Not - Re: New DNS server up and running
Robert Moskowitz
rgm at htt-consult.com
Thu Feb 21 01:59:25 UTC 2013
On 02/20/2013 08:28 PM, Robert Moskowitz wrote:
> It looks like no system, internal or external could access the DNS on
> my new server. IPTABLES was set for 53 both UDP and TCP. Firewall was
> OK. In fact a local system on the same subnet, thus NOT going through
> my firewall was denied access to the internal domain. Localhost of
> course works.
Oh, here is what I have for options in my internal view:
match-clients { httnets; };
match-destinations { httnets; };
recursion yes;
empty-zones-enable yes;
and httnets contains:
acl "httnets" {
127.0.0.1;
208.83.67.128/26;
192.168.32.0/24;
192.168.64.0/24;
192.168.96.0/24;
192.168.128.0/24;
192.168.192.0/24;
::1;
2607:f4b8:3:0::/64;
2607:f4b8:3:1::/64;
2607:f4b8:3:2::/64;
2607:f4b8:3:3::/64;
2607:f4b8:3:4::/64;
2607:f4b8:3:5::/64;
2607:f4b8:3:8::/64;
2607:f4b8:3:9::/64;
2607:f4b8:3:10::/64;
2607:f4b8:3:11::/64;
2607:f4b8:3:12::/64;
2607:f4b8:3:13::/64;
};
But I used my Verizon cellular wifi to connect a system from outside,
and when I did a DIG to my ip address, it was denied by named (as seen
in /var/log/messages), so the problem is broader than just my internal
view and why i think it is either the randomized port and firewall
interaction of selinux.
>
> So it is either the Linux firewall and bind port randomization, or it
> is SELINUX. How do I test to find out which?
>
> Since the new server is on the same IP address as the old, it is
> unplugged from the switch. I can switch back and forth between to two
> boxes, only taking the time for ARP table updates.
>
> So I hope someone can point me to what I have missed.
>
>
> On 02/20/2013 02:07 PM, Robert Moskowitz wrote:
>> Phase I is hopefully complete. A new onlo.htt-consult.com is up in
>> place of the old one.
>>
>> This is a faster box with current software. I will 'leave it alone'
>> for a week, unless someone tells me something is wrong with it.
>>
>> Next I unlock my domain from NetSol and choose my new registrar and
>> move. Thank you on all the recommendations. Now to choose.
>>
>> I study up on DNSSEC, maybe read a book or two.
>>
>> Then after Passover, start the signing!
>>
>> So I will be, ahem, quite here for awhile. Yeah sure. Well I DO
>> have other systems and services to migrate.
>>
>>
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