Perl and SSH hanging

Webmonkey

Hey,

Right I got a perl script that runs with a specific perl installation. This script must call another script using another perl version to I have something like:

	my @cmd =  qw(  );

	@cmd = qx{C:/perl2/bin/perl.exe Script.pl $host);

	return join('', @cmd);

Script.pl SSH's into a range of IP addresses but on some IP's it hangs as the server doesn't respond. Problem is, it never times out and holds up the whole script from running the rest of the IP addresses.

I tried the Perl Alarm function but this doesn't seem to time out either. The script just hangs.

This is a cron script so I can't afford it to hang, plus all IP's OS's are changing constantly so the problem hops from IP to IP so filtering out IP isn't a problem.

I hope I made sense here but has anyone any ideas?

Thanks,

Cantab.

Why not use threads?

Webmonkey

Problem is I must wait for the script to run to capture the output of it? - If I use threads will I still end up locking up things? -

Creamy Goodness

could you possibly ping the host contained in $host first to make sure it's up, then if you get a positive response back preceed with the ssh connection?

Webmonkey

Exactly what I am doing already - problem is I believe the SSH service is down on the remote host or something. Damn annoying