我很难找到有关让凤凰城（以及牛仔和牧场）收听IPv4和IPv6的信息。
我正在使用Ubuntu 16.04运行VPS。它具有IPv4和IPv6地址。
运行printf时，它显示static void Main(string[] args)
{
Console.WriteLine(
"Please enter the number of numbers you would like to find the average for, or add together: ");
int numofnum = int.Parse(Console.ReadLine());
int[] numbers = new int[numofnum];
Console.WriteLine("Would you like to find the average or sum of these numbers? (average/sum)");
var avsu = Console.ReadLine();
var sum = 0;
if (avsu != "average" && avsu != "sum")
{
return;
}
for (var i = 0; i < numofnum; i++)
{
Console.Write("Please enter Number " + i + " to add: ");
numbers[i] = int.Parse(Console.ReadLine());
}
for (var i = 0; i < numofnum; i++)
{
Console.WriteLine("You entered the following values: ");
Console.WriteLine("Number " + i + ": " + numbers[i]);
}
if (avsu == "sum")
{
sum = numbers.Sum();
Console.WriteLine("The sim of these numbers is: " + sum);
}
if (avsu == "average")
{
var average = sum / numbers.Length;
Console.WriteLine("The average of these numbers is: " + average);
}
}
仅侦听IPv4，并在Phoenix config中指定端口。
而其他流程（如netstat -tulpn）能够同时监听IPv4和IPv6。
我已尝试在beam中指定epmd之类的端口，但由于无法解析为整数而导致崩溃。
有人能指出我正确的方向吗？我是否需要以某种方式添加自定义牛仔听众？
我宁愿不必在前面运行Nginx来收听IPv6流量。
Config我试过了：
"::4000"堆栈跟踪（看起来像Phoenix只需要一个整数端口）：
config.exs这也是凤凰config :my_app, MyApp.Endpoint,
http: [port: "[::]:4000"]
和牛仔** (Mix) Could not start application my_app: MyApp.start(:normal, []) returned an error: shutdown: failed to start child: MyApp.Endpoint
** (EXIT) shutdown: failed to start child: Phoenix.Endpoint.Server
** (EXIT) an exception was raised:
** (ArgumentError) argument error
:erlang.binary_to_integer("[::]:4000")
(phoenix) lib/phoenix/endpoint/server.ex:32: Phoenix.Endpoint.Server.to_port/1
(phoenix) lib/phoenix/endpoint/server.ex:28: Phoenix.Endpoint.Server.default/3
(phoenix) lib/phoenix/endpoint/server.ex:17: anonymous fn/5 in Phoenix.Endpoint.Server.init/1
(elixir) lib/enum.ex:1623: Enum."-reduce/3-lists^foldl/2-0-"/3
(phoenix) lib/phoenix/endpoint/server.ex:15: Phoenix.Endpoint.Server.init/1
(stdlib) supervisor.erl:294: :supervisor.init/1
(stdlib) gen_server.erl:328: :gen_server.init_it/6
(stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
答案 0 :(得分：5)
config :my_app, MyApp.Endpoint,
http: [port: 4000, ip: {0, 0, 0, 0, 0, 0, 0, 0}]
这告诉Phoenix要监听所有IPv6地址。它还会监听IPv4。
我原本以为这只是IPv6，因为netstat -tulpn只显示beam而tcp6而不是tcp。但经过测试，很明显它也在将IPv4视为＆＃34; IPv4映射的IPv6地址。＆＃34;
IP元组格式是Erlang类型inet:ip6_address()。
答案 1 :(得分：4)
根据https://hexdocs.pm/phoenix/endpoint.html，您也可以仅使用:inet6。这对我有用：
config :my_app, MyApp.Endpoint,
http: [:inet6, port: 4000],