On Mon, Jun 05, 2000 at 12:46:21PM +1000, Todd Black wrote:
>
> Hello
>
> Can anyone tell me what UDP port 9 does? I keep getting portsentry alerts
> (included below) from an internal machine trying to connect to it.
>
> My etc/services file has it as...
>
> discard 9/udp sink null
>
> .. but I haven't been able to work out what it means.
It's the network equivelant of the bit bucket. It's useful for testing
tcp or udp network stacks, but not much else.
I believe there were some network devices (routers) which had an
exploitable DOS bug on that port, but that doesn't mean the person
connecting to yours has malicious intent.
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Steve Borho Voice: 314-615-6365
Member of Technical Staff
Celox Networking Inc
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