求教pvm问题,谢!............急!!!!

jdc

系统redhat8.0下使用pvm,网络都已设定,三台机子(lxy122,lxy123,lxy124)可以相互登陆
在 lxy123 上运行pvm显示:
pvm>; add lxy124
0 successful
HOST DTID
lxy124 Master Host IP Address is Loopback! (See Readme)
pvm>;

在 lxy122 上:
[zhao@lxy122 zhao]$ pvm
pvmd already running.
pvm>; add lxy122
add lxy122
0 successful
HOST DTID
lxy122 No such host
pvm>; add lxy122
add lxy122
0 successful
HOST DTID
lxy122 Can't start pvmd

Auto-Diagnosing Failed Hosts...
lxy122...
Verifying Local Path to "rsh"...
Rsh found in /usr/bin/rsh - O.K.
Testing Rsh/Rhosts Access to Host "lxy122"...

Rsh/Rhosts Access FAILED - "lxy122: Connection refused"
Make sure host lxy122 is up and connected to
a network and check its DNS / IP address.
Also verify that lxy122 is allowed
rsh access on lxy122
Add this line to $HOME/.rhosts on lxy122:
lxy122 zhao

执行pvm>;add lxy124出现同样错误提示.

现在是不清楚$HOME/.rhosts文件的位置?