Isn't this an Evil Thing To Do? What ICMP traffic is safe to block, an
what isn't?
'ping' says it only uses ICMP's 'echo' and 'echo response' datagrams, so
maybe just block these. I read somewhere that blocking ICMP 'fragmentation
needed' datagrams breaks linux's path MTU discovery.
Is it safe to block the ICMP 'time exceeded' message in order to stop
'traceroute' finding you?
Obviously I'm very confused here. Someone take pity on me?
--matt
On Tue, 21 Dec 1999, Kevin Waterson wrote:
> Steven Kerr wrote:
>
> > "you may even stop responses to ping to really be invisable."
> >
> > Pardon me for asking...
> >
> > I know it is possible, but how do you do it ?
>
> With IPchains
> have a look at http://linux.oceania.net/scripts
>
> there you will find several scripts to help
>
> Kevin
>
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