Management of Linux operating system (System software installation and simple management) five

graphical interface management and software installation (RHEL7)

First, login interface into the system

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This interface, we see a user called "student", this user in our system is a normal user. Users in the system are divided into 1. Superuser 2. Normal User 3. System user.

First of all, the super user, this user in our system is the highest authority, the system after the installation of the default super user name "root" This user in our system is only the only one, his uid is "0" (here UID refers to the user identification number, The management of subsequent users and groups will be explained in detail). Of course, he is also the most dangerous user, if someone else gets the user's account name and password can do to our server DD (often referred to as the disk format) operation. So generally not by the enterprise or computer room easy to use the root user, of course, we still need to learn the root user, so we want to use the root user login mode:

① Click Not listed, pop up the following dialog to enter the user name "root" login

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② before entering the password for root settings click Login (for root password settings please refer to http://hblbk.blog.51cto.com/7645149/1609939)

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③ Login successfully entered the graphical interface for the first time

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Login successful

Second, we log in to the operating system, we should first understand the arrangement of its interface, here I simply to tell you.

GUI Graphical desktop environment
Application Menu
Chinese environment settings
Connecting to an FTP server
Background picture settings
Network configuration
Create a new directory, file
Password modification

GUI graphical desktop environment,

Application Menu

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At the top left of the desktop you will see this button, where all the system comes with or post-install Open button, our commonly used tools can be found here (the system comes with),

The system is installed by default Firefox browser, this browser to recommend you, on my computer and mobile phone I have installed, whether it is security, operability, or fluency is relatively good.

There is a terminal here, this is the tool we enter the command in the system, remember his location, there are some other tools I do not introduce here, I used to tell you.

In addition, there is a setup in the System tool, which is equivalent to the Control Panel in the Windows system. such as

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In the setup, we can meet some basic settings, such as desktop background, system language, printer, mouse settings, network, resolution and desktop background.

Chinese environment settings

In our system, according to our needs for the system's language settings, generally we in the process of learning to suggest that you try to use the English language, for the Chinese version is not recommended to use, the main reason is because the English is the original.

Start modifying

Open the settings selected area and language

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Select the language click, Note that our system in the virtual machine may be relatively slow, we wait patiently.

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Select the language you want to change and click Finish, note that the language changes to complete the input source is also changed to the appropriate language input, click the plus sign to add, and then select.

Note: After modifying the language, the system does not automatically switch to restart the system, you can open the terminal, enter the command "reboot" or "Shutdown-r"

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Connecting to an FTP server

After the successful installation of our system, we need to configure the network to connect with the outside world, the configuration on the virtual machine will be more troublesome, for the real computer on the system as long as it is plugged in a network cable (LAN or WAN, and there is a DHCP server), Reboot the network card system will automatically get the IP address (the server's IP address must be fixed, try to configure the IP itself). We want to access the server must first configure the network, the network without any problems.

First of all, the FTP server, (the following excerpt from the Baidu Encyclopedia)

FTP is the abbreviation for file Transfer Protocol (document Transfer Protocol), and Chinese is called "Interfax protocol". Used for two-way transmission of control files on the Internet. At the same time, it is also an application (application). There are different FTP applications based on different operating systems, and all of these applications follow the same protocol to transfer files. In the use of FTP, users often encounter two concepts: "Download" (Download) and "Upload" (Upload). A "Download" file is a copy of a file from a remote host to its own computer; the "upload" file is a copy of the file from your computer to a remote host. In the Internet language, users can upload (download) files to (from) a remote host through a client program.

① Configure the network, open the settings, select the network, click on the lower right corner of the "pinion" (note: This cable for the virtual machine's virtual network card, he needs to bridge to our real network card)

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Select IPV4 to change DHCP to manual, enter an IP address for communication within the intranet or WAN in the address. Click Apply

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If the IP of this interface is inconsistent with the IP settings. Then click the open position two times (reboot) will appear, no configuration error.

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Here are the settings for virtual machine networking for how virtual machines are bridged to a real network card.

First, verify that the mode of the virtual network card is bridge mode

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Click the Edit button on the virtual Machine Software toolbar to find the Virtual network editor

Select Bridge to network card for the name of your real network card, you can use the ping command in Windows to detect click Apps

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Bridge completion (TEST)

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② connecting to an FTP server

To be Continued ...

This article is from the "Huangbaoliang" blog, make sure to keep this source http://hblbk.blog.51cto.com/7645149/1659771

Management of Linux operating system (System software installation and simple management) five