Sub domains problem

Forgive me for no copy and paste but I;m not feeling well. Search for previous submains. It’s a three line fix in htaccess as well as marking the url as being unusable in the Site -> options page/

Go to Super Admin -> Options and look for the banned site names list. put the pre-exsiting subdomains in there.

Do we not have to do the htacess fix then?

Dunno. Figured I;d give at least that half of the answer. for some, that has fixed it.

I’ve done instructions in this topic:
https://mu.www.ads-software.com/forums/topic/681

i.e putting these three lines in public_html/.htaccess and public_html/wiki/.htaccess:

RewriteCond %{HTTP_HOST} wiki.mydomain.org
RewriteCond %{REQUEST_URI} !wiki/
RewriteRule ^(.*)$ wiki/$1 [L]

but nothing differently happens ans still when I go to wiki.mydomain.org, it redirects to mydomain.org. What’s the problem? (i’ve added wiki to banned list).

Do you still have the wildcard record on the server and in your DNS? ??

Yes, my problem somehow has been solved.
I’ve added the wildcard record, added “wiki” to the banned list, deleted the old subdomain and created a new one, but I didn’t put these lines in .htaccess:
RewriteCond %{HTTP_HOST} wiki.mydomain.org
RewriteCond %{REQUEST_URI} !wiki/
RewriteRule ^(.*)$ wiki/$1 [L]

I don’t know exactly how this problem solved (or does it exist in the first place!?), maybe the support from my host have done something or maybe just deleting and recreating the subdomain was the solution.

Now I have a weird problem. My problem did fix at the first by deleting the subdomain (i.e wiki.mydomain.org) and recreating it. The problem now is it works fine for some days (say 4, 5 days) and then it’ll redirects to main domain saying that this subdomain is banned from register (I added wiki to the banned site names’ list). What is the problem and is that a problem with my host’s settings?

I even added these three lines in .htaccess:
RewriteCond %{HTTP_HOST} wiki.mydomain.org
RewriteCond %{REQUEST_URI} !wiki/
RewriteRule ^(.*)$ wiki/$1 [L]

Yeah, it’s your host.

Another thing that I’ve discovered is that after said time (3 or 4 days), subdomain turns to a sub-directory. What could be the problem?

My problem solved permanently by simply doing this:

Adding these three lines ABOVE the wordpress htaccess settings:
RewriteCond %{HTTP_HOST} wiki.mydomain.com
RewriteCond %{REQUEST_URI} !wiki/
RewriteRule ^(.*)$ wiki/$1 [L]

(of course below these:
RewriteEngine On
RewriteBase /
)

By saying wordpress htaccess settings, I mean:
# BEGIN WordPress
RewriteRule ^index\.php$ – [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ – [L]
RewriteRule . index.php [L]

# END WordPress