The SSH-2 protocol supports the following user authentications:
* Public key authentication (DSA, RSA*, OpenPGP)
* Host-based authentication
* Password-based authentication
Note: SSH-1 supports a wider range of user authentications, i.e., the public-key, RSA only, RhostsRSA, password, Rhosts (rsh-style), TIS, and Kerberos authentications.
“Nmap (“Network Mapperâ€) is a free and open source utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network
Best Server Security Configuration. Summary 1) Upgrade Apache/PHP, MySQL, OpenSSH, OpenSSL, cP/WHM etc2) cP/WHM Configuration3) SSH Access4) Mod_Security5) Firewall6) DDoS Protection7) Rootkit8) PHP Configuration9) Other10)The End Author: QKrun1x 1) Upgrade
More advanced firewalls can be time-consuming to install, but they are not difficult to use. Take the time to fortify your defenses. It is really worthwhile.Install a Two-way Software Firewall