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Jun 12, 2015 at 9:23 comment added mveroone Does your system have 3 actual NICs ?
Mar 27, 2015 at 1:57 comment added Jose Raul Barreras You should check whether the operating system recognizes the NICs: ip link show
Jan 21, 2015 at 2:19 history tweeted twitter.com/#!/StackUnix/status/557724110365925376
Jan 20, 2015 at 23:56 history migrated from serverfault.com (revisions)
Jan 20, 2015 at 15:13 comment added Tero Kilkanen What is the output of ifconfig -a? Please add the output to the question.
Jan 20, 2015 at 13:41 comment added user2994590 @ETL I think it's a server, is there any command to check it?
Jan 20, 2015 at 12:24 comment added user2994590 I edited my post above to include the result of ifup.
Jan 20, 2015 at 10:25 answer added peterh timeline score: 1
Jan 20, 2015 at 8:26 comment added etagenklo why ifdown? The interface is already down. To get it up, you should use ifup.
Jan 20, 2015 at 4:07 comment added ETL Restart your networking and check your logs. Post the data from syslog and any other relevant logs. Is that Ubuntu SERVER or Desktop?
Jan 20, 2015 at 3:39 comment added user2994590 yes, I ran the command "sudo /etc/init.d/networking restart"
Jan 20, 2015 at 3:19 comment added EEAA Did you restart networking after making the changes to /etc/network/interfaces?
Jan 20, 2015 at 3:15 history asked user2994590 CC BY-SA 3.0