XAMPP fails to start. Another web server with SSL already running, can't stop it

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http://www.linuxquestions.org – Hi all, I'm running XAMPP while playing with DVWA. It was working very well. Then, I decided to check out Nessus and had installed it and ran that, decided I didn't need/want it. I was told to stop it by doing this Code: # /etc/init.d/nessusd stop $Shutting down Nessus : . But then, when I try to start XAMPP, Code: $ sudo /opt/lampp/lampp start [sudo] password for admin: Starting XAMPP for Linux 1.8.2-0... XAMPP: Starting Apache...fail. XAMPP:  Another web server with SSL is already running. XAMPP: Starting MySQL...ok. XAMPP: Starting ProFTPD...ok. I tried again to stop nessus, as (HowTos)