几块钱一年的”NAT 小鸡”到处都是，便宜得离谱。它能干嘛、不能干嘛？
一句话解释
NAT 小鸡是多台 VPS 共享一个公网 IPv4，每台只分到一段端口（比如 10000–10025），没有独立的 80/443 等标准端口。因为不占用稀缺的独立 IPv4，所以极便宜。
能干什么
- 跑脚本、小工具、自用服务、做被控端 / 中转。
- 配合 CDN 回源到非标端口，也能勉强对外提供网站。
不适合什么
- 常规建站：没有 80/443 端口，浏览器默认访问不了。
- 需要特定标准端口的服务。
买前确认
分到的端口范围、是否带 IPv6（很多 NAT 机送独立 IPv6，能缓解限制）。
提醒
NAT 小鸡是”预算极低 + 自用”的选择，别指望它当正经建站机。
挑合适的在售机型？去 库存监控 按线路 / 地区筛选。
“NAT VPS” plans for a few dollars a year are everywhere — absurdly cheap. What can they do, and what can’t they?
In a Nutshell
A NAT VPS shares a single public IPv4 address among multiple VPS instances. Each instance gets only a limited port range (e.g., 10000–10025) and has no access to standard ports like 80/443. Because it doesn’t consume a scarce dedicated IPv4, the price is extremely low.
What It’s Good For
- Running scripts, small tools, personal services, or acting as a relay or secondary node.
- With a CDN proxying to a non-standard port, it can even serve a website in a pinch.
What It’s Not Suitable For
- Standard website hosting: without ports 80/443, browsers can’t reach it by default.
- Any service that requires specific standard ports.
Before You Buy
Confirm the assigned port range and whether it includes IPv6 (many NAT VPS come with a dedicated IPv6, which partially offsets the port restrictions).
Reminder
A NAT VPS is for “extreme budget + personal use” scenarios. Don’t expect it to serve as a proper web host.
Looking for a suitable VPS? Visit the stock monitor to filter by network line and region.
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