英文:
How to set the golang server listener available for only my LAN network
问题
我正在使用iris平台进行Go语言编程（我是一个初学者）。我想让我家中的所有计算机都能够访问作为本地机器之一的Go服务器。当我将监听器设置为我的网络IP（192.168.0.0）或任何指定的IP（192.168.0.15）时，它会返回一个恐慌错误。只有可用的0.0.0.0或127.0.0.1/localhost或192.168.0.19 - 这与localhost相同。
错误信息是：panic: listen tcp4 192.168.0.12:9999: bind: The requested address is not valid in its context.
谢谢大家的帮助。
英文:
I am using iris platform to do programming in go language (I am very beginner). I want to make all my computers at home be available for accessing to go server which is one of the local machine as well. When I set the listener with my network IP (192.168.0.0) or with any specified IP (192.168.0.15) it gives me panic error back. Only available 0.0.0.0 or 127.0.0.1/localhost or 192.168.0.19 - that is same as localhost
import "net"
...
ln, err := net.Listen("tcp4", "192.168.12:9999")
if err != nil{
panic(err)
}
iris.Serve(ln)
...
The error is: panic: listen tcp4 192.168.0.12:9999: bind: The requested address is not valid in its context.
Thanks to all for help.
答案1
得分: 7
你应该了解一下网络工作原理，但以下是一些入门要点。
你监听的是一个端口，而不是一个IP地址。所以，无论你使用哪台机器作为服务器，都要找到你的本地IP地址：
在Linux或Mac上，你可以通过多种方式获取：
使用ifconfig | grep netmask命令，获取你的本地地址，例如192.168.x.xx。
然后，使用你的Go程序启动服务器，并在本地端口（如8080）上进行监听。
例如：
if err := http.ListenAndServe(":8080", nil); err != nil {
//处理错误
}
然后，你可以使用同一Wi-Fi网络下的其他设备访问该服务器。使用另一台计算机，在浏览器中访问192.168.x.xx:8080。
回答你在评论中的问题，除非他们与你的Wi-Fi网络连接，否则外部人员无法访问你的本地服务器。
英文:
You should read up on how networking works but here are some points to get you started.
You listen on a port, not an IP address. So whatever machine you're using as your server, find your local IP address:
On Linux or Mac you can do it many ways:
ifconfig | grep netmask and get your local address eg. 192.168.x.xx
Then start up your server with your Go program and listen on a localhost port like 8080.
eg.
if err := http.ListenAndServe(":8080", nil); err != nil {
//handle error
}
Then you can access the server with other machines in your house assuming they are on the same Wifi. Use a different computer and visit 192.168.x.xx:8080 from a browser.
To answer your question in your comments, outsiders cannot access your local server unless they have a connection to your Wifi.
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