[CentOS] The most weird thing i've ever seen (networking)

John Newbigin jnewbigin at ict.swin.edu.au
Mon Mar 5 00:38:05 UTC 2007

If you use DHCP and are connected to a cisco switch, sometimes the link 
won't come up (if you are using the default settings).

This may not be your specific problem but in general I recommend that 
you don't use DHCP on servers for this reason.


Mário Gamito wrote:

> Hi,
> I've installed a mail server using CentOS 4.4
> Now, if i reboot the server remotely by ssh, when it cames up, i have no 
> network.
> The interface is up and everything looks pretty fine.
> But i can't even ping other machines in the same intranet.
> If i reboot it locally at the console, the network cames just fine.
> Never seen nothing like this.
> The mind boggles :(
> Any ideas ?
> Warm Regards,
> Mário Gamito
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John Newbigin
Computer Systems Officer
Faculty of Information and Communication Technologies
Swinburne University of Technology
Melbourne, Australia

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