Re: NMAP Concurrent Scans

[Tim <tim-pentest () sentinelchicken org>]

> I was wondering whether running SYN, FIN, XMAS, NULL
> and ACK scans in parallel on a target generate false
> results. Since same client IP is  asking for opening &
> closing a connection on target machine will it not
>  render some ports open and other closed in the
> report?

Assuming nmap is using random source ports (which it does by default),
even if you're scanning the same port, it's relatively unlikely the
4-tuple (source ip, dest ip, source port, dest port) will be identical.
Remember, this 4-tuple is what uniquely indentifies a connection.

HTH,
tim

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