I recently created a new Centos VM. When it booted, I noticed it did not have a working ethernet connection. So, I started playing with things, and got it working. Here are my notes:
To view connections
nmcli c
To bring up the connection was simple:
nmcli c up eth0
To make it persist across boots required the autoconnect value:
nmcli c mod eth0 connection.autoconnect yes
This last one reflects the ONBOOT value in the file /etc/sysconfig/network-scripts/ifcfg-eth0
Setting it changed ONBOOT from no to yes.
Rebooting the machine and ip addr shows the connection up.
Isn’t better using systemd’s .network files?
Thanks!
nmcli standardizes it across distros, so this would work for both Centos7 and Fedora 2*
fwiw the order of the commands is reversed on centos7.5
$ nmcli c up eth0
Thanks for the correction. I’ll need to confirm when next I bring up a C7.5 system. But since that is the right order on RHEL, I think you are correct.
Hi,
I installed CentOS 7 32 bit on my HP DV8000 laptop. Wireless connection is working fine but wired connection is not activated. In NetworkManager app even wired tab is disabled.
# nmcli d
DEVICE TYPE STATE CONNECTION
wlp6s0 wifi connected HKNS-WIRELESS-2
lo loopback unmanaged —
No wired device is visible.
# lspci |grep -i net
06:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
08:08.0 Ethernet controller: Intel Corporation PRO/100 VE Network Connection (rev 01)
# lspci -nn -k |fgrep -i ether
08:08.0 Ethernet controller [0200]: Intel Corporation PRO/100 VE Network Connection [8086:1092] (rev 01)
How can I install the driver and activate the wired network adapter? Please help. Thanks in advance!
I am stuck in a silly thing but not sure how to solve it. To enable Automarically Connect checkbox, I am clicking in ENTER button and I am not getting X . How can I enable it?
click space
Bro, outstanding after trying everything this thing finally worked for me.
Thanks a lot.