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 :: Mailing Lists

[ILUG] Re: [Q] Max number of TCP(?) packets without waiting for an ACK(?)

[ILUG] Re: [Q] Max number of TCP(?) packets without waiting for an ACK(?)

Andrew McCarthy andrewmc-ilug at celt.dias.ie
Wed Dec 17 09:46:03 GMT 2008


On Tue, Dec 16, 2008 at 06:13:23PM +0000, Gavin McCullagh wrote:
> Another large NUI college in South Dublin used to block ICMP in all its
> forms within their campus.  This was considered a security measure on the
> basis that one particularly nasty win-borne worm used to ping hosts before
> attacking them.  There was considerable wailing and gnashing of teeth from
> those who (as users) occasionally needed to debug network issues, but those
> who sat in the (metaphorical) tower could not hear.  That may have changed
> since.

No, it hasn't. You still can't debug anything network-related.

Ironically, they insist that any server you attach to the network must
respond to all pings.

Andrew



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