[CentOS] Slow CentOS VM when running off the network

Phil Schaffner Philip.R.Schaffner at NASA.gov
Tue Jun 16 18:01:19 UTC 2009

Alfred von Campe wrote:
> I have a CentOS 5.3 VM running under VMware on a WIndows XP laptop.   
> Everything works fine when connected to the network.  However,  
> removed from the network, most everything in the CentOS VM takes  
> minutes to complete.  For instance, starting a new Terminal window  
> takes over 3 minutes.  I did an strace, and there are a couple of  
> long waits when trying to open a socket (/tmp/.ICE-unix/XXXXX for  
> instance).
> The host and the VM can ping each other fine, but any access to the  
> VM (either external or from within) eventually succeeds, but it takes  
> a long time.  First, I thought I'd reduce the default socket timeout  
> (which I believe is set to around 90 seconds), but I can't find where  
> to do that on a system wide level.  But I really need to figure out  
> what is causing the problem in the first place.  I'm assuming the  
> network is somehow misconfigured, but I don't know how.

You could do "service network stop" on the CentOS VM when not on the 
network, or if you need networking between the VM and the hosts, 
configure for hostonly networking.


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