ssh：连接到主机 github.com 端口 22：将 VM 复制到另一台主机后无法访问网络

Question

我刚刚将我的 Vagrant VM 从一台主机复制到另一台主机。两台机器都是运行Windows7.

在我将 VM 复制到其中的一台机器上，我在尝试访问 Github 时收到以下错误。

回购肯定存在，我在原始机器上有完全相同的 Git 配置。为什么会这样？此错误的最高 SO 答案对我没有影响。

[vagrant@localhost /var/www/wrestlemaniamainevent]# git remote -v
origin  git@github.com:crmpicco/wrestlemaniamainevent.git (fetch)
origin  git@github.com:crmpicco/wrestlemaniamainevent.git (push)

[vagrant@localhost /var/www/wrestlemaniamainevent]# git fetch origin
ssh: connect to host github.com port 22: Network is unreachable
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

我可以 ping Github，当我将 URL 更改为 https 时，我得到了这个：

[vagrant@localhost /var/www/wrestlemaniamainevent]# ping github.com
PING github.com (192.30.252.129) 56(84) bytes of data.
64 bytes from 192.30.252.129: icmp_seq=23 ttl=51 time=112 ms
64 bytes from 192.30.252.129: icmp_seq=24 ttl=51 time=110 ms
64 bytes from 192.30.252.129: icmp_seq=25 ttl=51 time=112 ms
64 bytes from 192.30.252.129: icmp_seq=26 ttl=51 time=111 ms
64 bytes from 192.30.252.129: icmp_seq=27 ttl=51 time=112 ms
^C
--- github.com ping statistics ---
27 packets transmitted, 5 received, 81% packet loss, time 26010ms
rtt min/avg/max/mdev = 110.904/111.957/112.869/0.756 ms
[vagrant@localhost /var/www/wrestlemaniamainevent]# git fetch origin
fatal: unable to access 'https://github.com/crmpicco/wrestlemaniamainevent.git/': Failed connect to github.com:443; Network is unreachable

我的 Vagrantfile

unless Vagrant.has_plugin?("vagrant-host-shell")
  raise 'vagrant-host-shell plugin is not installed!'
end

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

PRIVATE_NETWORK_IP = "10.0.0.200"

SERVER_NAME = "crmpicco.dev"

nfs_setting = RUBY_PLATFORM =~ /darwin/ || RUBY_PLATFORM =~ /linux/

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
    # Disable automatic box update checking. If you disable this, then
    # boxes will only be checked for updates when the user runs
    # `vagrant box outdated`. This is not recommended.
    # config.vm.box_check_update = false

    config.ssh.forward_agent = true

    config.vm.define "local", primary: true do |local|

        nfs_setting = RUBY_PLATFORM =~ /darwin/ || RUBY_PLATFORM =~ /linux/

        local.vm.network :forwarded_port, guest:4444, host:4444
        local.vm.network :private_network, ip: PRIVATE_NETWORK_IP

        local.vm.box = "crmpicco-centos7"
        local.vm.box_url = "http://crmpicco.com/boxes/crmpicco.box"

# If you want to keep your code local and mount onto your VM, uncomment this.
#
#        local.vm.synced_folder "./../www", "/var/www", id: "vagrant-root" , :nfs => nfs_setting,
#            mount_options: ["sync,rsize=32768,wsize=32768,rw,proto=tcp"]

        local.vm.provider :virtualbox do |v|
            v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
            v.customize ["modifyvm", :id, "--memory", 3072]
            v.customize ["modifyvm", :id, "--cpus", 2]
            v.customize ["modifyvm", :id, "--name", SERVER_NAME]
        end
    end


# If you want to keep your code local and mount onto your VM, comment this whole section
     if nfs_setting
            config.vm.provision :host_shell do |host_shell|
              host_shell.inline = 'mkdir -p /Users/Shared/crmpicco'
            end

            config.vm.provision :host_shell, run: "always" do |host_shell|
              host_shell.inline = "echo 'Waiting for NFS to be available, it can take a while'"
            end

            config.vm.provision :host_shell, run: "always" do |host_shell|
              host_shell.inline = "sleep 30"
            end

            config.vm.provision :host_shell, run: "always" do |host_shell|
              host_shell.inline = "mount -t nfs -o 'sync,rsize=32768,wsize=32768,rw' #{PRIVATE_NETWORK_IP}:/var/www/current /Users/Shared/crmpicco"
            end
     end

end

Answer 1

首先，你确认它不是新主机的网络问题了吗，你能从新主机上的虚拟机 ping github 吗？

其次，如果 ssh 有问题（而且你不是像我这样的网络专家 - 可能是新主机上的防火墙问题......），您可以更改为使用 https 版本

run `git config --local -e`

你应该有一个部分

[remote "origin"]
    url = git@github.com:crmpicco/wrestlemaniamainevent.git

您可以将其更改为

[remote "origin"]
    url = https://github.com/crmpicco/wrestlemaniamainevent.git

Third，确保两台主机上的 vagrant 版本相同（特别是如果一台主机运行 vagrant 1.6 而另一台主机运行 1.7），如果不同但虚拟框应该没问题但要更新GuestAdditions 如果你有不同版本的虚拟盒子。

Answer 2

我通过在 Virtualbox 设置中创建一个新的 Virtual Box Host-Only Adapter 解决了这个问题，这里：

原来的无法识别，所以我不得不创建一个新的。

其次，正如 FredericHenri 在下面指出的那样 - 在我原来的主机（Win 7 PC）上我是运行 Virtualbox 4.3.12，而在第二台主机（Win 7 笔记本电脑）上我是运行 Virtualbox 4.3.16 - 所以我也降级了第二台主机，这解决了问题。

ssh：连接到主机 github.com 端口 22：将 VM 复制到另一台主机后无法访问网络

ssh: connect to host github.com port 22: Network is unreachable after copying VM to another host machine

git

ssh

github

windows-7

vagrant