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What is the easy way to limit the download speed on apache host?

I'm trying something and I need to download a file with low speed from my website.(like 10KBps). Is there any easy way to set that speed limiter on server or host for only a specific directory?

Solution

  • Use the module mod_ratelimit which is included in httpd package.
    Here is an implementation on CentOS 7:

    1. Enable the mod_ratelimit module:

      vi /etc/httpd/conf.modules.d/00-base.conf

      uncomment line 72: 

      LoadModule ratelimit_module modules/mod_ratelimit.so

    2. Create a config file for mod_ratelimit: 

      vi /etc/httpd/conf.d/ratelimit.conf

      then put this content in: 

      #limit bandwidth as 500KB/sec under the [apache_DocumentRoot_directory]/specific_directory
<IfModule mod_ratelimit.c>
        <Location /specific_directory>
            SetOutputFilter RATE_LIMIT
            SetEnv rate-limit 500
        </Location>
</IfModule>

    3. Restart your httpd service using: 

      systemctl restart httpd.service