Stewart Stremler wrote:
..
But I can ping AND ssh between all the other machines and from gypsy to
all the other machines.
FROM TO PING SSH
linus linus Y Y
linus hendriena Y Y
linus gypsy Y N
hendriena linus Y Y
hendriena hendriena Y Y
hendriena gypsy Y N
gypsy linus Y Y
gypsy hendriena Y Y
gypsy gypsy Y Y
And the error is "No route to host".
I assume that the last-3 postulated lines are only from memory, since
you cannot get into gypsy, right?
Somebody asked whether you could nmap gypsy (eg from linus, run nmap
gypsy) -- did you do that, and did port 22 show up?
If you have nc (netcat), here's a useful little script for checking
whether ports are open on some destination. I call it portlook.sh, and
put it in /usr/local/bin (chmod +x).
= = =
#!/bin/sh
#TODO: add -q (quiet) switch,
# maybe -v (verbose) instead, or, in addition
function usage {
PGM=${0##*/}
cat <<END_USAGE
Usage: $PGM url [port]
a url is required; port defaults to 80 (http)
port may also be a service name such as http, ftp
examples:
$PGM yahoo.com
$PGM www.yahoo.com 80
END_USAGE
exit 91
}
which nc &>/dev/null || { echo "required nc program seems missing";
exit 92; }
[ -n "$1" ] || usage
URL=$1
PORT=${2:-"80"}
echo checking for connectivity to "$URL" port "$PORT" ..
nc -zw3 "$URL" "$PORT"
RC=$?
[ $RC -eq 0 ] && echo YES || echo nope
exit $RC
= = =
--
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