Linux Learning (a): Linux change IP Address command _ Change dns_ change default gateway _ Change Subnet Mask _ host Name

How to use commands to change the IP, DNS, subnet mask of Linux, and add a Linux virtual machine on the virtual machine (Vitrualbox);

Installation method: Http://pan.baidu.com/s/1sjJPhP7

After installation, go to the Linux desktop, a desktop like this:

Press CTRL+ALT+F2 to enter the command line window, then log in and enter it after the login is successful:

VI  /ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETHX

Opens the Settings window, by default, you have only one network card, so you can, if more than one NIC network card may be divided 0, 1 is:

VI  /ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETHX0VI  /etc/sysconfig/network-scripts/ifcfg-ethx1

If it is two network cards, then separate settings on the line;

Open a file that shows this:

Just set the parameters inside the line, such as the note:

Press the "Insert" key on the keyboard to enter the change; When all is configured, press ESC and ENTER: WQ three letters: write Save and exit;

Execute the command again.

VI  /ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETHX

You can see that our changes have been saved.

Then set the virtual Virturalbox-host-only network of the machine, right-click the network in the lower right corner, open the Network Center, you will see this:

Settings, Properties-"ip4-" setting

Here the IP address is preferably the virtual machine inside the gateway set;

After setting up, let's try it and see if we can ping it through:

Can ping the pass, then we set his hostname:

Here, basically the virtual machine system can be used, we can use Remote Tools to connect, we use putty this tool: Putty Chinese version of the download

Then is login, login successful, we enter the command: vi/etc/hosts

Enter the settings and press the "insert" key to set the format of the IP hostname as:

After the change, press ESC, enter: Wq to save and exit, but also to change another place, command: vi/etc/sysconfig/network

Set the host name:

The right side of the equals sign is the hostname you want to set, then press "ESC" and enter: Wq exit;

After exiting does not take effect, enter the command hostname REDHAT1 Press ENTER, and enter Su-can be temporarily changed, as follows:

But it's only temporary, and if you want to change it forever, you need to restart Linux.

Linux Learning (a): Linux change IP Address command _ Change dns_ change default gateway _ Change Subnet Mask _ host Name