在CentOS环境下提高安全性,可以采取以下措施:
yum update
命令定期更新系统和所有已安装的软件包。sudo firewall-cmd --permanent --zone=public --add-service=http
sudo firewall-cmd --permanent --zone=public --add-service=https
sudo firewall-cmd --reload
sudo vi /etc/ssh/sshd_config
# 修改PermitRootLogin为no,修改PasswordAuthentication为no
sudo systemctl restart sshd
sudo setenforce 1
sudo visudo
sudo yum install audit
sudo systemctl enable auditd
sudo systemctl start auditd
sudo vi /etc/logrotate.conf
sudo yum install clamav clamav-update
sudo freshclam
sudo clamscan -r /
sudo yum install fail2ban
sudo systemctl enable fail2ban
sudo systemctl start fail2ban
sudo yum install certbot python-certbot-apache
sudo certbot --apache -d yourdomain.com
sudo rsync -avz /path/to/source /path/to/destination
sudo systemctl stop <service_name>
sudo systemctl disable <service_name>
sudo nmap -sV yourdomain.com
通过以上措施,可以显著提高CentOS环境的安全性。记住,安全是一个持续的过程,需要定期检查和更新。