Here my config to pass to my Atlassian Jira, that runs on the server, port 8080


<VirtualHost *:80>
        ServerAdmin bnp@mos-eisley.dk
        ServerName jira.mos-eisley.dk
        ServerAlias jira
        ProxyPass / http://jira.mos-eisley.dk:8080/
        ProxyPassReverse / http://jira.mos-eisley.dk:8080/

        <Proxy *>
Order Allow,Deny
Allow from all
Deny from none
</Proxy>

</VirtualHost>