
Lets see what how to set up passwordless SSH first
Consider 2 users possibly in 2 different servers.
usera and userb.
login to source server from where you wanna set up Passwordless SSH
su - usera
ssh-keygen -t rsa #not mandatory to pass keyphraase
ls ~/.ssh
cat id_rsa.pub
copy the content of the “id_rsa.pub” above to the destination server in the path, /home/userb/.ssh/authorized_keys
Now lets consider the other aspects to make the SSH work seamlessly
- Make sure below file allows PubkeyAuthentication to positive at least for the target user (userb in this case)
/etc/ssh/sshd_config
2. Make sure the below file has the entry for the user or the wildcard for all the user to allow the user to login
/etc/security/access.conf
Please do mention below in comment section, if you still see the issue