[SOLVED] Centos7, Apache, subdomains and .conf-file configuration

Hi all.

system used:

 uname -a
Linux aaa.bbb 3.10.0-862.el7.x86_64 #1 SMP Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

I installed a server(I'm in a hurry again) about 1,5 weeks ago using CentOS 7 and after about 5 minutes of googling I found out the how .conf-files should be of a subdomain.
It all worked OK but later I did the thing a Linux Admin SHOULD NOT DO!!!!
Using runninglevel 3(as always) I changed to a directory, as I thought, but I wrote a little wrong so I happened to be in root-dir and there I did 'rm -rf'. I saw what happened so I CTRL-C it but as I knew, that system was gone.

Now I reinstalled it again but THIS time I just can not find the apache-subdomain-conf-file-example-thing and I just can't get it to work.
I've been doing this for 5 days now and still nothing works.

'DocumentRoot' is set to the directory of the main domain name.

As I can't recall at all how the conf-file looked like I gotta ask;

YES, I googled my a$$ of for this, this 2nd time and nothing works. Also tried different browsers on different devices and still nothing, so no cash problems

-?- Do I have to have the subdomain-directives in the same .conf-file as the 'main' domain as some google-result says? (tried that and it didn't work, if I did it correctly)

I probably have missed showing you info about the system but I don't know what to show.
It's a "normal" CentOS 7 installation and its' versions all the latest applications.

I'm about to give up even though I already got it working like 1 week ago.

Now I reinstalled it again but THIS time I just can not find the apache-subdomain-conf-file-example-thing and I just can't get it to work. I've been doing this for 5 days now and still nothing works. 'DocumentRoot' is set to the directory of the main domain name. <-snip-> -?- Do I have to have the subdomain-directives in the same .conf-file as the 'main' domain as some google-result says? (tried that and it didn't work, if I did it correctly)

To configure a vhost (or subdomain as you say it) for apache in Centos, read this howto (esp. #6).

If /etc/httpd/conf.d/vhost.conf does not exist, you can create it using the example in the link above as a template.
FYI apache reads all .conf files under /etc/httpd/conf.d at startup.

Well it's not a vhost I'm after. I want to add subdomains under domainname.com like

aaa.domainname.com, bbb.domainname.com, ccc.domainname.com etc
All other things with "normal" domainnames work perfectly just this thing with subdomains that won't work.
I own a real domainname and I want to add more other sites to it but by using the above subdomains.

Originally Posted by Basher52 Well it's not a vhost I'm after. I want to add subdomains under domainname.com like aaa.domainname.com, bbb.domainname.com, ccc.domainname.com etc All other things with "normal" domainnames work perfectly just this thing with subdomains that won't work. I own a real domainname and I want to add more other sites to it but by using the above subdomains.

Any subdomain is actually a vhost, so you should follow the same setup.
Or else, post the config that is not working and the error you get so we could help you better on that.

Well ain't that typical today it worked and I've been trying this for almost a week now.
I tried different types that I googled up and this is supposed to work and it does, like all subdomains in the same conf-file as where the main domain was, which ALSO works now.
Just can't figure out why it didn't work the other days. As I said, I flushed all browsers and tried on different PCs and mobile devices.

Ah well, it works so I'm glad

This is what I have now

<VirtualHost *:80>
    ServerName sub1.domain.com
    DocumentRoot /webdata1/sub1
    ErrorLog /var/log/httpd/sub1.domain.com-error.log
    CustomLog /var/log/httpd/sub1.domain.com-access.log combined
</VirtualHost>

I got four of these all in separate files under .../conf.d/
All of them works as subdomain under domain.com, like:
http://domain.com show one site, the main one.
and these;
http://dom1.domain.com
http://dom2.domain.com
http://dom3.domain.com
http://dom4.domain.com
all shows different sites

Marking this post solved
and thanks