I would like to check the name of network interface on my Linux operating system. How do I get the detailed information of NIC under CentOS 7/6.5 or RHEL 7/6.5 linux? How To get the name of network interface on your linux system? How to get the MAC address of network interface? How to check the network interface manufacture information? How to get the speed of network interface? this post will guide you how to get different properties of network interface on your centos system.
CentOS/RHEL Check The Name Of Network Interface
To get all of network interface name on your linux system, you need to run the following comand, type:
ifconfig | cut -c1-7| sort -u| awk -F : '{print $1}'
outputs:
[root@devops ~]# ifconfig | cut -c1-7| sort -u| awk -F : '{print $1}'
enp0s3
lo
CentOS/RHEL Check Network interface speed
Issue the following command to get the speed of network interface on your linux systmem,type:
ethtool enp0s3 | grep Speed
outputs:
[root@devops ~]# ethtool enp0s3 | grep Speed Speed: 1000Mb/s
CentOS/RHEL Get MAC Address OF A NetWork interface Card
To get the MAC address of a given network interface card, issue the following command:
ethtool -P <network interface name> ethtool -P enp0s3
outputs:
[root@devops ~]# ethtool -P enp0s3 Permanent address: 08:00:27:ea:92:ea
CentOS/RHEL Get IP Address OF One Network interface
To Get the ip address of one network interface, just issue one of below commands:
ifconfig <network interface name> ip link show <network interface name> ifconfig enp0s3
OR
ip addr show enp0s3 | grep 'inet '
outputs:
[root@devops ~]# ip addr show enp0s3 | grep 'inet ' inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3 [root@devops ~]# ifconfig enp0s3 enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.0.2.15 netmask 255.255.255.0 broadcast 10.0.2.255 inet6 fe80::a00:27ff:feea:92ea prefixlen 64 scopeid 0x20<link> ether 08:00:27:ea:92:ea txqueuelen 1000 (Ethernet) RX packets 44 bytes 5064 (4.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 105 bytes 10955 (10.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
CentOs/RHEL Check Detailed Information Of Network interface Driver
To get the driver information for network interface, you still need to use ethtool utility, issue the following command:
ethtool -i <network interface name> ethtool -i enp0s3
outputs:
[root@devops ~]# ethtool -i enp0s3 driver: e1000 version: 7.3.21-k8-NAPI firmware-version: bus-info: 0000:00:03.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: no
CentOS/RHEL Get Manufacture information Of Network Interface
To get the manufacture information for a given network interface card, issue the following command:
lspci -v | grep Ether
outputs:
[root@devops ~]# lspci -v | grep Ether 00:03.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)