What is cslistener?

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http://askubuntu.com – There seems to be a process called "cslistener" on my machine that is listening on port 9000. A scan using nmap resulted in this, where is the address of my PC. Nmap scan report for Host is up (0.000013s latency). Not shown: 993 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 139/tcp open netbios-ssn 443/tcp open https 445/tcp open microsoft-ds 9000/tcp open cslistener 10000/tcp open snet-sensor-mgmt What's going on here? I'm on ubuntu 12.04. (HowTos)