I don’t know why Google makes it so difficult to connect to it’s Compute Engine cloud service. Even the name is confusing. Why don’t they just call it Virtual Machine?
Anyway, here is how to connect.
- 1. Have your Compute Engine ready
- 2. Have your local machine ready
- 3. Add key to virtual machine
- 4. Connect with WinSCP
1. Have your Compute Engine ready
After created a VM instance, note the External IP. Click on the little 3 dot icon at the end of the VM and choose
View network details
On the new open site, choose Firewall and make sure
tcp:22 is allowed (so we can use ssh to connect)
2. Have your local machine ready
You will need to generate a public-private key pair on your local machine. In this tutorial, I use puttygen installed alongside with putty
Click generate and move your mouse in the blank area until a key appeared
Enter a password for the generated key, change the
Key comment to something easy to remember (this will be your username later), click
Save private key to a
Copy the key shown in the box.
3. Add key to virtual machine
Click the ssh button on your VM instance to open the online ssh window
Call the following commands:
Create .ssh folder
sudo mkdir -p ~/.ssh
Write the key to
sudo echo your_copied_key_here >> ~/.ssh/authorized_keys
Set permission for the file and folder
sudo chmod -R go= ~/.ssh
4. Connect with WinSCP
Wait, the title said Putty isn’t it? Hang on, we’re getting there.
Filled in the information you have. The username IS the key comment you set above. Then click on
SFTP, then paste this line to the box
SFTP Server to allow root permission on all files and folders
This works with Ubuntu only. Other distribution may have different location of
sudo su -c /usr/lib/openssh/sftp-server
Choose SSH > Authentication and browse to the private key you saved before. Click OK to go back to login screen
When logging in, you will be asked for password. This is the password you’ve set for your private key before.
After connected, click Commands > Open in PuTTY, and voilà, the ssh window appeared and connected, and asking for the same password.
I don’t know why, but connect directly with PuTTY or SuperPuTTY DOES NOT WORK.