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sudo apt update
sudo apt upgrade

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sudo iptables -A INPUT -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
sudo iptables -A OUTPUT -o eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT
sudo iptables -A INPUT -i eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
sudo iptables -A OUTPUT -o eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT
sudo iptables -A INPUT -j DROP
sudo iptables -A OUTPUT -j DROP

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server {
    listen 443 ssl;
    server_name example.com;

    ssl_certificate /etc/nginx/ssl/example.com.crt;
    ssl_certificate_key /etc/nginx/ssl/example.com.key;

    location / {
        # Web½Ó¿ÚÉèÖÃ
    }
}

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<Directory "/var/www/html">
    Order deny,allow
    Deny from all
    Allow from 192.168.0.0/24
</Directory>

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password required pam_cracklib.so retry=3 minlen=8 dcredit=-1 ucredit=-1 ocredit=-1 lcredit=-1

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