将vagrantfile更改为非默认ssh端口后，vagrant vm无法启动

问题描述

我配置了vagrant以启动ubuntu VM。然后，我将VM配置为具有2个ssh端口（SSH服务应在2个不同的端口上运行）。

这是我的/ etc / ssh / sshd_config更改-

Port 22
Port 9000

vagrant@vagrant-ubuntu-trusty-64:~$ sudo vi /etc/ssh/sshd_config
vagrant@vagrant-ubuntu-trusty-64:~$ sudo ufw allow 9000/tcp
Rules updated
Rules updated (v6)
vagrant@vagrant-ubuntu-trusty-64:~$ sudo service ssh restart
ssh stop/waiting
ssh start/running,process 2059
vagrant@vagrant-ubuntu-trusty-64:~$ ss -tnlp | grep -E "22|9000"
LISTEN     0      128                       *:22                       *:*
LISTEN     0      128                       *:9000                     *:*
LISTEN     0      128                      :::22                      :::*
LISTEN     0      128                      :::9000                    :::*

我运行ufw允许在VM上打开9000，然后确保22和9000端口都可用于SSH。

然后，我没有更改Vagrantfile上的任何内容，只运行了“无用重载”-

MacBook-Pro:~ sg$ vagrant reload
==> default: Attempting graceful shutdown of VM...
    default: Guest communication Could not be established! This is usually because
    default: SSH is not running,the authentication @R_162_4045@ion was changed,default: or some other networking issue. Vagrant will force halt,if
    default: capable.
==> default: Forcing shutdown of VM...
==> default: Checking if Box 'ubuntu/trusty64' version '20190514.0.0' is up to date...
==> default: Clearing any prevIoUsly set forwarded ports...
==> default: Clearing any prevIoUsly set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
==> default: Forwarding ports...
    default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Warning: Connection reset. retrying...
    default: Warning: Remote connection disconnect. retrying...
    default: Warning: Connection reset. retrying...
    default: Warning: Remote connection disconnect. retrying...

为什么到VM的SSH连接失败？除非运行无用的破坏和无用的操作，否则无法再次访问VM。我还尝试过将portforwarding更改为指向另一个ssh端口，但这是另一个问题。我在这里做什么错了？

解决方法

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port ssh ssh vagrant vagrantfile