For better security of your ssh2 server, you can configure it to use pam authentication. To do that, you must create the /etc/pam.d/ssh file.
Create the ssh file touch /etc/pam.d/ssh and add or change, if necessary:
#%PAM-1.0
auth required /lib/security/pam_pwdb.so shadow
auth required /lib/security/pam_nologin.so
account required /lib/security/pam_pwdb.so
password required /lib/security/pam_cracklib.so
password required /lib/security/pam_pwdb.so use_authtok nullok md5 shadow
session required /lib/security/pam_pwdb.so
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For Further documentation and more details, there are several man pages you can read:
- ssh-add2(1)
- adds identities for the authentication agent
- ssh-agent2(1)
- authentication agent
- ssh-keygen2(1)
- authentication key pair generation
- ssh2(1)
- secure shell client remote login program
- sshd2(8)
- secure shell daemon
