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I want apache to automatically recognize subdomains based on the filename that I have placed in /var/www/subdomains/

I'm a complete apache noob.

P.S. I'm using Ubuntu 10.10

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  • I think you need to explain what you want a bit more. I'm guessing from the question you mean you have a domain example.com and you want site1.example.com to map to /var/www/subdomains/site1/, site2.example.com to /var/www/subdomains/site2/ etc. Is that correct?
    – Smudge
    Jun 8, 2011 at 18:24
  • possible duplicate of Subdomains from folders on Apache Jun 8, 2011 at 18:25

1 Answer 1

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This can be done if you follow the instructions for Simple dynamic virtual hosts in the Apache documentation.

Follow a standard convention for your VirtualHosts, like /var/www/www.subdomain.org/docroot/ and /var/www/www.subdomain.org/cgi-bin, and then add something like the following to your HTTP configuration.

Note how the paths below use %0. This will be populated by the server name which is used in the contents of the Host: header in the HTTP request. You must use UseCanonicalName Off for this to work. Also note that if a visitors goes to 'www.example.com' 'example.com', the 'Host: ' is different, therefore '%0' is different, so you'll need symlinks or another method to tell Apache that /var/www/www.example.com/ and /var/www/example.com/ are the same thing.

# get the server name from the Host: header
UseCanonicalName Off

# this log format can be split per-virtual-host based on the first field
LogFormat "%V %h %l %u %t \"%r\" %s %b" vcommon
CustomLog logs/access_log vcommon

# include the server name in the filenames used to satisfy requests
VirtualDocumentRoot /var/www/%0/docs
VirtualScriptAlias  /var/www/%0/cgi-bin
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  • Where do I include this? Again, new to server stuff...is it httpd.conf or apache2.conf or a .htaccess file? Jun 8, 2011 at 18:52
  • @Kevin : For testing, put this in httpd.conf. Later on, you can find a more suitable location for this under the conf.d/ directory. I don't have a working Ubuntu box in front of me at the moment, but if you grep for %0 under /etc/apache2/*/*, you might find some great examples for this. Jun 8, 2011 at 18:57
  • When I try to restart apache I get Invalid command 'VirtualDocumentRoot', perhaps misspelled or defined by a module not included in the server configuration. Do I need to add a module? Jun 8, 2011 at 19:05
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    I did sudo a2enmod vhost_ailis and restart worked! Jun 8, 2011 at 19:07
  • Can I do something like subdomain.20.34.56.67? or must it be my actual named URL? Jun 8, 2011 at 19:10

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