[clug] Re: Determining availability of a remote machine
Jepri
jepri at webone.com.au
Fri Apr 4 00:16:34 EST 2003
On 2003.04.03 19:38, Kim Holburn wrote:
> >This is already part of the ping standard. Try looking in your
> /etc/services file. It's almost always commented out.
>
> Exactly what is it you're talking about? What is part of the ping
> standard? /etc/services has udp and tcp ports. What has that to do
> with ping?
These lines have everything to do with ping:
echo 7/tcp
echo 7/udp
There is a good explanation of what these do, and what they should do
at:
http://perlmonks.org/index.pl?node_id=42739
This is documented in RFC 862, although I understand that it is no
longer trendy to go to the source when arguing about network
protocols. I constantly have to restrain the other sysadmin at work
from just making up crap about network protocols and palming it off as
'knowledge'.
More information about the linux
mailing list