nc missing option -z

[James Hogarth]

>
> My point being, grepping for "Host is up" doesn't fill the bill.  You're
> saying what I said....just differently.
>
> I still prefer tcping since there is no need to grep or awk anything.  Or
> worry about text being changed in a later release.  Just rely on exit
> status.
>
>
>
Ah I agree on tcping being more elegant there - and there's potential
security arguments to be had surrounding nmap on user systems if they don't
actually need it for a real purpose ;)

I suspect we both wrote messages the same time surrounding 'host is up'
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