How to run a job in a new machine ?

Charley,

What do you mean by "run a job"? Your question is very vague - you can launch remote jobs using ipcBeginProcess, but you might be talking about ADE L, ADE XL, PVS - I've no idea?

Regards,

Andrew.

You can't. It only works if you can "rsh" without a password, or with some setup (look for cdsRemote.scr in the docs) you can use ssh (also without a password).

Otherwise you'd have to (say) write an expect script which launched the rsh and provided the password. Then you can ipcBeginProcess or system() this expect script. Neither rsh or ssh provide the ability to pass the password on the command line (it's bad practice anyway), although there is something called sshpass that can do it for ssh (again, not recommended). Passing passwords on the command line is a gaping security hole as people doing a "ps" on the machine can then see the password.

Regards,

Andrew.

Andrew,

Thank you for help very much.

Charley

Andrew,

I type in ciw:    ipcBeginProcess("uname -a" "newhost") ,  

It shows  "connect to address  xxx.xxx.xxx.xxx  port  xxx: Connection refused  , trying normal rsh ("/usr/bin/rsh")

But i can rsh  newhost &  in newhost , execute  "uname -a" , is ok.

How to do  it ?

Thank you,

Charley

Charley,

First of all, if you just do "rsh newhost" with no additional arguments, it actually does an rlogin, so that's a different protocol. If you instead do "rsh newhost uname -a" in a terminal window, what does that do? Does it ask for a password? Does it purely give the output you expect or something else too (maybe you can post what it does)?

Is the "shell" service enabled on the remote machine? You can look in /etc/xinetd.d/rsh to see if it's enabled or not - and if it is enabled, does it require a password? This can be enabled (i.e. disable the need for a password) using the .rhosts file in your home directory.

Regards,

Andrew.

Andrew,

if i currently in a oldhost ,(in xterm ) rsh newhost , it does not need password.  It can rsh , then uname -a , it print ....

But in ciw : ipcBeginProcess("uname -a" "newhost")  , It does not wok.

Thank you,

Charley

Hi Charley,

As I said before, if you just do "rsh newhost" it uses the "login" service. If you do "rsh newhost uname -a" then that uses the "shell" service. It's not clear to me whether you tried the "rsh newhost name -a" or not.

Given that it's saying connection refused from the ipcBeginProcess call, I suspect that you didn't check that?

Also, on your machine, what does "which rsh" return?

Regards,

Andrew.