Apache Dynamic Virtual Hosts with mod_rewrite Problem

PhragMunkee · n00b Joined: 01 Feb 2005 Posts: 6

I am setting up a new web server using Apache 1.3.33 using dynamic virtual hosts. Here is my VirtualHost configuration directive:

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

Try this:

RewriteCond %{HTTP_HOST} .*\.?domain\.tld
RewriteCond %{HTTP_HOST} !www\.domain\.tld
# RewriteRule /(.*) http://www.domain.tld/$1 [L]
Edit --> RewriteRule /(.*) http://www.domain.tld/$1 [R,L]

Alex!!!
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PhragMunkee · n00b Joined: 01 Feb 2005 Posts: 6

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

Perhaps I'm not getting your point. I thought you want to rewrite any hostname of the form

host.domain.ltd

-- where host ist variable or NULL (in that case the first dot is not required) -- to

www.domain.ltd

and preserve anything after the hostname. That's exactly what my rewrite rule does... (or at least should, I didn't test it...)

If you want to serve a number of domains do it this way

PhragMunkee · n00b Joined: 01 Feb 2005 Posts: 6

It's definitely a tricky one to explain.

Basically, if a host.domain.tld is requested, it shouldn't be rewritten. However, if the host part is missing, it should be rewritten to www.domain.tld. So, it just needs to be rewritten if there is no host and left alone if there is.

And to make matters worse, I can't match it specifically on domain.tld (or anything static). It needs to be matched on any domain at any top-level domain.

Maybe something like

If http://*.*/* (no host) then rewrite to http://www.*.*/*

But if it has http://mail.*.*/* or http://whateveryoucandreamup.*.*/* then it doesn't get rewritten.

Does that help clarify a little?

Thanks!!!

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

If you serve only top level domains this should do the trick:

PhragMunkee · n00b Joined: 01 Feb 2005 Posts: 6

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

Will you please provide me with some more detail. I can't help you much when you simply state it's not working...
What URL do you request and what does apache actually make out of it. Have a look at the access_log and the error_log. Make sure there is some content that can be served... I don't know how you setup your DocumentRoot etc.
To get some more insight you should activate the RewriteLog and watch how the URLs actually get rewritten.

Alex!!!
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Pingu1979 · n00b Joined: 08 Mar 2005 Posts: 4

I think maybe I can explain it a bit better as I want to do exactly the same thing...

Say you host 4 domains...

example1.com
example2.org
example3.net
example4.co.uk

What PhragMunkee wants to happen is that if someone puts http://example2.org into the address bar of their browser it rewrites the URL to http://www.example2.org ... however if someone puts in http://www.example1.com or http://mail.example3.net then it won't rewrite the URL at all...

It would also need to be able to deal with http://example4.co.uk (needs to be rewritten) and http://www.example4.co.uk or http://mail.example4.co.uk (shouldn't be rewritten)

I've tried to get this to work but I'm **** at regex!

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

Hm,

I understood it exactly the way you explained it. To put in other words: any hostname that consists of exactly 2 parts get rewritten, anything else not, right!?
So, take a look at the regexp above

Pingu1979 · n00b Joined: 08 Mar 2005 Posts: 4

I did think of counting the dots but it wouldn't work for country tld's like .co.uk as they would have 2 dots without the host and 3 dots with...

I'm beginning to think that it's just not possible to do it this way.....

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

MrBlc · n00b Joined: 16 Mar 2004 Posts: 30

I have a similiar issue...

i want to have certain vhosts rewritten from http://subdomain.domain.tld to https://samesubdomain.domain.tld

i'm no wiz in regexp either... :roll:

but this is what i have managed to boil together so far, although it's not working..

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

If I get it right you simply want to make sure that any http request is redirected to the same URL but via https.
This is accomplished as follows:

- In the http virtual (host.domain.tld):
RedirectMatch permanent (.*) https://host.domain.tld($1)

Hth, Alex!!!
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MrBlc · n00b Joined: 16 Mar 2004 Posts: 30

Thanks for the solution..

i'm starting to see that there are a multitude of ways to perform this task..

i ended up with a simpler one though..

in the vhost config, i wrote:
redirect / https://host.domain.tld

it seemed to work as well, but i appreciate your answer.. makes me realize there's a LOT of ways to do this..

-blc

tuxmin · l33t Joined: 24 Apr 2004 Posts: 838 Location: Heidelberg

The difference between your and mine solution is that mine preserves the part behind the hostname, e.g.

MrBlc · n00b Joined: 16 Mar 2004 Posts: 30

interesting...

thanks for clarifying that for me.

-blc

guigouz · n00b Joined: 22 Apr 2004 Posts: 33

Hi,
First of all, your post enlightened me on how to accomplish this virtual host thing, so thanks!

Here's the regexp that will work for you