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install mod_cband

The current version can set virtual hosts' and users' bandwidth quotas, maximal download speed, requests-per-second speed and the maximal number of simultaneous IP connections.

More information on mod_cband can be found at http://codee.pl/cband.html

 

In order to compile mod_cband, we must have apxs installed.

# yum install httpd-devel

 

Download and install mod_cband.

# cd /tmp

# wget http://cband.linux.pl/download/mod-cband-0.9.7.5.tgz

# tar xzvf mod-cband-0.9.7.5.tgz

# cd mod-cband-0.9.7.5

# ./configure

# make

# make install

 

This should have added the mod_cband module to /etc/httpd/conf/httpd.conf. To confirm this run:

# vi /etc/httpd/conf/httpd.conf

 

You should see something like this:

LoadModule cband_module       /usr/lib/apache/mod_cband.so

 

Restart Apache

# /etc/init.d/httpd restart

 

mod_cband is now installed.

 

To improve performance of mod_cband add the following two lines to your httpd.conf directly under where the module is listed.

 

CBandScoreFlushPeriod 1

CBandRandomPulse On

 

Now it's time to start throttling the bandwidth and limiting connections.

First lets create the score board to keep track of connections.

# mkdir /home/YourUser/domains/yourwebsite.com/public_html/scoreboard

# chown apache:apache /home/YourUser/domains/yourwebsite.com/public_html/scoreboard/

 

On DirectAdmin servers the vurtual hosts files are located at: /usr/local/directadmin/data/users/YourUser/httpd.conf

 

Edit the httpd.conf of the of the user you wish to limit the speeds or connections of.

# vi /usr/local/directadmin/data/users/YourUser/httpd.conf

 

Edit the httpd.conf to look similar to this:

<VirtualHost 111.222.333.444:80>

 

 

            ServerName www.yourwebsite.com

            ServerAlias www.yourwebsite.com yourwebsite.com

            ServerAdmin webmaster@yourwebsite.com

            DocumentRoot /home/YourUser/domains/yourwebsite.com/public_html

            CBandSpeed 10mbps 10 30

       CBandRemoteSpeed 5mbps 3 3

       CBandScoreboard /home/YourUser/domains/yourwebsite.com/public_html/scoreboard

 

  <Location /cband-status>

    SetHandler cband-status

  </Location>

  <Location /cband-status-me>

    SetHandler cband-status-me

  </Location>

 

The CBandSpeed directive limits the overall Apache performance for the www.yourwebsite.com vhost to a speed of 10mbps, max. 10 requests per second and max. 30 open connections.

The CBandRemoteSpeed is like the CBandSpeed directive, but it sets limits for any individual user (as compared to the overall settings made by CBandSpeed).

After your changes, you must restart Apache.

 

You can now view the bandwidth usage and open connections for www.yourwebsite.com by going to http://www.yourwebsite.com/cband-status

 

You can use the following units in the mod_cband directives:

Transfer speeds:

    * kbps: 1024 bits per second

    * Mbps: 1024*1024 bits per second

    * Gbps: 1024*1024*1024 bits per second

    The default is kbps.

 

Transfer quotas:

    * K: 1000 bytes

    * M: 1000*1000 bytes

    * G: 1000*1000*1000 bytes

    * Ki: 1024 bytes

    * Mi: 1024*1024 bytes

    * Gi: 1024*1024*1024 bytes

    The default is K.

 

Time periods:

    * S: seconds

    * M: minutes

    * H: hours

    * D: days

    * W: weeks

    The default is S.

تاریخ ارسال: 2013-06-09           تعداد بازدید: 1567           نویسنده: admin
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