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LinuxЧÀÍÆ÷ÉÏÉèÖ÷À»ðǽ £¬ÏÞÖƹ«Íø»á¼ûµÄIPµØµãºÍ¶Ë¿Ú £¬Ö»ÔÊÐíÐèÒªµÄÐÅÍÐIPµØµã»á¼ûЧÀÍÆ÷¡£ÒÔÏÂÊÇÒ»¸ö»ù±¾µÄ·À»ðǽÉèÖÃʾÀý £¬½öÔÊÐíÀ´×ÔÌض¨IPµØµãµÄHTTPºÍSSH»á¼û£º

# ɨ³ý¾É¹æÔòºÍÁ´
iptables -F
iptables -X

# ÉèÖÃĬÈϹæÔò£¬¾Ü¾øËùÓд«ÈëºÍ´«³öµÄ°ü
iptables -P INPUT DROP
iptables -P OUTPUT DROP

# ÔÊÐí»Ø»·»á¼û
iptables -A INPUT -i lo -j ACCEPT
iptables -A OUTPUT -o lo -j ACCEPT

# ÔÊÐíÌض¨IPµØµãµÄHTTPºÍSSH»á¼û
iptables -A INPUT -p tcp -s 192.168.1.100 --dport 80 -j ACCEPT
iptables -A INPUT -p tcp -s 192.168.1.100 --dport 22 -j ACCEPT

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µÚ¶þ²½£ºÊ¹ÓÃSSL/TLS¼ÓÃÜͨѶ

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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¿ÚÓ¦ÓõÄÉèÖÃ
    }
}

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LinuxЧÀÍÆ÷×÷Ϊ¿ªÔ´²Ù×÷ϵͳ £¬±£´æ×ÅÖÖÖÖ¸÷ÑùµÄÎó²îºÍÇå¾²ÎÊÌ⡣ΪÁË°ü¹ÜЧÀÍÆ÷µÄÇå¾²ÐÔ £¬ÎÒÃÇÓ¦¸Ã°´ÆÚÉý¼¶ºÍÐÞ¸´ÕâЩÎó²î¡£ÒÔÏÂÊÇÒ»¸ö¼òÆÓµÄÏÂÁî £¬ÓÃÓÚ¸üÐÂϵͳµÄÈí¼þ°ü£º

sudo apt update
sudo apt upgrade

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ΪÁ˱£»¤Web½Ó¿ÚÓ¦ÓõÄÃô¸ÐÎļþºÍĿ¼ £¬ÎÒÃÇÒªÉèÖúÏÀíµÄȨÏ޺ͻá¼û¿ØÖÆ¡£ÒÔÏÂÊÇÒ»¸ö¼òÆÓµÄÏÂÁî £¬ÓÃÓÚÐÞ¸ÄÎļþºÍĿ¼µÄȨÏÞ£º

# ½«ÎļþµÄËùÓÐÕßÉèΪroot£¬×éÉèΪwww-data£¬ÔÊÐíÓû§ºÍ×é¶Áд£¬ÆäËûÓû§Ö»ÔÊÐí¶ÁÈ¡
sudo chown root:www-data filename
sudo chmod 640 filename

# ½«Ä¿Â¼µÄËùÓÐÕßÉèΪroot£¬×éÉèΪwww-data£¬ÔÊÐíÓû§ºÍ×é¶ÁдºÍÖ´ÐÐ£¬ÆäËûÓû§Ö»ÔÊÐíÖ´ÐÐ
sudo chown root:www-data directory
sudo chmod 750 directory

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