Folks,
I successfully run LTSP in four schools, and attempt to do
remote maintenance of these.
I have the following :-
* Wizzy server, 256M RAM, running the following :-
- DHCP, tftp
- NFS - both for client machines (/opt/ltsp/i386) and
for user home dirs (/var/home).
No thin client swap (they have 32M RAM min.)
- named
- openLDAP - authentication
- exim and courier-imap for mail
- WWW server, for webmail, wwwoffle as caching www server
* Two thin client servers, running all applications, gdm,
nfs-mounting /home from wizzy server.
* 100BaseT switched network - 40 or so clients.
I have successfully modified the rc.local script to allow
redundant font-servers (so you can specify multiple fs's)
and to ping the thin client servers for one that is up
and then do an X -indirect to that one.
I am particularly happy at being able to dump X support
from the wizzy server.
(small) patch attached.
The busybox ping does not have a -w option, but I use -c 1
and it seems to work OK.
I have a problem - I hope you can help - unrelated (I think)
to the above. Occasionally my wizzy server crashes. I have
observed, upon reboot, that it hangs just after bringing up
the network interface.
* If I reset the Thin Client servers, it is still hung.
* If I turn off the switches, it continues booting as if
nothing has happened.
I surmise this is because the thin clients are flooding
the network (panicing) trying to remount /opt/ltsp/i386,
and the wizzy server is flooded with interrupts.
I cannot check the Ethernet card brand now, but it is either an
RTL8139 or a Davicom DM9102 (NE2000 clone ??) card.
Is it possible that this card (or its drivers) is crummy, and
buying another would improve things ?
Best one to buy ?
Has anyone seen this before ?
Cheers, Andy! http://www.wizzy.org.za/ (bit dated)
--- /opt/ltsp/i386/etc/rc.local 2002-07-21 04:09:33.000000000 +0200
+++ /tmp/rc.local 2003-06-10 16:30:57.000000000 +0200
@@ -388,6 +388,15 @@
XDM_SERVER=`get_cfg XDM_SERVER ${DEFAULT_SERVER}`
+ for i in $XDM_SERVER
+ do
+ if ping -c 1 $i
+ then
+ XDM_SERVER=$i
+ break
+ fi
+ done
+
case "${XSERVER}" in
XF86_*) XBINARY="${XSERVER}"
@@ -423,9 +432,9 @@
fi
if [ -w /proc/progress ]; then
- echo "/usr/X11R6/bin/${XBINARY} ${XOPTS} ${ACC_CTRL} -query ${XDM_SERVER}
>/dev/tty3 2>&1" >/tmp/start_ws
+ echo "/usr/X11R6/bin/${XBINARY} ${XOPTS} ${ACC_CTRL} -indirect ${XDM_SERVER}
>/dev/tty3 2>&1" >/tmp/start_ws
else
- echo "/usr/X11R6/bin/${XBINARY} ${XOPTS} ${ACC_CTRL} -query ${XDM_SERVER}"
>/tmp/start_ws
+ echo "/usr/X11R6/bin/${XBINARY} ${XOPTS} ${ACC_CTRL} -indirect ${XDM_SERVER}"
>/tmp/start_ws
fi
chmod 0755 /tmp/start_ws
--- /opt/ltsp/i386/etc/rc.setupx 2001-12-01 02:45:11.000000000 +0200
+++ /tmp/rc.setupx 2003-06-10 16:28:38.000000000 +0200
@@ -81,9 +81,16 @@
if [ "${USE_XFS}" = "Y" ]; then
XFS_SERVER=`get_cfg XFS_SERVER ${DEFAULT_SERVER}`
- cat <<-EOF >>${XF86CONFIG}
+cat <<-EOF >>${XF86CONFIG}
Section "Files"
- FontPath "tcp/${XFS_SERVER}:7100"
+EOF
+echo -n FontPath \" >>${XF86CONFIG}
+for f in $XFS_SERVER
+do
+ echo -n tcp/${f}:7100, >>${XF86CONFIG}
+done
+echo \" >>${XF86CONFIG}
+cat <<-EOF >>${XF86CONFIG}
EndSection
EOF
else
