mod_rewrite - A few answers.

Ok, im quite intrigued as to how to redirect a subdomain.domain.com to a secure (SSL) connection, eg. https://domain.com

So, i had a look into mod_rewrite thinking this is for me.
I've read through quite a few of the posts here and have a learnt a lot just by looking.
But to be honest, i havent a clue what i might be looking for to redirect to an SSL connection.

Is there a different way to write these conditions down for the mod_rewrite?

Theres also a few other things that ideally i would like to be explained to me

What do $l and also $2 do?

I think that should do me for the moment.

Thanks to all who respond

David

i recommend reading http://httpd.apache.org/docs/misc/rewriteguide.html

and some articles about regexps (also posts in this forums about regexps.) $1 and $2 are back-references. they refer to the parts of your regexp that you put in brackets

From http://subdomain.domain.com to https://domain.com?

You will need to give us more details. Like under what condition should a request of http://subdomain.domain.com be redirected to https://domain.com.

Further, domain.com is not a FQDN, it should not be configured with SSL in the first place.

Thank you both for your answers.

freebsd: ok, i have a control panel in operation on one of my domains. To get to this you need to type in https://myhostdomain.com:8443

This is obviously a secure connection.
I would ideally like to somehow enable people to just type in lets say http://panel.myhostdomain.com and be redirected.

I was having a look in the Apache manual (http://httpd.apache.org/docs/misc/rewriteguide.html).
It seemed to say (to me anyway) that if i had access to the DNS, which i do, i could add a DNS A record and then use the following:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.[^.]+\.host\.com$
RewriteRule ^(.+) %{HTTP_HOST}$1 [C]
RewriteRule ^www\.([^.]+)\.host\.com(.*) /home/$1$2

Obviously this would direct www.panel.host.com to www.host.com/panel

Could this sort of way be doctored or adapted to suit my needs or am i totally getting the wrong end of the stick!?

Thanks again,

David

>> just type in lets say http://panel.myhostdomain.com and be redirected.

So the condition is whenever there is a request to panel.myhostdomain.com. Then try this:

RewriteEngine on
RewriteRule ^(.*) https://myhostdomain.com:8443$1 [R,L]

Place this within <VirtualHost> of panel.myhostdomain.com.

>> Place this within <VirtualHost> of panel.myhostdomain.com.

Is that going to be within the httpd.conf file?
If so, i dont have direct access to this.
I only have the ability to add the different DNS types through a control panel that i access.

Any more suggestions or am i interprutting this wrong also!?

David

Then put those in .htaccess in your docroot.

One last question:

If i placed just:
RewriteEngine on
RewriteRule ^(.*) https://myhostdomain.com:8443$1 [R,L]

In a .htaccess file surely that will look for any subdomain @ myhostdomain.com and then redirect?

Or is this just me being stupid.
Actually thinking about it now, would i have to add in the DNS A type and then this .htaccess file would look to that?

*confused*

Thanks again,

David

>> will look for any subdomain @ myhostdomain.com and then redirect?

That's why you need to put those into the appropriate .htaccess, the docroot of panel.myhostdomain.com specifically.

>> would i have to add in the DNS A type

Whenever you configure vhost, that ServerName must be able to resolve to an IP. That said, you can't blindly create whatever.myhostdomain.com when it's not resolvable.

Right, yes, i think i know what you saying now

I shall give that a go once my domain name is fully resolved.

Thanks again for your assistance, most helpful

David

>> I shall give that a go once my domain name is fully resolved

Yes. And when it comes to mod_rewrite with HTTP_HOST, that HTTP_HOST must be DNS resolvable, else mod_rewrite can't do rewriting to the URI part or whatever. Resolving a FQDN to its IP is a DNS requirement for Apache.