2011
;; MSG SIZE rcvd: 189
3) dig domain.com any
; <<>> DiG 9.3.2-P2.3 <<>> domain.com any
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33316
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 3, ADDITIONAL: 4
;; QUESTION SECTION:
;domain.com. IN ANY
;; ANSWER SECTION:
domain.com. 75383 IN MX 10 dddd.domain.com.
domain.com. 9058 IN TXT "v=spf1 ip4:xx.xxx.xxx.202 a:zimbra.domain.com ip4:xx.xxx.xxx.212 a:maildo.domain.com
ip4:xx.xxx.xxx.25 a:ddd.domain.com a:smtp.do.domain.com -all"
domain.com. 4889 IN A xx.xxx.xx.13
domain.com. 53130 IN NS ns2.domain.de.
domain.com. 53130 IN NS ns3.do.domain.net.
domain.com. 53130 IN NS ns1.do.domain.net.
;; AUTHORITY SECTION:
domain.com. 53130 IN NS ns3.do.domain.net.
domain.com. 53130 IN NS ns1.do.domain.net.
domain.com. 53130 IN NS ns2.domain.de.
;; ADDITIONAL SECTION:
dddd.domain.com. 36318 IN A xx.xxx.xxx.25
ns1.do.domain.net. 14489 IN A xx.xxx.xxx.31
ns2.domain.de. 14489 IN A xx.xxx.xx.31
ns3.do.domain.net. 14489 IN A xx.xxx.xxx.53
;; Query time: 0 msec
;; SERVER: 10.x.x.53#53(10.x.x.53)
;; WHEN: Thu May 26 13:13:31 2011
;; MSG SIZE rcvd: 406
4) cat /etc/resolv.conf
domain domain.com
search domain.com
nameserver 10.x.x.53
nameserver 10.x.x.14
nameserver 10.x.x.15
nameserver 10.x.x.16
cat /etc/hosts
127.0.0.1 localhost.localdomain localhost
78.xxx.xxx.202 zimbra.domain.com zimbra
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
***
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Strange domain-name resolving - strings are appended 
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