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\n
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# Flush existing rules\r\niptables -F\r\n\r\n# Set default chain policies\r\niptables -P INPUT DROP\r\niptables -P FORWARD DROP\r\niptables -P OUTPUT ACCEPT\r\n\r\n# Allow localhost and related,established connections\r\niptables -A INPUT -i lo -j ACCEPT\r\niptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT\r\n\r\n# Allow SSH, HTTP, and HTTPS\r\niptables -A INPUT -p tcp --dport 22 -j ACCEPT\r\niptables -A INPUT -p tcp --dport 80 -j ACCEPT\r\niptables -A INPUT -p tcp --dport 443 -j ACCEPT\r\n\r\n# Log dropped packets\r\niptables -A INPUT -j LOG --log-prefix \"IPTables-Dropped: \"\r\n <\/code><\/pre>\n\r\nalert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:\"SQL Injection Attempt\"; flow:to_server,established; content:\"%27\"; http_uri; pcre:\"\/(\\%27)|(\\')|(\\-\\-)|(%23)|(#)\/i\"; sid:1000001; rev:1;)\r\n <\/code><\/pre>\n\u8cc7\u6599\u52a0\u5bc6\uff1a\u4fdd\u5b88\u79d8\u5bc6<\/strong><\/h2>\n
ssl_protocols TLSv1.2 TLSv1.3;\r\nssl_prefer_server_ciphers on;\r\nssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;\r\n <\/code><\/pre>\n# Create the encrypted volume\r\ncryptsetup luksFormat \/dev\/sdb1\r\n\r\n# Open the encrypted volume\r\ncryptsetup luksOpen \/dev\/sdb1 encrypted_volume\r\n\r\n# Create a filesystem on the encrypted volume\r\nmkfs.ext4 \/dev\/mapper\/encrypted_volume\r\n\r\n# Mount the volume\r\nmount \/dev\/mapper\/encrypted_volume \/mnt\/secure_data\r\n <\/code><\/pre>\n\u5b58\u53d6\u63a7\u5236<\/strong><\/h2>\n
\n
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\n
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