1, ifconfig command to temporarily assign an IP address
2, setup tool permanently configured IP address
3, modify the network configuration file
4, a graphical interface to configure the IP address
ifconfig command to temporarily assign an IP address
The main role is to view the network information, you can temporarily set the IP address of the network card
The first line of output information:
First, identify the MAC address of the Ethernet card and the current computer
The second line information:
Identifies the IP address, subnet mask and gateway
The third line information:
Marked IPv6 addresses
The fourth line information:
Some parameter describes the information card
The fifth line information:
Statistical accepted the number of data packets,
The sixth line information:
Send statistics of how many packets
The total size and the total size of the received packet following the packet transmitted
The last line:
The current memory card in which the address
In Windows, a network adapter is allowed to add multiple IP addresses
Linux can also be
But when bind multiple IP addresses of the same card is shared total bandwidth.
ifconfig eth0 192.168.0.200 netmask 255.255.255.0 # temporarily set eth0 NIC IP address and subnet mask
You can also configure a virtual network card
ifconfig eth0:0 192.168.1.200
At this time, the two addresses are normal use (NIC binding a plurality of IP addresses)
Close method:
ifconfig eth0:0 down
To get him active again, straight up on it, do not have to configure.
setup tool (Red Hat proprietary graphical tool)
The case of a minimal installation (Minimal) that do not have this tool, you can choose Basic server in the installation of the system.
Linux network configuration file
1, NIC information file
Then the following is
IP addresses
Subnet Mask
Gateway
DNS
as well as
IPV6NIT = no # IPv6 does not start
USERCTL = no # do not allow non-root users to control this card.
When used to configure other IP network card configuration file, copy the file directly to configure on the line.
2, hostname file
vi /etc/sysconfig/network
NIC
CPU name
In addition to Windows, there are IP host name can not be the same, but Linux can.
在修改后重启整个系统才会显示修改后的主机名。（直接改文件是永久生效）
hostname [主机名] #临时生效，重新登录后前面的提示符才会改变
3、DNS配置文件
这是所有的Linux的配置文件的路径，需要牢记。