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Chapter 2: Deploying Torque (Open PBS)Deploying RSHBy default PBS will want to use the rsh and rcp tools to copy around input and output files, even if jobs are only running on this single node "cluster".
So the first step is to get rsh
and similar tools installed. They most likely will not have
been installed since to some extent they are a security risk,
but for the purpose of this tutorial there is nothing to worry
about.
As the user root, begin by making sure that xinetd is installed: [root@nodeB data]# rpm -qa|grep xinetdxinetd-2.3.13-6 Also make sure that it is configured to start up at boottime: /sbin/chkconfig --list | grep xinetdxinetd 0:off 1:off 2:off 3:on 4:on 5:on 6:off xinetd based services: If xinetd is not available it can be installed by doing: yum install xinetd Next install the two necessary rsh packages: yum install rsh-server By default the rsh and rlogin services will not be enabled. To enable them edit the files /etc/xinetd.d/rsh and change disable to 'no'. Then do: /etc/init.d/xinetd restart to restart xinetd (or 'start' if it is not running). Next we have to configure the machine to allow access via rsh and rlogin from only itself. To do this edit the file /etc/hosts.equiv and add only a single line with the IP address for nodeb and make sure the IP address was entered correctly with the following command. Note that this file may not yet exist or simply be an empty file. [root@nodeB xinetd.d]# cat /etc/hosts.equiv192.168.31.40 Next test to make sure that rsh works for user 'jane': [jane@nodeB ~]$ /usr/bin/rsh nodeb /usr/bin/whoamijane |
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