Following are the step to install mod_bandwidth for apache.

1. Login to your server via SSH as root.

2. Type: mkdir /root/mod_bw

3. Type: cd /root/mod_bw

4. Type: wget ftp://ftp.cohprog.com/pub/apache/module/...andwidth.c

5. Type:

6. Type: mkdir /usr/local/apache/bw_limit

7. Type: mkdir /usr/local/apache/bw_limit/link

8. Type: mkdir /usr/local/apache/bw_limit/master

9. Type: pico -w /etc/httpd/conf/httpd.conf

10. Locate the following Line:

11. Before the above line add this:

12. Now locate this line: AddModule mod_env.c

13. Before the above line add this:

14. Now locate this line: # Document types.

15. Before the above line add this:

16. To enable mod_bandwidth on a virtual host locate the virtual host entry for the specified domain/acount you wish to limit. Just before the line add the following:

The 512 can be replaced with whatever rate you wish to limit the acount too.

17. Save the file and exit.
CTRL-X then Y then enter.

18. Type: service httpd restart

19. Type: cd /usr/sbin

20. Type: wget ftp://ftp.cohprog.com/pub/apache/module/cleanlink.pl

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What is cleanlink?
Cleanlink is a deamon that is used to clean links created by mod_bandwidth when they aren't removed properly by the server. (When a httpd process doesn't terminate the usual way.)

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21. Type: chmod 755 cleanlink.pl

22. Type: pico -w cleanlink.pl

23. Change $LINKDIR to the following:
$LINKDIR="/usr/local/apache/bw_limit/link";

24. Save the file and exit.
CTRL-X then Y then enter.

25. Type: perl cleanlink.pl

26. Type: pico -w /etc/rc.d/rc.local

27. Scroll down to the very end of the file and add the following:
# The following line Launches CleanLink for Mod_Bandwidth
perl /usr/sbin/cleanlink.pl

28. Save the file and exit.
CTRL-X then Y then enter.

mod_bandwidth has many options. If you wish to modify mod_bandwidth and enable more options please visit the documentation available by the programmer here: http://www.cohprog.com/v3/bandwidth/doc-en.html