BackOrifice on Linux?

[Kent West <westk@acu.edu>]

I just ran the command "sudo nmap  -sT -sU localhost" which listed the 
following:

. . .

12345/tcp  open        NetBus                 
12346/tcp  open        NetBus                 
27665/tcp  open        Trinoo_Master          
31335/udp  open        Trinoo_Register        
31337/tcp  open        Elite                  
31337/udp  open        BackOrifice            
32770/udp  open        sometimes-rpc4         

. . .



Should I be concerned, or is this maybe part of portsentry or something 
similar?

Sweating just a bit,
Kent