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How to configure your CentOS system to protect against malware and viruses
How to configure your CentOS system to protect against malware and viruses
Jul 05, 2023 am 10:25 AM
How to configure CentOS system to prevent the intrusion of malware and viruses
Introduction:
In today's digital era, computers and the Internet have become an indispensable part of people's daily lives. However, with the popularization of the Internet and the continuous advancement of computer technology, network security problems have become increasingly serious. The intrusion of malware and viruses poses a great threat to the security of our personal information and the stability of our computer systems. In order to better protect our computer systems from malware and viruses, this article will introduce how to configure the CentOS system to improve system security.
Part 1: Update the system and install basic tools
- Update the system
When using the CentOS system, we must first ensure that our system is up to date and has the latest installed security patches. You can use the following command to update the system:
sudo yum update
- Install basic tools
In order to better manage our system and configure security, we need to install some basic tools. We can install these tools using the following command:
sudo yum install -y net-tools wget curl vim
Part 2: Configuring the Firewall
The firewall is the first line of defense to protect our computer system. The built-in firewall tool of CentOS system is firewalld. We can use the following commands to configure the firewall:
- Start the firewall and set it to start at boot:
sudo systemctl start firewalld sudo systemctl enable firewalld
- View the firewall status:
sudo firewall-cmd --state
- Add firewall rules to allow only necessary network ports to pass:
sudo firewall-cmd --permanent --add-port=22/tcp # 允許SSH通過 sudo firewall-cmd --permanent --add-port=80/tcp # 允許HTTP通過 sudo firewall-cmd --reload # 重新加載防火墻配置
Part 3: Install and configure anti-virus software
Anti-virus software protects our computer systems Another important component. We can choose different antivirus software to provide real-time protection and virus scanning for our CentOS system. Here we take ClamAV as an example to introduce.
- Install ClamAV:
sudo yum install -y epel-release sudo yum install -y clamav clamav-update clamav-scanner-systemd clamav-server-systemd
- Update virus database and configure regular scans:
sudo freshclam # 更新病毒庫 sudo systemctl start clamav-freshclam # 啟動(dòng)定期更新病毒庫任務(wù) sudo systemctl enable clamav-freshclam # 設(shè)置定期更新病毒庫任務(wù)開機(jī)啟動(dòng) sudo systemctl start clamav-daemon # 啟動(dòng)ClamAV守護(hù)進(jìn)程 sudo systemctl enable clamav-daemon # 設(shè)置ClamAV守護(hù)進(jìn)程開機(jī)啟動(dòng)
Part 4: Configure SELinux
SELinux (Security Enhanced Linux) is a security module in the CentOS system that can provide stricter access control and security protection. We can use the following command to configure SELinux:
- View SELinux status:
getenforce
- Modify the SELinux configuration file:
sudo vim /etc/selinux/config
Change SELINUX=enforcing to SELINUX=permissive, save and exit.
- Restart the system to take effect:
sudo reboot
Summary:
By updating the system, installing basic tools, configuring the firewall, installing and configuring anti-virus software, and configuring SELinux, we It can strengthen the security of CentOS system, thereby improving the stability and information security of our computer system. Of course, the above are just some basic configuration methods. We also need to keep aware of the latest security vulnerabilities, update and upgrade the system in a timely manner to respond to changing security threats, and use the Internet and computer resources rationally to develop good security awareness and Habit.
The above is the detailed content of How to configure your CentOS system to protect against malware and viruses. For more information, please follow other related articles on the PHP Chinese website!
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How to configure your CentOS system to protect against malware and viruses
Jul 05, 2023 am 10:25 AM
How to configure CentOS systems to prevent malware and virus intrusions Introduction: In today's digital era, computers and the Internet have become an indispensable part of people's daily lives. However, with the popularization of the Internet and the continuous advancement of computer technology, network security problems have become increasingly serious. The intrusion of malware and viruses poses a great threat to the security of our personal information and the stability of our computer systems. In order to better protect our computer systems from malware and viruses, this article will introduce how to configure Cent
