[mistwang]

When you install LiteSpeed, make sure you let LiteSpeed run as the same user as that of Apache.
Then use our "Use Apache Configuration feature"
http://www.litespeedtech.com/docs/we...loadApacheConf

You can use the "port offset" to try LiteSpeed along side with Apache, make sure NOT to use the same port 81 that LSWS is using.

You don't need to do anything else, all domains registered under Cpanel shoud work properly.

For anti-DoS feature please read the "Howto" section in doucment comes with the server package.