If you look back a few messages you'll see I posted an extract from
/var/log/messages where the foreign host in question sent weird packets
to my machine.
Mar 12 03:28:47 mail portsentry: attackalert: Unknown Type: Packet
Flags: SYN: 1 FIN: 1 ACK: 0 PSH: 0 URG: 0 RST: 0 from
host:samantha.craghead.com/126.96.36.199 to TCP port: 109
Any idea what would have caused that? Especially at that time in the
morning.. nobody here.
Sascha Lucky Luck wrote:
>> Thus spoke Smelly Pooh:
> > In reply to Smelly Pooh's flatulent wordings,
> > > many port scanners by default even refuse to try and scan a host unless it
> > > can ping it first, so incoming ICMP requests might be worth dropping aswell.
> > Sorry, that should read ICMP echo requests
> Those were replies, though (looked like it, anyway). Those shouldn't be
> dropped by default, b/c this will break path MTU discovery and might lead to
> droppd/dodgy connections.
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