ssh Used to protect against IP spoofing and source routing SSL Used to provide security for general Internet services SATAN Used for remote scanning of Unix and firewall systems Kerberos Used to reduce system vulnerability to .rhosts attacks Features of the Client/Server authentication exchange: The client uses the session key from the credentials obtained for the server for a KRB_AP_REP message The client and server share an encryption key that can be …showed first 75 words of 554 total…

…showed last 75 words of 554 total…a ticket for the client to present to the server The client can specify a number of options in the KRB_AS_REQ request message, such as to check whether the ticket should be postdated The client sends its own identity and the identity of the server to the Key Distribution Center The client verifies the KRB_AS_REP message by comparing the cname and cream fields in the reply with the request ------------------------------------------------------------------------ **Bibliography**