[clug] Re: Determining availability of a remote machine
jepri at webone.com.au
Fri Apr 4 22:04:22 EST 2003
On 2003.04.04 18:53, Michael Still wrote:
> On Fri, 4 Apr 2003, Jepri wrote:
> "The echo service sits on port 7, and replies back with
> you said, just like a senile grandmother" 
My grandmother just says 'oh, really?' all the time :)
The original discussion was a request for a way to test servers,
without using ICMP (which you gave a good summary of). Under those
circumstances I thought that pointing out a user level, non ICMP
alternative was a good idea. I was completely wrong about it being
part of a ping standard though, it's just that I've heard (and used)
the phrase 'tcp ping' enough times for it too seep into my idea of
A reasonable firewall administrator should let port 7 requests go out,
but I'd be blocking it incoming.
Intruigingly enough, it is enabled by default on my Debian box.
> I can only imagine that this is a deliberate attempt to offend Kim,
> who is
> regularly helpful on this mailling list. Would you care to rephrase
I do hope Kim didn't take that as a personal attack, because it
wasn't. Kim was first in with the best answer(as I'm sure s/he knows),
and I do appreciate Kim's input on the mailing list. I'm currently
looking up the programs mentioned in that answer, and they look cool
(and don't use ICMP).
It was just a frustrated comment that had little to do with the people
in the discussion.
> Yours in a ongoing effort to learn more about everything,
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