Permission denied (publickey,keyboard-interactive). about ssh

[wjes]

I had the same problem with LineageOS 17.1 in Samsung Galaxy J7. Be 100% sure the permissions and ownership are correct before trying anything else (since StrictModes is set to yes by default in sshd_config)

In the client

• chmod 700 .ssh
• chmod 600 .ssh/id_rsa
• chown -R <username>:<username> .ssh

In the server

• chmod 700 .ssh
• chmod 600 .ssh/authorized_keys
• chown -R <username>:<username> .ssh

Also check the integrity of your key(s) in authorized_keys (no line breaks withing the keys and stuff)

If the problem persists check SELinux

• restorecon -R -v /<username>/.ssh

You could try setting StrictModes to no and turning SELinux off with setenforce 0 to see if the problem is beyond that boundaries. Hope it helps :)

[cizordj]

@wjes Thanks for the tip! It worked on my Samsung running stock ROM. I would like to write an addendum for your comment.

In the server if the folder is /data/ssh/shell/.ssh you must change the owner to the user shell, like this:
chown -R shell:shell /data/ssh/shell/.ssh/
and for the root authorized_keys
chown -R root:root /data/ssh/root/.ssh/

[lemmy04]

you have to put your public key into those two files, not your private key.

[kdb424]

chmod 600 authorized_keys
It's very picky about this for security reasons.

[thekiefs]

I have this same error. I put id_rsa.pub in /data/ssh/root/.ssh/authorized_keys, then ran chmod 600 authorized_keys and I'm still having problems. Any help? @kdb424 @lemmy04

[3nd0y]

@lemmy04 yes i put the public key, also chmod 600 as suggest @kdb424 but error still occurred.

I am use oreo Android 8.0, stock rom.

[WaytrueDeng]

I have met the same problem, and I did everything i colud.but it still permission denied.I am using the EvolutionX 4.1 for OnePlus7pro.

[3nd0y]

I see, so i need put the authorized_keys in /data/ssh/root/.ssh/ or /data/ssh/shell/.ssh/ in android that's why everytime i need try to login from client it's never work, because what i did is put like /data/ssh/root/authorized_keys or /data/ssh/shell/authorized_keys. Thanks all. I'll close this