目前企业部署的因特网业务主要集中于这三类，也就是服务器托管和租赁、云服务器(又称云服务器)和自建 IDC，也只有这三类可以选择。
第一、对于传统 IDC而言，云租赁或云服务器只是对传统 IDC的一种补充和补充，其优点是部署非常方便，收费也非常灵活，但它有一个致命的原罪，即是云端，客户的东西都放在云端，然后在这个大数据时代，客户的数据和信息将无偿贡献给云端厂商。
第二、当然云工厂商会说我们的数据和客户的信息是不会动的，但是在面对巨大利益的前提下有可能吗？不行！云商云服务器，我们可以将其理解为一间屋子，里面装满了监视等设备，这些放着什么东西都在监视系统里，一举一动你的房东都知道。
第三、另外，我们对于传统 IDC的托管和租赁，一般中型以上的企业更多的选择是自己购买服务器，放到 IDC机房里，由自己的运营团队来管理和维护。小本生意和初创企业租赁的比例较高，可以节省大量硬件投入，使用功能强大的实体机器。
第四、自然，DC的租赁业务也分为实体实体机租赁和 VPS (与云的前身一样)租赁。事实上，传统 IDC就像是房东，为你创造优质舒适的居住环境，你只需要身份合法，从事正规的工作，然后你就可以拎包入住，只需按时付款，房间里的东西你想怎么做就怎么做，只要不破坏配套就行。
最终，自建 IDC，毫无疑问，自建 IDC是最安全最可靠的，但它所付出的代价非常昂贵，一般大型企业才会考虑自建。实际上，自行建造 IDC的最大成本是电费。自行建造 IDC就是自己花钱装修房子，想怎么玩就怎么玩，没人管，只要国家解决好水电问题就行。
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