What to do with multiple domain names pointing to the same domain name

About multiple domains pointing to the same domain name
Similar input kaixin.com auto jump to Renren.com
Options +followsymlinks
Rewriteengine on
Rewritecond $!^ (index\.php|images|style|js|system| Scripts|img|php|robots\.txt)
Rewritecond%{http_host} ^example.com$ [NC]
Rewriterule ^ (. *) $ http://www.123.com/$1 [r=301,l]
Rewritecond%{http_host} ^example.net [NC]
Rewriterule ^ (. *) $ http://www.123.com/$1 [r=301,l]
Rewriterule ^ (. *) $ index.php/$1 [L]

Above this code want to input example.com and example.net time automatically jump to 123.com, ask what is the problem? The CI framework is used

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Master quick to answer, I also want to know.
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You're looking for a domain name supplier to map it to you.

Don't be behind closed doors!
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There's a lot of code I can't read.
Can you solve that?

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301 Jump.

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