On restart server Ethernet went down saying not configured!

Posted by Sumant on Ask Ubuntu See other posts from Ask Ubuntu or by Sumant
Published on 2012-03-16T05:31:56Z Indexed on 2012/06/27 9:23 UTC
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Filed under:

11.10

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networking

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network-manager

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ethernet

i justy have configured my dhcp server with static ip. after configuration dhcp server & routers were working fine. but after restarting server network connectivity went off. there are two lan cards but none of them is up.i tried setting up manually ip address again but it remains same. when i executed sudo /etc/init.d/networking restart i got this message

* Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces
* Reconfiguring network interfaces...                                          
/bin/sh: cannot open /etc/iptables_rules: No such file
Failed to bring up eth0.

i have configured my server according to this

What is it the problem with ubuntu 11.10 or some configuration error. i am not getting it please help me.

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