Enable SSH Root Access. By default, SSH root login is disabled for security purposes on FreeBSD. So, you can't access your FreeBSD server via SSH as root user. It is strongly recommended to leave SSH root login disabled and use a non-privileged user and allow SSH access to that user as described above. However, you can change this behaviour. By default when you install a fresh solaris 10 operating system, the root user does not have an ssh login access to the system. This is done for security purposes and it is a default setting. So if you want to login to your system as root user, you have to first login as a normal non-root user and then do a switch user (su -) to root user. To Set Up SSH on Oracle Solaris Systems. Ensure that the following options in the configuration file /etc/ssh/sshdconfig are set to yes: StrictModes. Determine if the SSH server daemon sshd is running. $ /usr/bin/svcs ssh; If the SSH server daemon sshd is not running, start this daemon. If the daemon is running, no further action is required. $ /usr/sbin/svcadm enable ssh.
How to enable authentication logging via syslog of SSHD daemon
1. To log ssh authentication to the messages file, add the following entry to the /etc/syslog.conf file:
NOTE: When editing /etc/syslog.conf, you must use tabs (not spaces) between the selector and action.
On the server, configure a file that enables the client to be recognized as a trusted host. For more information, see the FILES section of the sshd (1M) man page. Add the client as an entry to the server's /etc/ssh/shosts.equiv file. Permit SSH Login for Root in Oracle Solaris 11. Open Terminal window and switch to root user. Change the file /etc/ssh/sshdconfig PermitRootLogin yes with PermitRootLogin no and save file.
2. Restart the syslog daemon: In Solaris 10 and above:
In Solaris 9 and below:
3. Edit the /etc/ssh/sshd_config file. Modify the following lines as desired:
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Here, MaxAuthTries – specifies the maximum number of authentication attempts permitted per connection. MaxAuthTriesLog – specifies the number of failures reached before a failure is logged.
4. Restart the sshd daemon In Solaris 10 and above: