claim: The Battle of the Trebia occurred on the left bank of the Volga River.
evidence: Simple and Protected GSSAPI Negotiation Mechanism -LRB- SPNEGO -RRB- , often pronounced `` spenay-go '' , is a GSSAPI `` pseudo mechanism '' used by client-server software to negotiate the choice of security technology .. GSSAPI. Generic Security Services Application Program Interface. SPNEGO is used when a client application wants to authenticate to a remote server , but neither end is sure what authentication protocols the other supports .. authentication. authentication. The pseudo-mechanism uses a protocol to determine what common GSSAPI mechanisms are available , selects one and then dispatches all further security operations to it .. GSSAPI. Generic Security Services Application Program Interface. This can help organizations deploy new security mechanisms in a phased manner .. SPNEGO 's most visible use is in Microsoft 's `` HTTP Negotiate '' authentication extension .. Microsoft. Microsoft. authentication. authentication. It was first implemented in Internet Explorer 5.01 and IIS 5.0 and provided single sign-on capability later marketed as Integrated Windows Authentication .. Internet Explorer. Internet Explorer. single sign-on. single sign-on. Integrated Windows Authentication. Integrated Windows Authentication. The negotiable sub-mechanisms included NTLM and Kerberos , both used in Active Directory .. NTLM. NTLM. Kerberos. Kerberos ( protocol ). Active Directory. Active Directory. The HTTP Negotiate extension was later implemented with similar support in  :. Mozilla 1.7 beta. Mozilla. Mozilla. Mozilla Firefox 0.9. Mozilla. Mozilla. Mozilla Firefox. Mozilla Firefox. Konqueror 3.3.1. Konqueror. Konqueror. Google Chrome 6.0.472. Google Chrome. Google Chrome