openSolaris 2008 - Solaris Secure Shell Enhancements in the Solaris 10 Release - System Administration Guide: Security Services

Since the Solaris 9 release, the following changes have been introduced to Solaris Secure Shell:

Solaris Secure Shell is based on OpenSSH 3.5p1. The Solaris implementation also includes features and bug fixes from versions up to OpenSSH 3.8p1.
The default value of X11Forwarding is yes in the /etc/ssh/sshd_config file.
The following keywords have been introduced:
- GSSAPIAuthentication
- GSSAPIKeyExchange
- GSSAPIDelegateCredentials
- GSSAPIStoreDelegatedCredentials
- KbdInteractiveAuthentication
The GSSAPI keywords enable Solaris Secure Shell to use GSS credentials for authentication. The KbdInteractiveAuthentication keyword supports arbitrary prompting and password changing in PAM. For a complete list of keywords and their default values, see Keywords in Solaris Secure Shell.
The ARCFOUR and AES128-CTR ciphers are now available. ARCFOUR is also known as RC4. The AES cipher is AES in counter mode.
The sshd daemon uses the variables in /etc/default/login and the login command. The /etc/default/login variables can be overridden by values in the sshd_config file. For more information, see Solaris Secure Shell and Login Environment Variables and the sshd_config(4) man page.