Jyh-Shyong Ho <c00jsh00@nchc.org.tw> writes:
Hi,
I updated the OS of my Opteron cluster from SuSE9.1 to SuSE9.3 ( not New Installation), the installation went smoothly, however, I found that not all original system configurations were kept:
1. I am not able to use rsh among all nodes in the cluster.
2. The NAT server on the master node is no longer working, I am not able to reach computers outside from client nodes. Here are the original configuration:
On the master node (140.110.17.10), I included the following llines in file /etc/init.d/boot.local
modprobe ip_tables modprobe ip_nat_ftp modprobe ip_nat_irc modprobe ip_conntrack modprobe ip_conntrack_ftp modprobe ip_conntrack_irc iptables -F; iptables -t nat -F iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to 140.110.17.10 echo 1 > /proc/sys/net/ipv4/ip_forward
And defined the gateway to 192.168.3.100 (the internal IP address of the master node) on all client nodes. On SuSE 9.1, this configuartion works normally.
And it should work on 9.3 as well. But perhaps the above is done too early?
3. In directory /etc/init.d/rc3.d, nfs always executes earlier than ypbind, regardless the assigned numbers, e.g.,
We execute them in parallel. If you need a dependency from nfs on ypbind, add it to the file or execute them serially (there's an option in /etc/sysconfig for this)
[...] During the system boot, my intention is to start ypbind before nfs, but SuSE9.3 always execute nfs before ypbind.
4. If install SuSE9.3 as New Installation, I am not able to enable xinetd with YAST2, many network services (e.g. telnet server) are not available.
Is the telnetd package installed?
I realize that SuSE9.3 has changed many system default configurations for security reason, but some of these changes caused above problems.
Only a few options have been changed.
Perhaps someone can give me some hints so I can restore my original environment under SuSE9.3? Thanks.
Andreas -- Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj SUSE Linux Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126