a few questions about BIND (MX and Reverse)
hi, i just setup named in a box. This box #1 is acting as the DNS server for my LAN. The domain I added in the box #1 is able to be resolved by the LAN which the DNS server is pointing to it. So, I called that named is properly working rite now.
What confuses me are : 1). The MX Records. I use this mxtoolbox [dot] com/index.aspx page to check my MX. Sometimes it shows a valid records like this : Preference Host Name IP Address TTL 30 a.domain.com 1.2.3.4 3600 but if i refreshed the page, sometimes it will shows : Preference Host Name IP Address TTL 10 a.domain.com.domain.com 1.2.3.4 3600 Why is that happening? If I looked it up a few times, it will shows correct values again.. Did I misconfigured something in named conf or its just the mxtoolbox.com page that causing that? This is how MX configured in my zone file : Code:
$TTL 3600 2). Do I need to add reverse zone? sorry but I still not understand about what this reverse zone for. |
1. have you tried to query your mx record from client with host -t mx [host] or dig -t mx [host] ,
since you only have 1 mx record, try to change 30 to 10. 2. reverse zone is purposed to resolve ip to hostname. hope help. |
Quote:
- If I set the DNS Server is the box #1 which I configured, the dig will return okay like this Code:
# dig -t mx domain.com Code:
# dig -t mx domain.com Quote:
Thanks for your help Sir. :) |
I also try from another ISP's DNS and this what I've got :
Code:
# host -t mx domain.com |
I can't give you any info about the webapp that configures your DNS zone files and named.conf file. if dig is giving the correct answers using your configured server, this is good confirmation.
Perhaps the other results are from recent cached resutls, not yet timed out? Make sure you have A records for ns1.domain.com. and ex.domain.com. referenced in your zone file as; Code:
IN NS ns1.domain.com. |
perhaps its not been updated on public dns like mr C posted, since you said that you migrate it from win2k box, when
exactly u migrate it ? You should conf reverse dns, since nowdays some spam software use this method to confirm the sender domain. hope help. Jakarta heh, aku jg jakarta hehehe. |
haha.. i didn't notice it earlier. jakarta toh..
anyway, yes, i just migrate it yesterday and perhaps i just need to wait yah. what made me confuse is that ex.domain.com.domain.com. Where do that come from.. about reverse dns.. after reading few helps, i guess i've got the point.. and am trying to configure it rite now. Thanks :) |
Just a thought. Is the new serial higher than the old Windows one? I've seen windows use some very strange serial numbers for zone files.
Carl. |
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