Bring up the Eth0 port of an Unix machine

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http://www.unix.com – I brought down the Eth0 of an Unix machine using the below command. Code: ifconfig eth0 down When i tried the brought back the eth0 using similar command, the system is expecting a reboot to bring it back. Code: ifconfig eth0 up I also tried restart the network using below command but it got struck in bringing up eth0. Code: service network start service network restart But things goes fine when i reboot the unix machine. The Eth0 gets active an enables me to establish a telnet session on the respective machine. Is it possible to shut and bring back eth0 without rebooting a (HowTos)