Amy Lee wrote:
> Hi,
>
> I have 4 PCs in LAN, IP are 192.168.0.1~192.168.0.4, and the first machine
> is server, so I wanna use rsh to login other 3 machines. Nut I don't wanna
> type password every time.
>
> My server's OS is RHEL 3 Linux, others' is FC6.
> Which files and service should I operate?

Use ssh and login using Public Key Authentication (so your computer
shares a secret with the other machines that it wants to log into).

"man ssh" tells you how.

Robert
>
> Thank you very much~
>
> Regards,
>
> Amy Lee