SSH連接在Azure虛擬機上被拒絕

Question

我能夠在Chrome上渲染虛擬機的公共IP，但無法將其與SSH連接，從而引發錯誤：連接到主機xxx.xxx.xxx.xx端口22：連接被拒絕。 當我在Portal上檢查虛擬機時，沒有分配安全組。 這與這有關嗎？ 我該如何解決？

Answer 1

根據您的描述，如果我們要ssh到docker鏡像，我們應該在該鏡像上安裝SSH，並打開該鏡像的端口，我將運行centos鏡像，例如：

docker pull centos:centos6
docker run -i -t centos:centos6
yum install openssh-server openssh-client(install ssh)
chkconfig sshd on
passwd(reset root password)
exit
docker commit 332b19ca916c centos/centosssh  (commit this image)

docker run -i -t -d -p 50001:22 centos/centosssh  (NAT for this container)
docker attach containerid  (connect this container)
vi /etc/ssh/sshd_config  (modify sshd config)

change UsePAM to no

service sshd start

然后在Azure NSG中打開端口50001。

這次，我們可以使用SSH連接它：

更新：

我使用CLI 2.0創建具有docker擴展名的VM，並將公共IP地址更改為static ，並使用命令sudo docker run -d -p 80:80 nginx在VM上運行容器。 然后使用chrome測試nginx，它可以正常工作，並且我可以使用Public IP和FQDN SSH到Azure VM。 Nginx容器：

jason@MyDockerVM:~$ docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                         NAMES
61e10ebb6d22        nginx               "nginx -g 'daemon ..."   4 minutes ago       Up 4 minutes        0.0.0.0:80->80/tcp, 443/tcp   kind_leavitt

嘗試使用FQDN來SSH主機：

[c:\~]$ ssh jason@mypublicdns.eastus.cloudapp.azure.com


Host 'mypublicdns.eastus.cloudapp.azure.com' resolved to 52.186.123.151.
Connecting to 52.186.123.151:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.19.0-65-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Fri Apr  7 06:40:06 UTC 2017

  System load:  0.31              Processes:              118
  Usage of /:   5.8% of 28.80GB   Users logged in:        1
  Memory usage: 12%               IP address for eth0:    10.0.0.4
  Swap usage:   0%                IP address for docker0: 172.17.0.1

嘗試使用公共IP地址來SSH主機：

[c:\~]$ ssh jason@52.186.123.151
Connecting to 52.186.123.151:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.19.0-65-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Fri Apr  7 06:40:55 UTC 2017

  System load:  0.21              Processes:              119
  Usage of /:   5.8% of 28.80GB   Users logged in:        1
  Memory usage: 12%               IP address for eth0:    10.0.0.4
  Swap usage:   0%                IP address for docker0: 172.17.0.1