subdomain with www is not working !!!!

[mungujakisa]

Yeah I have seen that file. Please Give me step by step method if it works for you

Note: Be careful while editing the vhosts file, this can cause apache to stop working if edited wrongly! Also I'm on Ubuntu, I hope it works on CentOS
You can do this by performing the following steps:

1. Open /etc/sentora/configs/apache/httpd-vhosts.conf using your favourite editor (I prefer nano). Scroll down till you find the record for your subdomain, which will look like #DOMAIN: sub.domain.com 
   
2. Add a new line under the "ServerName" line
   
   Code:

   ServerAlias www.sub.domain.com
   
   
   
3. save the file and exit the editor.
   
4. Go to your host DNS editor (not the one of Sentora) and add an A record. If your subdomain is sub.domain.com, then the A record should be "sub" (leave quotes out) and point to your public IP address. Your DNS should already have a www entry for your main domain, so you can leave it as it is or add it if missing.
   
5. Restart Apache. For me since I'm on ubuntu, I use
   
   Code:

   service apache2 restart
   
   
   
6. Test and see if it works. If it doesn't, you may need to clear your cache; for me I tested on another browser instead of clearing my cache and losing temporary files, it works perfectly.
   

Hope this is clear enough; cheers!