如何在Vagrant和ruby-debug-ide上配置端口 [英] How to configure ports on Vagrant and ruby-debug-ide

问题描述

我正在尝试为我的Web应用程序配置调试器，但是在为其指定正确的端口时遇到了麻烦. Vagrantfile:

I’m trying to configure debugger for my web application, but I run into trouble with specifying correct ports for it. Vagrantfile:

config.vm.network :private_network, ip: "192.168.68.8"
config.vm.network :forwarded_port, guest: 80, host: 8080

/etc/hosts(在我的主机上)

/etc/hosts (on my host machine)

192.168.68.8    mysite.com

我安装了这两个gem进行调试

I installed these two gems for debugging

gem 'ruby-debug-ide', group: [:development,:test]
gem 'debase', group: [:development,:test]

我读到为了在流浪汉上使用ruby-debug-ide，我应该运行 rdebug-ide --host 0.0.0.0 --port 80 --dispatcher-port 8080 -- bin/rails s 其中--port应该是Vagrantfile的来宾端口和`--dispatcher-port``

I read that in order to use ruby-debug-ide on vagrant, I should run rdebug-ide --host 0.0.0.0 --port 80 --dispatcher-port 8080 -- bin/rails s where --port should be guest port from Vagrantfile and host port for `--dispatcher-port``

但是它说

Permission denied - bind(2) for "0.0.0.0" port 80

另一方面，如果尝试更改Vagrantfile中的端口，我将失去从127.0.0.1:specified_port访问我的应用程序的机会，但仍然可以从mysite.com进行操作，这令人困惑

On the other side, if I try to change those ports in Vagrantfile, I lose the opportunity to reach my application from 127.0.0.1:specified_port, but still can do it from mysite.com, which is confusing

推荐答案

您已经在80端口(apache或nginx)上监听了某些内容，因此无法在此端口上进行绑定.您可以执行以下任一操作

you already have something listening on port 80 (apache or nginx) so you cant bind on this port. You can do one of the following

1. 在另一个端口(例如3000)上启动导轨

在流浪汉中开始rdebug-ide --host 0.0.0.0 --port 3000 --dispatcher-port 3000 -- bin/rails s

如果您在vagrant文​​件中使用专用网络IP，则无需转发端口，因为您将使用其自己的IP访问VM服务器

If you use a private network IP in your vagrantfile you dont need to forward port as you'll access your VM server using its own IP

1. 检查在端口80上侦听的内容

在您的VM中运行sudo netstat -nltp，检查绑定端口80的进程并杀死它

run sudo netstat -nltp in your VM, check the process which binds the port 80 and kill it

例如

vagrant@precise32:/etc/init.d$ sudo netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      512/rpcbind
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1827/apache2
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      652/sshd
tcp        0      0 0.0.0.0:58397           0.0.0.0:*               LISTEN      539/rpc.statd
tcp6       0      0 :::111                  :::*                    LISTEN      512/rpcbind
tcp6       0      0 :::22                   :::*                    LISTEN      652/sshd
...

所以您将杀死apache2进程(PID 1827)

so you'll kill the apache2 process (PID 1827)

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