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To set IP address on CentOS 7, I study this page in which a ifcfg-eth0 file is created and then this command is run:

systemctl restart network

But when I run the above command, I receive this error:

Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.

When I run systemctl status network.service, I receive some errors:

network.service: control process exited, code=exited status=1

Failed to start LSB: Bring up/down networking.

Unit network.service entered failed state.

network.service failed.

Question

I assume I need to install some package. What package is needed? What's the error cause?

3 Answers 3

1

Investigating the journalctl -xe log helped me figure out the error cause.

The error was due to:

  1. Wrong DEVICE=eth0
    • Resolved by renaming DEVICE=eth0 to DEVICE=enp9s0
  2. Existence of some copied files like ifcfg-* which I created for testing
    • Resolved by deleting them
-1

You can check whether the configuration file is wrong.

It worked for me when I changed BOOTPROTO to static.

-2

maybe your port 21 was in used, you can check like this:

netstat -nalp | grep 21

tcp6 0 0 :::21 :::* LISTEN 2028/proftpd

port 21 was used by another program, stop it and try restart:

systemctl start vsftpd.service

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