OP seems to have some predetermined beliefs that won’t be changed by our input, so, why bother. This isn’t rocket science and stuff that we have pointed out how to check obviously hasn’t been done. Seems to have come here to complain that things don’t meet their expectations and expects them to change from this end.
This is from a large provider that I have my server from. It’s all there if you bother to look for it and learn the software. Hint, the software isn’t going to learn each individual. Well not yet.
We were talking about DNS. Even a static IP doesn’t mean you can’t draw other configurable options form DHCP. DNS and default route would still be a very good thing to do from the provider’s point of view.
One thing I hate in forums is when people try to be ironic and sit on other people. I have not complained, I just asked why. But I will stop with that also so the besserwissers can have it their way. Luckily there are also serious people on this forum, who try to help
And it allows you to push configurations along with changing the DNS servers used etc… so is very useful.
I use static mappings at home and I will give one good example:
I have a laptop i take to different sites and use on their networks which use DHCP but when I get home I want this laptop to have a specific IP address to allow easy networking and port forwarding without having to reconfigure my network card to have a static IP.
Sometimes posts are read wrong and give the wrong vibe, Joe probably is a good example of this, his answers are always straight to the point with no hand holding but there is no malice in them.
This is a great forum with good contributors with more knowledge than me.
P.s. I am still learning linux and still using windows
A Besserwisser is a person who acts like they know everything, often by sharing unwanted advice or trivia. The term is German and translates to “know-it-all” in English.
It was not in that file it was in main.cf.
BUT, the question is how it ended up there. When I installed webmin, the hosts and hostname were already changed and the server rebooted
Doing a quick ctl f web browser search indicates you never told us you found it in main.cf.
How did it get there? We are back to
Your opening post doesn’t include the OS you used. Even if it did, we don’t know what is in the Contabo image provided to you. Again, if Postfix checks to see if the domain is properly configured, it may have picked it up from the DNS which is probably set by Contabo to use their servers which will have their host name. Do I know this is how Postfix works? No. I always stated it was a reasonable conjecture because a mail server must have a valid public DNS to work.
I run webmin/virtualmin on a new ubuntu server 22.04
Before I installed Virtualmin I changed hostname on it but now I see in the mail log this
Feb 4 06:00:32 server postfix/qmgr[631702]: 41B5D124505B: from=root@vmi2433889.contaboserver.net, size=703, nrcpt=1 (queue active)
Where does this come from
