A little something I noticed
2007-12-25 7:15:00
on my Suns, I found a quirk I want to share.
In our Sun-installed /etc/rc.local, there were the
lines:
ifconfig ie0 'hostname' -trailers up netmask +
ifconfig le0 'hostname' -trailers up netmask +
ifconfig ec0 'hostname' -trailers up netmask +
Once I had the resolver in, these lines would hang, because
there's no such machine as "hostname."
So I corrected the quotes to be `hostname` instead.
This worked great for the server, except for a Sun Micro quirk.
The lines, which since installed on these machines never worked,
suddenly did, and reset the broadcast address to xxx.yyy.zzz.0
instead of the standard xxx.yyy.zzz.255
This caused 2 major problems. Firstly, in.routed failed to see
all the RIP packets from our router, and so all access to the
outside world disappeared. Secondly, when booting a YP client,
the server wouldn't see the broadcasts and so would never reply,
and the client wouldn't boot on "server not responding for domain."
I've simply commented those ifconfig lines out, and use in /etc/rc.boot
(I always define SUBNET_MASK and BROADCAST_ADDRESS on these Suns)
if [ "$SUBNET_MASK" ];
then
ifconfig ec0 $hostname -trailers up netmask $SUBNET_MASK broadcast $BROADCAST_ADDRESS
ifconfig ie0 $hostname -trailers up netmask $SUBNET_MASK broadcast $BROADCAST_ADDRESS
ifconfig le0 $hostname -trailers up netmask $SUBNET_MASK broadcast $BROADCAST_ADDRESS
else
ifconfig ec0 $hostname -trailers up
ifconfig ie0 $hostname -trailers up
ifconfig le0 $hostname -trailers up
fi
Good luck!
Michael
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