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@xxxxxxxxx
renato.diogo@xxxxxxxxxxxx
On Tue, Jun 16, 2009 at 16:03, Brian Mathis<brian.mathis@xxxxxxxxx> wrote:
> On Tue, Jun 16, 2009 at 1:50 PM, Alfred von Campe<alfred@xxxxxxxxxxxxx> 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.
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>
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