制定Debian Exploit防范策略是一个复杂的过程,涉及到多个层面。以下是一些关键步骤和建议:
sudo apt update && sudo apt upgrade
sudo apt install unattended-upgrades
sudo ufw enable
sudo ufw allow ssh
sudo ufw status
sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 443 -j ACCEPT
sudo iptables -A INPUT -j DROP
/etc/ssh/sshd_config
文件。PermitRootLogin no
/etc/rsyslog.conf
或/etc/rsyslog.d/50-default.conf
。auth,authpriv.* /var/log/auth.log
*.*;auth,authpriv.none -/var/log/syslog
sudo apt install fail2ban
sudo systemctl enable fail2ban
sudo systemctl start fail2ban
sudo lynis audit system
/etc/passwd
, /etc/shadow
, /etc/sudoers
等。sudo apt install selinux-basics selinux-policy-default
sudo setenforce 1
sudo apt install apparmor apparmor-utils
sudo systemctl enable apparmor
sudo systemctl start apparmor
rsync
或tar
进行数据备份。sudo rsync -av / /backup/location
sudo apt install snort
sudo systemctl start snort
sudo nmap -sV localhost
sudo openvas-start
通过上述步骤,可以大大提高Debian系统的安全性,减少Exploit的风险。记住,安全是一个持续的过程,需要不断地更新和改进。