Operation and Maintenance
Linux Operation and Maintenance
Starting from the command line: Building a secure and stable Linux server environment
Starting from the command line: Building a secure and stable Linux server environment
Start from the command line: Build a secure and stable Linux server environment
With the rapid development of the Internet, Linux servers have become the first choice for many enterprises and individuals. To build a safe and stable Linux server environment, starting from the command line and configuring it step by step is a good choice.
So, let us start from scratch and build a safe and stable Linux server environment step by step.
Step one: Choose the right Linux distribution
First of all, it is very important to choose the right Linux distribution. Currently, many popular Linux distributions can be used as server operating systems, such as Ubuntu, CentOS, Debian, etc. Each distribution has its own unique features and benefits, and you can choose based on your needs.
Step 2: Install the basic system
Installing the basic Linux server system is the second step. You can use command line tools or graphical interface tools for installation. If you are familiar with the command line, it is recommended to use the command line tool. After the installation is complete, follow the prompts to perform basic settings and configuration of the system.
Step 3: Update and upgrade the system
After completing the system installation, it is recommended to update and upgrade the system immediately to obtain the latest security patches and features. Use the following commands to update and upgrade the system:
sudo apt update sudo apt upgrade
If you are using CentOS or other distributions, you can use the corresponding package management tools to update and upgrade.
Step 4: Configure the firewall
In order to protect the server from malicious attacks, it is very important to configure the firewall. The Linux server provides a firewall software by default, such as iptables, ufw, etc. You can choose a suitable firewall according to your needs and configure it accordingly.
For example, using iptables you can use the following command to configure the firewall:
sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT sudo iptables -A INPUT -j DROP
After this configuration, only port 80 and port 22 are open, and all other ports will be closed.
Step 5: Install and configure security software
Installing and configuring some security software can improve the security of the server. For example, install fail2ban to prevent brute force cracking and malicious logins, install ClamAV to detect and remove viruses, install OSSEC to monitor intrusion behavior, and so on. By carefully configuring these security software, you can better protect your server.
Step 6: Set up regular backup
Regular backup is an important measure to maintain server data security. You can use command line tools to set up regular backup tasks and store backup files in a safe place, such as cloud storage or an external hard drive.
Step 7: Strengthen account and password security
It is also very important to strengthen the security of account and password. You can increase the security of your server by using strong passwords, changing passwords regularly, and setting up multi-factor authentication. In addition, you also need to pay attention to operations such as regularly cleaning up accounts that are no longer in use and prohibiting root users from logging in remotely.
Step 8: Monitoring and logging
In order to detect potential security issues in a timely manner, monitoring and logging are essential. There are tools you can use to monitor your server's performance and security and log all important operations and events. In this way, you can detect and solve problems in time to ensure the continued stable operation of the server.
Summary:
Through the above step-by-step configuration, you can build a safe and stable Linux server environment. Of course, this is just a basic guide, and the actual configuration will need to be adjusted based on your specific needs and circumstances. At the same time, it's important to continually learn and update your knowledge, as security is an ever-changing field. I hope this article can be helpful to you, and I wish you success in building a Linux server environment!
The above is the detailed content of Starting from the command line: Building a secure and stable Linux server environment. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undresser.AI Undress
AI-powered app for creating realistic nude photos
ArtGPT
AI image generator for creative art from text prompts.
Stock Market GPT
AI powered investment research for smarter decisions
Hot Article
Popular tool
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
20516
7
13629
4
What is Binance C2C? What are the risks? Is it safe? Binance C2C Coins Buying and Selling Coins Tutorial
Mar 05, 2025 pm 04:48 PM
Binance C2C Trading Guide: Safe and convenient way to deposit and withdraw money in cryptocurrency. This article will explain the Binance C2C (CustomertoCustomer) trading model in detail, explain its security, characteristics and operation procedures, and provide graphic tutorials to help you easily master the Binance C2C deposit and withdraw money in ease. What is Binance C2C? Binance C2C is a user-to-user cryptocurrency trading service provided by the Binance platform, providing users with convenient cryptocurrency and fiat currency exchange channels. Launched in 2019, the service supports multiple cryptocurrencies and fiat currency transactions through a peer-to-peer trading model, and provides enhanced security and multiple features. Compared with traditional OTC trading, Binance C2C platform authenticates both parties to the transaction and provides complete support.
How often should you regenerate session IDs?
Apr 23, 2025 am 12:03 AM
The session ID should be regenerated regularly at login, before sensitive operations, and every 30 minutes. 1. Regenerate the session ID when logging in to prevent session fixed attacks. 2. Regenerate before sensitive operations to improve safety. 3. Regular regeneration reduces long-term utilization risks, but the user experience needs to be weighed.
How to Add Users to MySQL from the Command Line
May 07, 2025 pm 05:01 PM
ToadduserstoMySQLfromthecommandline,loginasroot,thenuseCREATEUSER'username'@'host'IDENTIFIEDBY'password';tocreateanewuser.GrantpermissionswithGRANTALLPRIVILEGESONdatabase.*TO'username'@'host';anduseFLUSHPRIVILEGES;toapplychanges.Alwaysusestrongpasswo
How to create a new, empty file from the command line?
Jun 14, 2025 am 12:18 AM
There are three ways to create empty files in the command line: First, the simplest and safest use of the touch command, which is suitable for debugging scripts or placeholder files; Second, it is quickly created through > redirection but will clear existing content, which is suitable for initializing log files; Third, use echo"> file name to create a file with an empty string, or use echo-n""> file name to avoid line breaks. These three methods have their own applicable scenarios, and choosing the right method can help you complete the task more efficiently.
Advanced CentOS System Administration: Mastering the Command Line
Apr 06, 2025 am 12:10 AM
Advanced command line management skills of CentOS include: 1. Use systemctl to manage system services, 2. Use top to monitor system resources, 3. Use yum to manage software packages, 4. Use find and xargs to batch process files, 5. Use rsync to optimize file copying. These techniques can improve productivity, solve common problems, and optimize system performance.
How does PHP handle file system operations, and what are the security considerations?
Jun 19, 2025 am 01:00 AM
PHP handles file system operations through built-in functions, but needs to pay attention to security risks. Common functions include fopen(), file_get_contents(), unlink(), etc., which are used to read, write, delete and check files; user input must be verified during operation to prevent path traversal attacks; script access to directories should be restricted through open_basedir; reasonable permissions should be set to avoid sensitive files being read and written; verification of types and renaming when uploading files; performance is recommended to use buffer reading and regular cleaning of temporary files. Following best practices can improve safety and efficiency.
One article to understand how to withdraw funds in the currency circle in the safest and most reliable way?
Jul 12, 2024 pm 04:29 PM
As a new financial field, the currency circle has many participants and large market fluctuations. Withdrawing money has always been an important topic that investors pay attention to. Even if you have been in the currency circle for many years, you will encounter some troubles, and even have your account frozen. To this end, understand how to withdraw funds in the currency circle in the safest and most reliable way? It is knowledge that investors must master. Judging from the current data analysis, if you want to withdraw money safely and reliably, investors need to choose a reliable trading platform, protect personal information, click on any links carefully, etc. Next, the editor will explain it in detail. What is the safest and most reliable way to withdraw money from the currency circle? Withdrawals from Coin Circle can improve the efficiency of withdrawals by choosing regular platforms, multiple withdrawal channels, setting safe passwords, treating information with caution, protecting personal information, and regularly reviewing account funds.
How to repair Windows 11 using command prompt
Jul 05, 2025 am 02:59 AM
How to use command prompt to repair Windows 11? 1. Enter the command prompt through the recovery environment: enter the recovery environment through USB boot or three consecutive interrupts, and then select Troubleshooting > Advanced Options > Command Prompt; 2. Use DISM to repair the system image: Run DISM/Online/Cleanup-Image/CheckHealth to check for corruption, DISM/Online/Cleanup-Image/ScanHealth scanning problem, DISM/Online/Cleanup-Image/RestoreHealth to repair the problem, and specify an external source if necessary; 3. Run SF
