mail down suddenly after updated to v1.646

[fxs]

I have a dedicated server in france at ovh. Every website has an ip. I use immunify360.
I migrate panel to DA last year and until now it works properly.

OS is ubuntu (Ubuntu Server 20.04 LTS "Focal Fossa").
OVH doesn't recomend directadmin for ubuntu. Is it correct or not?

DirectAdmin has been updated to v1.646

13.01.2023 01:33

After 01/13/23 mail doesn't work anymore.
Intodns give some information:
"MX name validity The MX records that do not seem valid hostname: _dc-mx.289d4032e576.domain.ch
This can cause problems"
I don't understand why it's written: _dc-mx.289d4032e576?

In directadmin panel everything seem correct but:
"nameserver 1ns1.server-ip.da.direct
ns2.server-ip.da.direct"
Is it normal?
or nameserver should be nsxxxxx.ip.eu?
Wathever is this relevant?
other hints:
most websites are under cloudflare and intodns says no word.
there is one website not under clouflare and intodns give information:
**
Name of nameservers are valid WARNING: At least one of your NS name does not seem a valid host name
The ones that do not seem valid:
ns1.server-ip.da.direct ns2.server-ip.da.direct
**
Different subnets WARNING: Not all of your nameservers are in different subnets
**
Different autonomous systems WARNING: Single point of failure
**

Not sure if the config was quite correct before 01/13/23 but the hotfix has created some disturbance.

I'm new with directadmin. The best way to fix that. I have access to all level.

thanks for helping

best regards

 

[Active8]

In directadmin panel everything seem correct but:
"nameserver 1ns1.server-ip.da.direct
ns2.server-ip.da.direct"
Is it normal?

No, those are default values
Is the DNS of the server external controlled ? is some vague in your post.
We can not help you much without real domain /ip, if you want you can send it to me by PM

 

[fxs]

No, those are default values

Ok thanks. I will change that this night. we'll see what happens

Is the DNS of the server external controlled ?

Interesting questions.
Most of websites of this server are handled by cloudfflare.
At the registrar (infomaniak), dns are those given by clouflare.
at the dedicated server, dns should be the normal one, c-à-d related to nsxxxxx.ip.eu (given by ovh)?

we'll see this night

thks

best regards