Configure the IP address of RedHat

IP address and subnet mask:
Edit/etc/sysconfig/network-script/ifcfg-eth0
Device = eth0
Bootproto = static --- static or dynamic
Broadcast = 192.168.1.255
Ipaddr = 192.168.1.35 --- IP Address
Netmask = 255.255.255.0 --- Subnet Mask
Network = 192.168.1.0 --- network ID
Onboot = Yes

Gateway:
Edit/etc/sysconfig/Network
Networking = Yes
Hostname = vmlinux --- Host Name
Gateway = 192.168.1.2 --- Gateway

DNS:
Edit/etc/resolv. conf
Nameserver 61.147.37.1
Nameserver 61.177.7.1
Note: The above IP addresses must be changed to the IP address corresponding to your network configuration. Note the case before "=.

Change the MAC address in RedHat Linux
1. First, you must disable the NIC device. Otherwise, the system is reported to be busy and cannot be changed.
Command:/sbin/ifconfig eth0 down
2. Modify the MAC address.
Command:/sbin/ifconfig eth0 HW ether 00 aabbccddee
3. Enable Nic again
Command:/sbin/ifconfig eth0 up
The MAC address of the NIC is changed.

Another method is to modify the configuration file ifcfg-ethx of the NIC and add a similar format MAC address: hwaddr = 00: AA: BB: CC: DD: EE.