# Check status of eth0
# Check Ethernet driver
lspci | grep Ethernet
# Check Ethernet kernel message
dmesg | grep eth0
# Use ethtool to check Ethernet device
ethtool eth0
# Show feature of Ethernet device
ethtool -k eth0
# Show statictis of Ethernet device
ethtook -S eth0
# Force 1000 Mbps and full duplex on eth0
ethtool -s eth0 speed 1000 duplex full autoneg off
(CentOS / RHEL)
To make the changes permanent, edit /etc/sysconfig/network-scripts/ifcfg-eth0
ETHTOOL_OPTS="speed 1000 duplex full autoneg off"
***Reference: ***
Last Update: 2024-11-11 03:33:30 Source File