Redirect users from specific url via htaccess

Question

Is it possible to redirect a user who is coming from a specific url to another url via htaccess or script? (htaccess prefered)

eg

user comes from www.domain-a.com/sample-site/ to www.domain-b.net/sample-site2/ and should be redirect to www.domain-c.org/sample3/ All other user shouldn't be redirected only the users from www.domain-a.com/sample-site/

Domain-a and domain-b are wordpress sites.

Thanks for the help

Answer 1

Assuming you have control over domain-b.net:

RewriteEngine on    
#If user clicks a link on a page sample-site of domain A
#which you may or may not control
  RewriteCond %{HTTP_REFERER} ^http://(www.)?domain-a\.com/sample-site/? [NC]
#which aims at domain B, which you control, which runs this .htaccess file
  RewriteCond %{HTTP_HOST} ^www.domain-b.net$
#requesting page sample-site2
  RewriteCond %{REQUEST_URI}  ^/?sample-site2/?
#then rewrite to domain C page sample3
  RewriteRule ^ http://www.domain-c.org/sample3/ [R,L]