裸金属服务器的安全性，是如何体现的呢？

在客户上云过程中，安全是选择裸金属服务器的一个重要标准，特别是金融企业、医药企业、政府相关的企业，对自身数据的安全性尤为重视。那么裸金属服务器的安全性，是如何体现的呢？

应对外部威胁的“胸有成竹”

日前发布的“2019年上半年DDoS攻击报告”显示，2019年上半年的DDoS攻击，较2018年同期上升。发动DDoS攻击主要受“利益”驱使，大多来源于同行间的“恶意竞争 ”，此外还包括敲诈勒索、玩家作弊等行为。其中，游戏行业被攻击量占比超过4成，最被“关注”。

面对现复杂多变的网络环境，一般企业并不具备处理和应对这些网络攻击的能力，无法自行处理遭遇的DDoS攻击。而主机参考裸金属服务器通过部署一系列的防护策略，可对DDoS攻击进行全面防御、隔离和阻挡。

此外，ACL安全组集合轻量级agent组件和云端强大的分析平台， 通过“云+端”多点联动的云服务方式，为用户提供资产管理、漏洞管理、补丁升级、暴力破解防护、网站威胁检测等业务。加之Web应用防护墙通过防御SQL注入、XSS攻击等OWASP常见攻击，能过滤海量恶意访问，将正常、安全的流量回源到裸金属物理服务器。

内部自身安全的“百倍信心”

主机参考裸金属服务器最大的特点就是，让单租户拥有完全物理隔离的专属物理服务器，不存在任何形式的虚拟化，它给了客户只有使用物理机才有“安全感”。

除了具备物理隔离特性之外，为了更好地保障客户云上数据安全，裸金属服务器一般会采用“加密计算”方式，确保加密数据只能在安全可信的环境中计算。另外，数据的多副本冗余存储、备份等也是保障数据安全的积极措施。

主机参考裸金属服务器采用的分布式存储技术，多副本冗余保存在多个数据中心，用于抵御数据中心级别的故障，保证超级云硬盘中所有数据持久可用，保障数据安全不丢失。系统盘和数据盘加密保存，且加密超级云硬盘的备份数据自动加密，数据更安全。

如果强调安全性，客户为何一定要选择裸金属服务器？简单地说，如果有一个需要快速上线的应用程序，或者有临时的业务负载，必须在几分钟内上线，那么虚拟机是不错的选择。但是如果应用程序对性能很敏感，并且要求安全可靠的运行环境，那么裸金属服务器毫无疑问将是最佳的选择。

主机参考最新推出了裸金属服务器租用产品，裸金属服务器是一种按需购买、按量付费的物理云服务器租用服务，可以提供云端专用的高性能、安全隔离的物理服务器集群。具体详询主机参考客服zhujicankao.com。

In the process of customers' cloud access, security is an important standard for choosing bare metal servers, especially for financial enterprises, pharmaceutical enterprises and government related enterprises, which attach great importance to the security of their own data. So how is the security of bare metal server reflected?

"Ready to deal with external threats"

According to the recently released "report on DDoS attacks in the first half of 2019", the number of DDoS attacks in the first half of 2019 is higher than that in the same period of 2018. DDoS attacks are mainly driven by "interests", most of which come from "malicious competition" among peers. In addition, they also include extortion, player cheating and other behaviors. Among them, more than 40% of the game industry has been attacked, the most "concerned".

In the face of the complex and changeable network environment, general enterprises do not have the ability to deal with and deal with these network attacks, and cannot deal with the DDoS attacks by themselves. By deploying a series of protection strategies, the host can fully defend, isolate and block DDoS attacks.

In addition, ACL security group integrates lightweight agent components and a powerful analysis platform in the cloud, and provides users with asset management, vulnerability management, patch upgrade, violent crack protection, website threat detection and other services through the cloud + end multi-point linkage cloud service mode. In addition, the web application protection wall can filter massive malicious access and return normal and secure traffic to the bare metal physical server by defending against common OWASP attacks such as SQL injection and XSS attacks.

"100 times confidence" in internal security

The biggest feature of the host reference bare metal server is that it allows a single tenant to have a completely physically isolated dedicated physical server without any form of virtualization, which gives customers a "sense of security" only when they use physical machines.

In addition to the physical isolation feature, in order to better protect the data security on the customer cloud, the bare metal server will generally adopt the "encrypted computing" mode to ensure that the encrypted data can only be calculated in a safe and reliable environment. In addition, redundant storage and backup of multiple copies of data are also positive measures to ensure data security.

The host refers to the distributed storage technology adopted by the bare metal server, and the multiple copies are stored in multiple data centers in redundancy, which is used to resist the failure of the data center level, ensure the persistent availability of all data in the super cloud disk, and ensure the data security without loss. The system disk and data disk are encrypted and saved, and the backup data of the encrypted super cloud disk is automatically encrypted, so the data is more secure.

If security is emphasized, why do customers have to choose bare metal servers? Simply put, if there is an application that needs to go online quickly, or there is a temporary business load, and it must go online in a few minutes, then virtual machine is a good choice. But if the application is sensitive to performance and requires a safe and reliable operating environment, bare metal servers will undoubtedly be the best choice.

The host reference newly launched the bare metal server rental product. The bare metal server is a physical cloud server rental service purchased on demand and paid by volume, which can provide a high-performance, secure and isolated physical server cluster dedicated to the cloud. For details, please refer to customer service zhujicankao.com.

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