An article introducing the basic knowledge of Oracle Linux

Oracle Linux is a Linux-based operating system, which is independently developed by Oracle. It is similar to RedHat Enterprise Linux (RHEL) and uses common kernel files and underlying services. In this article, we will introduce you to the basic knowledge of Oracle Linux, including installation, configuration and management.

Installing Oracle Linux
Before installing Oracle Linux, you need to obtain the Oracle Linux image file and related installation programs. Please obtain the corresponding software packages from Oracle's official website, including "oraclelinux-7.0-x86_64-dvd.iso" and "oraclelinux-7.0-x86_64-VirtualBox.box".

Generally, we can install Oracle Linux through the following two methods:

1. DVD-based installation method: use "oraclelinux-7.0-x86_64-dvd.iso" to create a Bootable DVD for installation.
2. Virtual machine-based installation method: First, create a new virtual machine in the virtual machine and use the Oracle Linux operating system file "oraclelinux-7.0-x86_64-VirtualBox.box" as a virtual hard disk. After that, we can start and install Oracle Linux through the virtual machine's console.

It should be noted that before installing Oracle Linux, we need to do some preparatory work, including hardware preparation and software environment preparation. For specific preparation work, please refer to the documents provided by Oracle's official website.

Configuring Oracle Linux
After installing Oracle Linux, we need to configure it to meet our actual needs. The following are some common configuration operations:

1. Set the host name of the system: You can set the host name of the system by modifying the "/etc/hostname" file, which makes it easier for us to manage and identify the system.
2. Configure the network: You can find the network configuration files in the "/etc/sysconfig/network-scripts/" directory and configure the system's network environment by modifying these files.
3. Install and configure SSH: SSH is a very common remote management method. Through SSH, we can access the system and manage it from anywhere. You can install the SSH service by running the "yum install sshd" command. After the installation is complete, you need to perform some configuration operations.

Manage Oracle Linux
After we complete the above operations, we can start to manage the Oracle Linux system. The following are some common management tips:

1. Use yum to install and manage software packages: Yum is a very powerful and convenient software package management tool, which can help us quickly install and manage various software Bag. For example, you can use the "yum install package-name" command to install a software package, and you can use the "yum remove package-name" command to uninstall a software package.
2. Use file system and disk management tools: You can use various file system and disk management tools to format, mount, unmount disks and other operations. Disk partitioning tools like diskpart can also help you perform more sophisticated disk management and repair or adjust disk partitioning and other issues.
3. Start and shut down services: You can use the systemctl command to manage the startup and shutdown of system services. For example, the "systemctl start service-name" command can start a service, the "systemctl halt service-name" command can shut down a service, etc.

Summary
In this article, we mainly introduce how to install, configure and manage the Oracle Linux operating system. Although this operating system is very similar to RHEL, it also has some special features and advantages. I hope this article can help you better understand and master the use of Oracle Linux, and improve your Linux system management capabilities.

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