Questions on how to setup Reverse DNS in bind 9
Spork Schivago
sporkschivago at gmail.com
Tue Jul 19 23:28:13 UTC 2016
Okay,
I got the A records set back up again. Here's the important stuff I think.
Does it look right?
; cPanel first:11.44.1.18 (update_time):1468969397
Cpanel::ZoneFile::VERSION:1.3 hostname:franklin.jetbbs.com latest:11.56.0.28
; Zone file for jetbbs.com
$TTL 14400
jetbbs.com. 86400 IN SOA ns1.jetbbs.com. nslookup.jetbbs.com.
(
2016071710 ;Serial
Number
43200 ;refresh
7200 ;retry
2419200 ;expire
86400 ;minimum
)
jetbbs.com. 86400 IN NS ns1.jetbbs.com.
jetbbs.com. 86400 IN NS ns2.jetbbs.com.
jetbbs.com. 14400 IN A 104.238.117.105
jetbbs.com. 14400 IN A 132.148.11.44
localhost 14400 IN A 127.0.0.1
jetbbs.com. 14400 IN MX 0 jetbbs.com.
www 14400 IN A 104.238.117.105
www 14400 IN A 132.148.11.44
ns1 14400 IN A 104.238.117.105
ns2 14400 IN A 132.148.11.44
franklin 14400 IN A 104.238.117.105
franklin 14400 IN A 132.148.11.44
There's more to the file but I left it out, because it's just the records
for the whm / cPanel stuff and a few other things domain key TXT records,
etc. I'm not sure if those are something that could be used to get into
my server or not if I shared them.
For the reverse DNS pointer records, I think when I contact GoDaddy, I'm
going to ask if they can setup a PTR record so 104.238.117.105 points to
franklin.jetbbs.com and 132.148.11.44 points to franklin.jetbbs.com as
well. I think that'll help with mail filtering and stuff.
Thanks.
On Tue, Jul 19, 2016 at 5:45 PM, Spork Schivago <sporkschivago at gmail.com>
wrote:
> Thanks for the response.
>
> I had removed the A record after it didn't work. I was speaking in past
> tense there. One of the DNS checking tools I was using went nuts
> complaining about something not being right so I undid my changes. I'll
> recreate it.
>
> The idea behind having two IP addresses and setting up the DNS servers was
> because I wanted to eventually setup some redundancy and play around with
> running a server out of my house. I'll create the second A record for
> jetbbs.com again but when we get into the new house, I'll change it so
> the IP address for the second A record points to my server at the house.
> That way, if one server goes down, people can still connect. It'd be a
> great opportunity to learn this stuff a bit more I think.
>
> Thanks.
>
> On Tue, Jul 19, 2016 at 3:30 AM, Matus UHLAR - fantomas <uhlar at fantomas.sk
> > wrote:
>
>> On 18.07.16 19:44, Spork Schivago wrote:
>>
>>> At this time franklin.jetbbs.com ONLY RESOLVES TO 104.238.117.105
>>>
>>> The way I wanted it was 104.238.117.105 AND 132.148.11.44 to point to
>>> jetbbs.com but I think I setup the DNS record wrong. I just added
>>> another A record for jetbbs.com and added the IP address 132.148.11.44
>>> to
>>> it. This part wasn't for the reverse DNS. I got two IP addresses I'm
>>> using.
>>>
>>
>> jetbbs.com IS NOT franklin.jetbbs.com
>>
>> I got an A name for franklin, and that's the 104.238.117.105. Should I
>>> have added another A name for franklin as well to setup the round robin
>>> stuff? You know, when someone connects to JetBBS.com, the first time
>>> they
>>> connect, it takes them to 104.238.117.105. The next time they connect,
>>> it
>>> takes them to 132.148.11.44.
>>>
>>
>> you don't have to set up "round robin" and you can't decide who connects
>> to
>> which IP.
>>
>> If you set up two IP addresses for one DNS name, random servers will
>> connect
>> to random addresses in rantom times.
>>
>> Is this why whenever I pinged jetbbs.com, I
>>> only got a reply from 132.148.11.44 and not from 104.238.117.105 you
>>> think?
>>>
>>
>> that is because jetbbs.com only contains 104.238.117.105 now...
>>
>> Because I didn't setup another A name for franklin? Thanks and sorry
>>> for all the questions. I know these probably aren't really bind related
>>> questions anymore. Thanks!
>>>
>>
>> once more: jetbbs.com IS NOT franklin.jetbbs.com !
>>
>> FYI currently they both only contain 104.238.117.105
>>
>> --
>> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
>> Warning: I wish NOT to receive e-mail advertising to this address.
>> Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
>> One OS to rule them all, One OS to find them, One OS to bring them all
>> and into darkness bind them _______________________________________________
>>
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