Re: [tlug] Ping vs www server

["Josh Glover" <jmglov@example.com>]

On 18/04/2008, SL Baur <steve@example.com> wrote:

> On 4/17/08, Josh Glover <jmglov@example.com> wrote:
>
>  > Yes, I do. I consider turning off ICMP a good tradeoff,
>
> It used to be that that was fairly stupid practice as it hamstrung the higher
>  level protocols - there's a lot more to ICMP than ECHO, or at least there
>  used to be.

Looking down the list of ICMP message types on p71 of TCP/IPI:VI[1], I
see very little that is used by modern routing protocols.

>  It also used to be the case that running an open email relay
>  was considered a friendly thing to do.  Times change :-(.

Indeed.

Cheers,
Josh

[1] http://www.amazon.com/TCP-Illustrated-Protocols-Addison-Wesley-Professional/dp/0201633469