Is it possible to login with SSH on the Ubuntu touch mobile

[linuxlion]

My Google Pixel 3a is installed with Ubuntu touch and works OK.
It is possible to connect with SSH from an Ubuntu Linux system to the Ubuntu touch mobile?

[AppLee]

Hi @linuxlion

Glad you figured it out.
The SSH login with password is not recommended because it is less secure.
If you protected your device with a PIN code it can be brute forced quite easily with SSH.

The key pair is more convenient and secure.
But I can see a couple of (still insecure) scenarios where you would do it the way you chose.
Be it at your own risks.

[kristatos]

You can install UT Tweak Tool from the Openstore and activate SSH within the app. After connecting your phone and the Ubuntu-PC to the same network you enter the phone via SSH from your PC.

[linuxlion]

@kristatos
With "systemctl start ssh" the ssh.service is running.
"netstat -atn | grep LISTEN" give
tcp 0 0 0.0.0.0:22 0.0.0.0:*

"ifconfig wlan0" give
wlan0: flags=4163<UP, BROADCAST,RUNNING,MULTICAST> MTU 1500
inet 192.168.50.92 netmask 255.255.255.0 broadcast 192.168.50.225

On an other system in the same network, the command
"ssh sysadmin@192.168.50.92" give
sysadmin@192.168.50.92: Permission denied (publickey).

So I have contact with the sshd on my Ubuntu touch mobile.

Now I had to solve the publickey problem.

[jojumaxx]

Works for me with password only (no keys) with

"Password Authentication yes"

set in

/etc/ssh/sshd_config.

[AppLee]

Hi @linuxlion

Here is the official documentation.
https://docs.ubports.com/en/latest/userguide/advanceduse/ssh.html

Few easy steps well described. You shouldn't have any problem.

[linuxlion]

"Password Authentication yes" with a space between Password en Authentication cause that the sshd doesn't start.
With "PasswordAuthentication yes" without the space the sshd runs.

But in Putty I still get "Disconnected: No supported authentication methods
available (server sent )

I will try to place a public key on my Ubuntu touch device.

[linuxlion]

My problem is solved, I can login with ssh and password.
The directory /etc/ssh/sshd_config.d contains a file
with the name 50-lxc-android-config.conf
This file contains the line "PasswordAuthentication=no"
I changed the "no" to "yes" and restarted the sshd with
"systemctl restart ssh".

Strange that the account "phablet" can be used but doesn't exist in
/etc/passwd.

[AppLee]

Hi @linuxlion

Glad you figured it out.
The SSH login with password is not recommended because it is less secure.
If you protected your device with a PIN code it can be brute forced quite easily with SSH.

The key pair is more convenient and secure.
But I can see a couple of (still insecure) scenarios where you would do it the way you chose.
Be it at your own risks.

[linuxlion]

Now, I can also login with key and without password.