: Disallow all user agents except one using .htaccess? I've been struggling to get this .htaccess working. The aim is to disallow all user agents besides my app. The app sends a GET request with

Posted in: #Apache #Htaccess #HttpCode500 #ModRewrite #UserAgent

I've been struggling to get this .htaccess working. The aim is to disallow all user agents besides my app. The app sends a GET request with a user agent of lets say 'AcmeUpdater'.

Whenever I try to navigate to any file in the folder, I get a 500 - Internal Server Error.
Here are the rules I'm using:

<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine on
RewriteBase /
RewriteCond %{HTTP_USER_AGENT} !^KMUpdaterClient*
RewriteRule .* - [F,L]
</IfModule>

I have updated the .htaccess file as suggested in the answer by Nick, and restarted Apache. After trying a couple of different things, it seems that just the presence of a .htaccess is causing the 500 error. I'm getting nothing in the error logs.

The .htaccess file at the document root looks like the following:

<IfModule mod_rewrite.c>
Options +FollowSymLinks
ErrorDocument 404 /index.php?error=404
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
</IfModule>

So I realised that the error logs were in chronological order rather than the reverse chronological I expected (Oops!).

The error I'm getting is: </IfModule> without matching <IfModule> section. I removed the </IfModule> and still I get that error. Ideas?

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@Angie530

Finally realised what the problem was when, after deleting the tag in both files, the error "Invalid command 'xefxbbxbf

EF BB BF = BOM

Moral of the story: Always check your encoding* and hex dump of your files when you get weird issues.

*On Notepad++ you can use the Encoding -> Encode in UTF-8 without BOM option to remove it

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: Disallow all user agents except one using .htaccess? I've been struggling to get this .htaccess working. The aim is to disallow all user agents besides my app. The app sends a GET request with

More posts by @Kristi941

: Why do differant domains have differant prices? Why are .com domains cheaper than less common domains? I was recently looking at getting a .mu domain, and was surprised that the "cheapest" price

: Cyberx86's answer worked kinda well for me, but I had to remove the proxy_pass line, get rid of a dollar sign, and add some semicolons. The addition to my config is: location ~ .(gif|jpg|png)

: How can I create a content widget generator? Sites like Buzzfeed offer widgets (Javascript, PHP, WordPress, etc.) for syndicating their content on other sites. Does anyone have any ideas on how

: Best Strategy for Exact Match Domain (EMD) Along Side Branded Domain I lucked out and managed to buy a two word .com EMD for the most important key-phrase for our b2b SaaS startup. Shutting

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