


How to set up software installation on CentOS systems using a secure remote repository
How to set up software installation on CentOS systems using a secure remote repository
Overview:
In CentOS systems, installing software packages is a key operation. In order to ensure the security and stability of the software, we should use a secure remote warehouse to install and update the software. This article will introduce how to set up a secure remote warehouse in CentOS system and provide relevant code examples.
Step 1: Install and configure the yum plug-in
-
First, make sure your system has the yum plug-in installed. Use the following command to check and install:
sudo yum install yum-plugin-security
-
After installation, use the following command to open the yum configuration file:
sudo vi /etc/yum/pluginconf.d/security.conf
-
Modify the file content as follows:
[main] enabled = 1
Step 2: Set up a secure remote warehouse
-
First, create a new yum warehouse file. Create and open the file using the following command:
sudo vi /etc/yum.repos.d/security.repo
-
In the file, paste the following content:
[CentOS-Security] name=CentOS-$releasever - Security baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/updates/ enabled=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Instructions:
- Modify
$releasever
is your CentOS version number, such as 7. - Modify
$basearch
to your system architecture, such as x86_64. - Save and exit the file.
Step 3: Update the system and install software
-
First, update the list of software packages in the system using the following command:
sudo yum update
-
When installing the software package, use the following command to install it. For example, when installing nginx:
sudo yum install nginx
- yum will automatically check the security of the software package and download safe software packages from the configured secure remote repository.
-
Check the security report using the following command:
sudo yum updateinfo list security
Summary:
This article introduces how to set up a secure remote repository in a CentOS system and Relevant code examples are provided. By using a secure remote warehouse, we can ensure the security and stability of the software package and improve the reliability and security of the system.
The above is the detailed content of How to set up software installation on CentOS systems using a secure remote repository. For more information, please follow other related articles on the PHP Chinese website!

In Linux, file and directory management uses ls, cd, mkdir, rm, cp, mv commands, and permission management uses chmod, chown, and chgrp commands. 1. File and directory management commands such as ls-l list detailed information, mkdir-p recursively create directories. 2. Permission management commands such as chmod755file set file permissions, chownuserfile changes file owner, and chgrpgroupfile changes file group. These commands are based on file system structure and user and group systems, and operate and control through system calls and metadata.

MaintenanceModeinLinuxisaspecialbootenvironmentforcriticalsystemmaintenancetasks.Itallowsadministratorstoperformtaskslikeresettingpasswords,repairingfilesystems,andrecoveringfrombootfailuresinaminimalenvironment.ToenterMaintenanceMode,interrupttheboo

The core components of Linux include kernel, file system, shell, user and kernel space, device drivers, and performance optimization and best practices. 1) The kernel is the core of the system, managing hardware, memory and processes. 2) The file system organizes data and supports multiple types such as ext4, Btrfs and XFS. 3) Shell is the command center for users to interact with the system and supports scripting. 4) Separate user space from kernel space to ensure system stability. 5) The device driver connects the hardware to the operating system. 6) Performance optimization includes tuning system configuration and following best practices.

The five basic components of the Linux system are: 1. Kernel, 2. System library, 3. System utilities, 4. Graphical user interface, 5. Applications. The kernel manages hardware resources, the system library provides precompiled functions, system utilities are used for system management, the GUI provides visual interaction, and applications use these components to implement functions.

Linux maintenance mode can be entered through the GRUB menu. The specific steps are: 1) Select the kernel in the GRUB menu and press 'e' to edit, 2) Add 'single' or '1' at the end of the 'linux' line, 3) Press Ctrl X to start. Maintenance mode provides a secure environment for tasks such as system repair, password reset and system upgrade.

The steps to enter Linux recovery mode are: 1. Restart the system and press the specific key to enter the GRUB menu; 2. Select the option with (recoverymode); 3. Select the operation in the recovery mode menu, such as fsck or root. Recovery mode allows you to start the system in single-user mode, perform file system checks and repairs, edit configuration files, and other operations to help solve system problems.

The core components of Linux include the kernel, file system, shell and common tools. 1. The kernel manages hardware resources and provides basic services. 2. The file system organizes and stores data. 3. Shell is the interface for users to interact with the system. 4. Common tools help complete daily tasks.

The basic structure of Linux includes the kernel, file system, and shell. 1) Kernel management hardware resources and use uname-r to view the version. 2) The EXT4 file system supports large files and logs and is created using mkfs.ext4. 3) Shell provides command line interaction such as Bash, and lists files using ls-l.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SublimeText3 English version
Recommended: Win version, supports code prompts!

WebStorm Mac version
Useful JavaScript development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

SublimeText3 Linux new version
SublimeText3 Linux latest version