[ubuntu-uk] Checking to make sure you are safe...port checking etc.

[John Matthews]

Even though we get told most of the time Linux is safe, the more tis 
used, the more viruses will get written for it. I noticed somebody was 
talking about checking ports to see if they are visible to the outside. 
How do you do that? Is there any software, or can it be done via the 
Terminal. Can somebody help?

John.

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Ubuntu User #30817