在使用add命令时无法实现增加节点

lsh

问题在使用add命令时无法实现增加节点。
　　问题如下：
　　 pvm> add linux3
　　 add linux3
　　 0 successful
　　 HOST DTID
　　 linux3 Cann't start pvmd
　　
　　 AUTO-Diagnosing failed hosts....
　　 linux3.....
　　 verifying local path to "rsh"......
　　 Rsh found in /usr/bin/rsh/ -O.K.
　　 Testing Rsh /Rhosts Access to Host "linux3"......
　　
　　 Rsh/Rhosts Access FALLED-"linux3:Connection refused"
　　 Make sure host linux3 is up and connected to network and check its DNS/IP address.
　　 Also verify that linux1 is allowed
　　 rsh assess on linux3
　　 Add this line to the $HOME/.hosts on linux3:
　　 linux root
　　 pvm>
　　一台名字叫linux1的做主机，不能增加linux3的为其节点