Shell Programming and Scripting

I have an issue where I am running out of ports when using RSH to start a script remotely.

I have a script that i need to run that has been pushed out to every server. I have a list of servers (hostfilelist)

Basically, I have a simple loop that will run them in paralell.

Code:

for host in `cat hostfilelist`; do
rsh $host ksh script.ksh &
done

Problem is there are like 2k servers and I am hitting a limit of 512, (assuming port range is 512-1023 for RSH based on documents i have read).

How can i get around this? I am running RHEL5 fwiw.

Maybe something like this, (not sure how the \& scape will work on your system):

Code:

 
for host in `cat hostfilelist`; do
rsh $host 'ksh script.ksh \&' &
done