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

Question

我刚刚将Vagrant VM从一台主机复制到另一台主机。 两台机器都运行Windows 7。

尝试访问Github时，我将VM复制到的机器上出现以下错误。

该仓库肯定存在，并且我在原始机器上具有完全相同的Git配置。 为什么会这样？ 此错误的最佳答案对我没有影响。

[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，得到以下信息：

[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

我的流浪档案

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    # `vagrant box outdated`.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 ，您是否验证了它不是来自新主机的网络问题，可以从新主机上的vm ping github吗？

其次 ，如果ssh有问题（并且您不是像我这样的网络专家，它可能是新主机上的防火墙问题...），则可以更改为使用https版本

run `git config --local -e`

你应该有一节

[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

第三 ，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），则如果虚拟盒不同，则虚拟盒应该可以，但如果您使用虚拟盒的版本不同，则请更新GuestAdditions。

Answer 2

我通过在以下Virtualbox设置中创建一个新的Virtual Box-Only Only Adapter解决了此问题：

原始的未被识别，因此我不得不创建一个新的。

其次，正如FredericHenri在下面指出的那样-在我的原始主机（Win 7 PC）上，我正在运行Virtualbox 4.3.12，而在第二台主机（Win 7笔记本电脑）上，我正在运行Virtualbox 4.3.16-所以我也降级了第二台主机。这样就解决了问题。