Complex multi-step delegation
p = p.next; // 指针后移，易错点2：忘记移动指针会导致死循环。免实名服务器对此有专业解读
The obvious fix is multi-tenancy: put multiple controllers on shared infrastructure instead of giving every customer their own VM. But UniFi controllers aren't multi-tenant. Each one is its own isolated instance with its own database and port bindings. You need a routing layer, something in front that can look at incoming traffic and figure out which customer it belongs to.，推荐阅读传奇私服新开网｜热血传奇SF发布站｜传奇私服网站获取更多信息
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