[nycbug-talk] OT: Apache/mod_rewrite question

Kevin Reiter tux at penguinnetwerx.net
Mon Jan 29 00:36:33 EST 2007

Kevin Reiter wrote:
> Kevin Reiter wrote:
>> Jonathan Stewart wrote:
>>> Kevin Reiter wrote:
>>>> All,
>>>> I've been trying to figure this out for a few hours now, and I can't 
>>>> quite get it working, and I *know* someone in here knows how to do 
>>>> this...
>>>> I'm trying to force all traffic to an Apache server (on my laptop) to 
>>>> use SSL.  The laptop is on a dynamic IP with no static domain, so I 
>>>> can't force http://machine.domain.tld to https://machine.domain.tld, 
>>>> and since the IP changes depending on where I am, I can't use that 
>>>> for a rewrite, either.
>>>> Do any of you Apache gurus know of a way to do this using an 
>>>> .htaccess file or via a simple edit to httpd.conf?  I've been 
>>>> checking Google for awhile, but everything I've come across doesn't 
>>>> quite do the trick.
>>> Not exactly what your asking about but have you considered using a 
>>> dynamic DNS service?  I use No-IP () and have been very happy with 
>>> them.  They even manually setup IPv6 records for me even though they 
>>> are not technically supported.  Although I am paying for a domain name 
>>> and dns they provide free sub-domains as well.  If thats not an option 
>>> I'll see what I can do about a rewrite rule for you.
>>> Jonathan
>> This is for a traveling laptop that I use both at home and at client 
>> sites, and as a test machine at my new job, so I don't always have the 
>> same IP, which is how I typically access the server.
>> I should've mentioned that I know about zero when it comes to writing 
>> rewrite rules (this would be a first).
>> In this case, a dynamic DNS service would do nothing for me (I've had a 
>> paid account with FreeDNS[1] for years now.)
>> Basically, I'm looking to force the use of SSL on my webserver 
>> (apache+mod_ssl-1.3.37+2.8.28) when the IP and domain are always changing.
>> I recall seeing something about {SERVER_ADDR} as a variable, which would 
>> be exactly what I'm looking for, but I don't have a clue outside of that 
>> what to write in the .htaccess file.
> Helps when I include the link..
> [1] http://freedns.afraid.org/


Here's what I have for my root .htaccess file:

Options +FollowSymlinks
RewriteEngine On
RewriteCond %{SERVER_PORT} !443
RewriteRule ^(.*) https://%{SERVER_NAME}/$1 [L,R]

..and this is what I see in the error log after receiving a 500:
[Mon Jan 29 00:34:18 2007] [alert] [client] 
/usr/local/www/data/.htaccess: RewriteEngine not allowed here

Any ideas?

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