SSH is a software package that enables secure system administration and file transfers over insecure networks. It is used in nearly every data center and in every large enterprise. This page was created by the inventor of SSH, Tatu Ylonen (twitter: @tjssh). He wrote ssh-1.x and ssh.
I recently set up a Ubiquiti access point (model UAP-AC-PRO-US). Part of the process required me to log into the access point, but I could not find any connection details such as the port, username, or password. After a bit of digging, I figured it out.
Logging into AP before it is adopted
When your access point is new and hasn’t been connected to your UniFi controller yet, the default SSH credentials are:
You can find the IP address for the access point listed in the UniFi controller’s Devices page. In my case, the IP address was 10.0.0.103. To log in, I ran the following command from my terminal:
Logging into AP after it is adopted
If the access point is already adopted and provisioned, the UniFi controller changed the SSH login credentials for it. If your UniFi controller already manages other access points, the new access point’s SSH credentials are changed to the same credentials. If this is the first access point added to the UniFi controller, the new username is admin and the password was randomized.
Using an ssh-agent, or how to type your ssh password once, safely. If you work a lot on linux and use ssh often, you quickly realize that typing your password every time you connect to a remote host gets annoying. A password manager, digital vault, form filler and secure digital wallet. 1Password remembers all your passwords for you to help keep account information safe.
If you need to change the SSH login credentials for the access point, please read this article.
To find the IP address for your access point, log into your UniFi controller and go to the Devices page. Assuming that the access point’s IP is 192.168.1.5, the username is admin, and the password is password (please do not use this as your password), you can SSH into the access point with a command such as the following:
Fix “no matching MAC found”
Your system’s SSH client might have restrictions that prevent the commands above from working properly. For example, you might run into the following issue:
This can be fixed by supplying an additional option to the ssh command as shown below.
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If you’re tired of putting a password everything you login via SSH into your server via ssh root@your_server, there are ways to automatically login to your server without requiring you input a password. This is by using the built-in ssh-keygen command available in your Windows 10.
Basically, the ssh-keygen will create an authentication key pairs that you can use for Secure Shell protocol login.
How to login to SSH without Password
To start, open up a command prompt on your Windows 10. Type in your Cortana CMD.
Now, enter the command ssh-keygen, this will asked to enter a file name for it, make sure to leave it as blank so that it will save the pair as the default filename id_rsa:
Now, you’ll be asked to enter a passphrase. To improved security of your RSA key pair add your passphrase in it. You’ll also be asked to re-enter it again.
It will then create the id_rsa and id_rsa.pub file in your C:UsersYOUR_USERNAME.ssh directory and in the command screen it will show a randomart image.
Since ssh-copy-idis not a built-in command in Windows 10 (See explanation at the bottom), you need to manually add your public key to your server.
open up the id_rsa.pub file with a notepad and copy the whole text. The file is in C:UsersYOUR_USERNAME.ssh folder. Example id_rsa.pub file below.
Now, you need to login to your server via SSH with password as of now ssh root@YOUR_SERVER. Then you need to edit or make a file authorized_keys via vim. Enter this command:
Then paste the content of your id_rsa.pub on it or if it has existing keys, just paste it on the bottom. Then don’t forget to save it :wq.
If you have problem where there is ^M showing, especially if there are existing keys, just type this command e ++ff=dos and those ^M will be converted to normal lines.
After that, you can now login to your CMD via ssh root@YOUR_SERVER without requiring for entering your password.
SSH-Copy-ID is not available on Windows 10
The only problem with windows 10 is there is no ssh-copy-id command available in the OS and you need to manually add the pair into your server. You’ll get an error ‘ssh-copy-id’ is not recognized as an internal or external command, operable program or batch file.’ when you try to input it.
Load Key Operation not Permitted
If you’re getting an error saying “Load key “C:UsersYOUR_USERNAME/.ssh/id_rsa”: Operation not permitted”, this means you’re trying to create a folder in your .ssh directory named id_rsa.
1password Ssh Port
Some people create these folder because they though the key was saved in that folder when they entered the ssh-keygen which says the following:
1password Ssh Login
This happens, when you named the file when saving the ssh-keygen, make sure to leave it as blank to make sure the private key is save as the default id_rsa and id_rsa.pub.