ssh passwordless login from windows to linux fails

Question

I am sure this has been asked many times, for some reason I have still problem with getting it to work.

I have a generated public and private key on my windows machine and copied the public key:

ssh-copy-id -i ~/.ssh/id_rsa.pub ekamolid@host

then on the server I did:

chmod 700 .ssh
chmod 644 authorized_keys

on local machine I run:

chmod 600 id_rsa

sshd_config file has:

I restarted ssh server on remote server.

when try:

ssh ekamolid@host

I get following error in /var/log/secure:

Feb 17 06:36:56 bur00cpw sudo: pam_unix(sudo:auth): authentication failure; logname=ekamolid uid=0 euid=0 tty=pts/3 ruser= rhost= user=ekamolid

What am I missing here?

authorized_keys contains line from id_rsa.pub ? file is not in dos mod ? chmod 600 id_rsa (not 700) ? — Archemar, Commented Feb 17, 2017 at 14:46
@Archemar I just changed chmod to 600. it is very possible is might be in dos mode, I wonder if changin it to linux on linux server would be fine. What do you think — Elbek, Commented Feb 17, 2017 at 14:53
no more idea sorry, yet either use ssh-copy-id or change ownership yourself. — Archemar, Commented Feb 17, 2017 at 15:09
It turned out to be ssh on windows issue, I installed cygwin and issue is gone now. — Elbek, Commented Feb 22, 2017 at 14:39

Philippos · Accepted Answer · 2017-02-17 16:13:42Z

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chmod go-w $HOME is another requirement.

And why not use 600 instead of 644 for the authorized_keys?

Regards, Philipp.

answered Feb 17, 2017 at 16:13

Philippos

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Elbek · Accepted Answer · 2017-02-22 20:03:26Z

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It turned out to be ssh on windows issue, I installed cygwin and issue is gone now.

answered Feb 22, 2017 at 20:03

Elbek

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