1: Query IP and subnet mask when Linux automatically obtains IP
Open a command terminal and type ifconfig -a
As can be seen from the above figure: IP: 10.113.1.130, Mask: 255.255.255.0
Two: View the gateway
Type in the command terminal: route
The default line 10.113.0.254 is the default gateway
Three: View the default DNS service
Enter in the command terminal: cat /etc/resolv.conf
behind the nameserver is DNS
Four: Set a fixed IP address
In practical applications, the server generally uses a fixed IP address.
In the above example, you already know the IP, gateway, subnet mask and DNS of the machine, and now you can set your own fixed IP.
1. Enter the command terminal and enter: vi /etc/sysconfig/network-scripts/ifcfg-eth0
Note: ifcfg-eth0 is its own corresponding network card address. If there is a network card, this is the address.
2. Press i key to enter edit mode
Modify the configuration as follows:
DEVICE=eth0 BOOTPROTO=static HWADDR=00:0C:29:DF:95:82 IPV6INIT=no NM_CONTROLLED=yes ONBOOT=yes#boot start TYPE=Ethernet IPADDR=10.113.1.130#own IP address NETMASK=255.255.255.0#subnet mask GATEWAY=10.113.0.254#gateway DNS1=202.96.209.133 UUID=92405d80-c79f-4c32-b23b-098c6bb357d3
3. Exit and save. Press Esc, then enter
:wq
4. Remember to restart the network card service.
service network restart
Five: Modify whether to use the graphical interface or the text interface to boot.
Personally recommend using the text interface. There are also more text interfaces in the formal environment.
vi /etc/inittab
Enter text editing mode, press i key to enter editing mode
Edit the text as follows:
# Default runlevel. The runlevels used are: # 0 - halt (Do NOT set initdefault to this) # 1 - Single user mode # 2 - Multiuser, without NFS (The same as 3, if you do not have networking) # 3 - Full multiuser mode # 4 - unused # 5 - X11 # 6 - reboot (Do NOT set initdefault to this) # id:3:initdefault:
按Esc键,然后退出并保存
:wq