port 3306 continues to close, no access to mysql -


I have a Mac Running Mavericks, which is installed from MySQL. When I try nmap localhost and I think: 

  3306 / tcp open mysql   
 Computer name: I can not find  3306 , but I'm getting:  
  
  Code> Port State Service 80 / TCP Open http 3128 / TCP Open Squid-TP8080 / TCP Open http-proxy   
 It also says that my computer name fixes some IP address . When I try to  nmap  with that code, I get the same feedback as above I want to connect to this database with Visual Studio running on my parallel VM.  
 It happened yesterday and I finally found out that Norton Anti-Virus had blocked that port, so I uninstalled Norton and restarted one of their scripts. Everything was working fine on the job, and then I came home and again, the harbor has been closed.  
 There is no firewall for my Mac or Windows (Parallel VM) machine. I can not understand why this port stops. I have no firewall installed on my home network. This port is on my home network. Has been opened in the past. I have the disadvantage to find out that this port is suddenly stopped without rebooting my computer, I originally come home, and port  3306  is now closed. Any ideas?  
 Edit: I have also tried to start  port = 3306  to add my file to my.cnf file, and it also does not solve my problem is.   
 
 
 When you run nmap against local host, it uses the IP address 127.0.0.1. When you run it against your hostname, it uses your host's 'real' IP address.  
 Obviously you have the MySQL configured to bind only on the IP address 127.0.0.1, and if you want to access MySQL from a different host, you will need to enter all the addresses To bind config need to change (even if the host is running  
 find the file  /etc/my.cnf  and see if there is a row in it like  
  bind -address = 127.0.0.1   
 If it does, remove it or remove it If there is no line restriction for 127.0.0.1 in  my.cnf , then the  bind-address = 0.0.0.0   
 You will need to get the script that starts MySQL and to check how this sets the bind address.

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