Enable root session in SSH on Solaris 10.

Normally Solaris 10 has already installed ssh. but It doesn't allow root to login.
So we have to modify sshd_config within /etc/ssh/sshd_config
Using vi we'll have

#vi /etc/ssh/sshd_config

Look for PermitRootLogin and replace with yes

Then restart the service with

#svcadm restart svc:/network/ssh:default

That's all