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LNMP是指Linux、Nginx、MySQL和PHP的组合,这是一个非常流行的用于部署Web应用的技术栈。为了确保PHP应用在LNMP服务器上的安全性,可以采取以下一些安全加固实践:
location /sensitive-data {
allow 192.168.1.0/24;
deny all;
}
server {
listen 80;
server_name example.com;
return 301 https://$host$request_uri;
}
limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
server {
location / {
limit_req zone=one burst=5 nodelay;
}
}
; 禁用不必要的扩展
disable_functions = ; 保留必要的函数
if ($_FILES["file"]["size"] > 5000000) {
echo "File is too large.";
} else {
if (file_exists($_FILES["file"]["tmp_name"])) {
$upload_dir = "/path/to/upload/dir/";
$upload_file = $upload_dir . basename($_FILES["file"]["name"]);
if (move_uploaded_file($_FILES["file"]["tmp_name"], $upload_file)) {
echo "File is valid, and was successfully uploaded.\n";
} else {
echo "Upload failed.\n";
}
} else {
echo "No file uploaded.";
}
}
header("Content-Security-Policy: default-src 'self'; script-src 'self' https://trustedscripts.example.com; style-src 'self' https://trustedstyles.example.com; img-src 'self' data:;");
GRANT ALL PRIVILEGES ON mydatabase.* TO 'myuser'@'localhost' IDENTIFIED BY 'mypassword';
FLUSH PRIVILEGES;
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username);
$stmt->execute();
通过以上这些实践,可以显著提高LNMP服务器上PHP应用的安全性。
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