Brian is correct... check the /etc/hosts if your hostname and hostname.hostdomain is registred here. Eg. if a MTA (sendmail) don´t resolv the hostname of the host is gerated a big delay. Put the hostname in loopbak interface (127.0.0.1)... And is not in VM, in physical host the same "problem" []s ________________________________________________ Renato de Oliveira Diogo Bacharel em Ciência da Computação UNESP - Bauru LPIC1 - Linux Professional Institute Certification - Nível 1 renato.diogo at gmail.com renato.diogo at yahoo.com.br On Tue, Jun 16, 2009 at 16:03, Brian Mathis<brian.mathis at gmail.com> wrote: > On Tue, Jun 16, 2009 at 1:50 PM, Alfred von Campe<alfred at von-campe.com> 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. >> >> Alfred > > This is a classic sign of DNS query timeouts. When you are connected > to the network the system is making DNS queries which respond quickly. > When you are not connected, the host makes DNS queries and waits for > a response. The timeout is a minute or so, so you will see a long > delay in any program that tries to resolve DNS. Many programs use DNS > even if it's not entirely obvious why. > > You didn't say which virtual network this machine is connected to, but > you probably want to use the NAT network and allow the VM to receive > the DNS server configuration via DHCP. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >